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-rw-r--r--JavaScriptCore/jit/JITArithmetic.cpp1466
1 files changed, 249 insertions, 1217 deletions
diff --git a/JavaScriptCore/jit/JITArithmetic.cpp b/JavaScriptCore/jit/JITArithmetic.cpp
index 2f2ffe3..e5a4620 100644
--- a/JavaScriptCore/jit/JITArithmetic.cpp
+++ b/JavaScriptCore/jit/JITArithmetic.cpp
@@ -20,7 +20,7 @@
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
@@ -46,1188 +46,7 @@ using namespace std;
namespace JSC {
-#if USE(JSVALUE32_64)
-
-void JIT::emit_op_negate(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned src = currentInstruction[2].u.operand;
-
- emitLoad(src, regT1, regT0);
-
- Jump srcNotInt = branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag));
- addSlowCase(branch32(Equal, regT0, Imm32(0)));
-
- neg32(regT0);
- emitStoreInt32(dst, regT0, (dst == src));
-
- Jump end = jump();
-
- srcNotInt.link(this);
- addSlowCase(branch32(Above, regT1, Imm32(JSValue::LowestTag)));
-
- xor32(Imm32(1 << 31), regT1);
- store32(regT1, tagFor(dst));
- if (dst != src)
- store32(regT0, payloadFor(dst));
-
- end.link(this);
-}
-
-void JIT::emitSlow_op_negate(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
-
- linkSlowCase(iter); // 0 check
- linkSlowCase(iter); // double check
-
- JITStubCall stubCall(this, cti_op_negate);
- stubCall.addArgument(regT1, regT0);
- stubCall.call(dst);
-}
-
-void JIT::emit_op_jnless(Instruction* currentInstruction)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- // Int32 less.
- if (isOperandConstantImmediateInt(op1)) {
- emitLoad(op2, regT3, regT2);
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- addJump(branch32(LessThanOrEqual, regT2, Imm32(getConstantOperand(op1).asInt32())), target);
- } else if (isOperandConstantImmediateInt(op2)) {
- emitLoad(op1, regT1, regT0);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addJump(branch32(GreaterThanOrEqual, regT0, Imm32(getConstantOperand(op2).asInt32())), target);
- } else {
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- addJump(branch32(GreaterThanOrEqual, regT0, regT2), target);
- }
-
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32Op1);
- addSlowCase(notInt32Op2);
- return;
- }
- Jump end = jump();
-
- // Double less.
- emitBinaryDoubleOp(op_jnless, target, op1, op2, OperandTypes(), notInt32Op1, notInt32Op2, !isOperandConstantImmediateInt(op1), isOperandConstantImmediateInt(op1) || !isOperandConstantImmediateInt(op2));
- end.link(this);
-}
-
-void JIT::emitSlow_op_jnless(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- if (!supportsFloatingPoint()) {
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- } else {
- if (!isOperandConstantImmediateInt(op1)) {
- linkSlowCase(iter); // double check
- linkSlowCase(iter); // int32 check
- }
- if (isOperandConstantImmediateInt(op1) || !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // double check
- }
-
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
-}
-
-void JIT::emit_op_jless(Instruction* currentInstruction)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- // Int32 less.
- if (isOperandConstantImmediateInt(op1)) {
- emitLoad(op2, regT3, regT2);
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- addJump(branch32(GreaterThan, regT2, Imm32(getConstantOperand(op1).asInt32())), target);
- } else if (isOperandConstantImmediateInt(op2)) {
- emitLoad(op1, regT1, regT0);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addJump(branch32(LessThan, regT0, Imm32(getConstantOperand(op2).asInt32())), target);
- } else {
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- addJump(branch32(LessThan, regT0, regT2), target);
- }
-
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32Op1);
- addSlowCase(notInt32Op2);
- return;
- }
- Jump end = jump();
-
- // Double less.
- emitBinaryDoubleOp(op_jless, target, op1, op2, OperandTypes(), notInt32Op1, notInt32Op2, !isOperandConstantImmediateInt(op1), isOperandConstantImmediateInt(op1) || !isOperandConstantImmediateInt(op2));
- end.link(this);
-}
-
-void JIT::emitSlow_op_jless(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- if (!supportsFloatingPoint()) {
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- } else {
- if (!isOperandConstantImmediateInt(op1)) {
- linkSlowCase(iter); // double check
- linkSlowCase(iter); // int32 check
- }
- if (isOperandConstantImmediateInt(op1) || !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // double check
- }
-
- JITStubCall stubCall(this, cti_op_jless);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(NonZero, regT0), target);
-}
-
-void JIT::emit_op_jnlesseq(Instruction* currentInstruction)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- // Int32 less.
- if (isOperandConstantImmediateInt(op1)) {
- emitLoad(op2, regT3, regT2);
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- addJump(branch32(LessThan, regT2, Imm32(getConstantOperand(op1).asInt32())), target);
- } else if (isOperandConstantImmediateInt(op2)) {
- emitLoad(op1, regT1, regT0);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addJump(branch32(GreaterThan, regT0, Imm32(getConstantOperand(op2).asInt32())), target);
- } else {
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- addJump(branch32(GreaterThan, regT0, regT2), target);
- }
-
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32Op1);
- addSlowCase(notInt32Op2);
- return;
- }
- Jump end = jump();
-
- // Double less.
- emitBinaryDoubleOp(op_jnlesseq, target, op1, op2, OperandTypes(), notInt32Op1, notInt32Op2, !isOperandConstantImmediateInt(op1), isOperandConstantImmediateInt(op1) || !isOperandConstantImmediateInt(op2));
- end.link(this);
-}
-
-void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned op1 = currentInstruction[1].u.operand;
- unsigned op2 = currentInstruction[2].u.operand;
- unsigned target = currentInstruction[3].u.operand;
-
- if (!supportsFloatingPoint()) {
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- } else {
- if (!isOperandConstantImmediateInt(op1)) {
- linkSlowCase(iter); // double check
- linkSlowCase(iter); // int32 check
- }
- if (isOperandConstantImmediateInt(op1) || !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // double check
- }
-
- JITStubCall stubCall(this, cti_op_jlesseq);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
-}
-
-// LeftShift (<<)
-
-void JIT::emit_op_lshift(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (isOperandConstantImmediateInt(op2)) {
- emitLoad(op1, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- lshift32(Imm32(getConstantOperand(op2).asInt32()), regT0);
- emitStoreInt32(dst, regT0, dst == op1);
- return;
- }
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- if (!isOperandConstantImmediateInt(op1))
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- lshift32(regT2, regT0);
- emitStoreInt32(dst, regT0, dst == op1 || dst == op2);
-}
-
-void JIT::emitSlow_op_lshift(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
-
- JITStubCall stubCall(this, cti_op_lshift);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// RightShift (>>)
-
-void JIT::emit_op_rshift(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (isOperandConstantImmediateInt(op2)) {
- emitLoad(op1, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- rshift32(Imm32(getConstantOperand(op2).asInt32()), regT0);
- emitStoreInt32(dst, regT0, dst == op1);
- return;
- }
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- if (!isOperandConstantImmediateInt(op1))
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- rshift32(regT2, regT0);
- emitStoreInt32(dst, regT0, dst == op1 || dst == op2);
-}
-
-void JIT::emitSlow_op_rshift(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
-
- JITStubCall stubCall(this, cti_op_rshift);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// BitAnd (&)
-
-void JIT::emit_op_bitand(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- unsigned op;
- int32_t constant;
- if (getOperandConstantImmediateInt(op1, op2, op, constant)) {
- emitLoad(op, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- and32(Imm32(constant), regT0);
- emitStoreInt32(dst, regT0, (op == dst));
- return;
- }
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- and32(regT2, regT0);
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-}
-
-void JIT::emitSlow_op_bitand(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
-
- JITStubCall stubCall(this, cti_op_bitand);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// BitOr (|)
-
-void JIT::emit_op_bitor(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- unsigned op;
- int32_t constant;
- if (getOperandConstantImmediateInt(op1, op2, op, constant)) {
- emitLoad(op, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- or32(Imm32(constant), regT0);
- emitStoreInt32(dst, regT0, (op == dst));
- return;
- }
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- or32(regT2, regT0);
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-}
-
-void JIT::emitSlow_op_bitor(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
-
- JITStubCall stubCall(this, cti_op_bitor);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// BitXor (^)
-
-void JIT::emit_op_bitxor(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- unsigned op;
- int32_t constant;
- if (getOperandConstantImmediateInt(op1, op2, op, constant)) {
- emitLoad(op, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- xor32(Imm32(constant), regT0);
- emitStoreInt32(dst, regT0, (op == dst));
- return;
- }
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
- xor32(regT2, regT0);
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-}
-
-void JIT::emitSlow_op_bitxor(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (!isOperandConstantImmediateInt(op1) && !isOperandConstantImmediateInt(op2))
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
-
- JITStubCall stubCall(this, cti_op_bitxor);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// BitNot (~)
-
-void JIT::emit_op_bitnot(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned src = currentInstruction[2].u.operand;
-
- emitLoad(src, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
-
- not32(regT0);
- emitStoreInt32(dst, regT0, (dst == src));
-}
-
-void JIT::emitSlow_op_bitnot(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
-
- linkSlowCase(iter); // int32 check
-
- JITStubCall stubCall(this, cti_op_bitnot);
- stubCall.addArgument(regT1, regT0);
- stubCall.call(dst);
-}
-
-// PostInc (i++)
-
-void JIT::emit_op_post_inc(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned srcDst = currentInstruction[2].u.operand;
-
- emitLoad(srcDst, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
-
- if (dst == srcDst) // x = x++ is a noop for ints.
- return;
-
- emitStoreInt32(dst, regT0);
-
- addSlowCase(branchAdd32(Overflow, Imm32(1), regT0));
- emitStoreInt32(srcDst, regT0, true);
-}
-
-void JIT::emitSlow_op_post_inc(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned srcDst = currentInstruction[2].u.operand;
-
- linkSlowCase(iter); // int32 check
- if (dst != srcDst)
- linkSlowCase(iter); // overflow check
-
- JITStubCall stubCall(this, cti_op_post_inc);
- stubCall.addArgument(srcDst);
- stubCall.addArgument(Imm32(srcDst));
- stubCall.call(dst);
-}
-
-// PostDec (i--)
-
-void JIT::emit_op_post_dec(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned srcDst = currentInstruction[2].u.operand;
-
- emitLoad(srcDst, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
-
- if (dst == srcDst) // x = x-- is a noop for ints.
- return;
-
- emitStoreInt32(dst, regT0);
-
- addSlowCase(branchSub32(Overflow, Imm32(1), regT0));
- emitStoreInt32(srcDst, regT0, true);
-}
-
-void JIT::emitSlow_op_post_dec(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned srcDst = currentInstruction[2].u.operand;
-
- linkSlowCase(iter); // int32 check
- if (dst != srcDst)
- linkSlowCase(iter); // overflow check
-
- JITStubCall stubCall(this, cti_op_post_dec);
- stubCall.addArgument(srcDst);
- stubCall.addArgument(Imm32(srcDst));
- stubCall.call(dst);
-}
-
-// PreInc (++i)
-
-void JIT::emit_op_pre_inc(Instruction* currentInstruction)
-{
- unsigned srcDst = currentInstruction[1].u.operand;
-
- emitLoad(srcDst, regT1, regT0);
-
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branchAdd32(Overflow, Imm32(1), regT0));
- emitStoreInt32(srcDst, regT0, true);
-}
-
-void JIT::emitSlow_op_pre_inc(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned srcDst = currentInstruction[1].u.operand;
-
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // overflow check
-
- JITStubCall stubCall(this, cti_op_pre_inc);
- stubCall.addArgument(srcDst);
- stubCall.call(srcDst);
-}
-
-// PreDec (--i)
-
-void JIT::emit_op_pre_dec(Instruction* currentInstruction)
-{
- unsigned srcDst = currentInstruction[1].u.operand;
-
- emitLoad(srcDst, regT1, regT0);
-
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branchSub32(Overflow, Imm32(1), regT0));
- emitStoreInt32(srcDst, regT0, true);
-}
-
-void JIT::emitSlow_op_pre_dec(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned srcDst = currentInstruction[1].u.operand;
-
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // overflow check
-
- JITStubCall stubCall(this, cti_op_pre_dec);
- stubCall.addArgument(srcDst);
- stubCall.call(srcDst);
-}
-
-// Addition (+)
-
-void JIT::emit_op_add(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (!types.first().mightBeNumber() || !types.second().mightBeNumber()) {
- JITStubCall stubCall(this, cti_op_add);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
- return;
- }
-
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- unsigned op;
- int32_t constant;
- if (getOperandConstantImmediateInt(op1, op2, op, constant)) {
- emitAdd32Constant(dst, op, constant, op == op1 ? types.first() : types.second());
- return;
- }
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- // Int32 case.
- addSlowCase(branchAdd32(Overflow, regT2, regT0));
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32Op1);
- addSlowCase(notInt32Op2);
- return;
- }
- Jump end = jump();
-
- // Double case.
- emitBinaryDoubleOp(op_add, dst, op1, op2, types, notInt32Op1, notInt32Op2);
- end.link(this);
-}
-
-void JIT::emitAdd32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType)
-{
- // Int32 case.
- emitLoad(op, regT1, regT0);
- Jump notInt32 = branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag));
- addSlowCase(branchAdd32(Overflow, Imm32(constant), regT0));
- emitStoreInt32(dst, regT0, (op == dst));
-
- // Double case.
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32);
- return;
- }
- Jump end = jump();
-
- notInt32.link(this);
- if (!opType.definitelyIsNumber())
- addSlowCase(branch32(Above, regT1, Imm32(JSValue::LowestTag)));
- move(Imm32(constant), regT2);
- convertInt32ToDouble(regT2, fpRegT0);
- emitLoadDouble(op, fpRegT1);
- addDouble(fpRegT1, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
-
- end.link(this);
-}
-
-void JIT::emitSlow_op_add(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (!types.first().mightBeNumber() || !types.second().mightBeNumber())
- return;
-
- unsigned op;
- int32_t constant;
- if (getOperandConstantImmediateInt(op1, op2, op, constant)) {
- linkSlowCase(iter); // overflow check
-
- if (!supportsFloatingPoint())
- linkSlowCase(iter); // non-sse case
- else {
- ResultType opType = op == op1 ? types.first() : types.second();
- if (!opType.definitelyIsNumber())
- linkSlowCase(iter); // double check
- }
- } else {
- linkSlowCase(iter); // overflow check
-
- if (!supportsFloatingPoint()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- } else {
- if (!types.first().definitelyIsNumber())
- linkSlowCase(iter); // double check
-
- if (!types.second().definitelyIsNumber()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // double check
- }
- }
- }
-
- JITStubCall stubCall(this, cti_op_add);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// Subtraction (-)
-
-void JIT::emit_op_sub(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- if (isOperandConstantImmediateInt(op2)) {
- emitSub32Constant(dst, op1, getConstantOperand(op2).asInt32(), types.first());
- return;
- }
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- // Int32 case.
- addSlowCase(branchSub32(Overflow, regT2, regT0));
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32Op1);
- addSlowCase(notInt32Op2);
- return;
- }
- Jump end = jump();
-
- // Double case.
- emitBinaryDoubleOp(op_sub, dst, op1, op2, types, notInt32Op1, notInt32Op2);
- end.link(this);
-}
-
-void JIT::emitSub32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType)
-{
- // Int32 case.
- emitLoad(op, regT1, regT0);
- Jump notInt32 = branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag));
- addSlowCase(branchSub32(Overflow, Imm32(constant), regT0));
- emitStoreInt32(dst, regT0, (op == dst));
-
- // Double case.
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32);
- return;
- }
- Jump end = jump();
-
- notInt32.link(this);
- if (!opType.definitelyIsNumber())
- addSlowCase(branch32(Above, regT1, Imm32(JSValue::LowestTag)));
- move(Imm32(constant), regT2);
- convertInt32ToDouble(regT2, fpRegT0);
- emitLoadDouble(op, fpRegT1);
- subDouble(fpRegT0, fpRegT1);
- emitStoreDouble(dst, fpRegT1);
-
- end.link(this);
-}
-
-void JIT::emitSlow_op_sub(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (isOperandConstantImmediateInt(op2)) {
- linkSlowCase(iter); // overflow check
-
- if (!supportsFloatingPoint() || !types.first().definitelyIsNumber())
- linkSlowCase(iter); // int32 or double check
- } else {
- linkSlowCase(iter); // overflow check
-
- if (!supportsFloatingPoint()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- } else {
- if (!types.first().definitelyIsNumber())
- linkSlowCase(iter); // double check
-
- if (!types.second().definitelyIsNumber()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // double check
- }
- }
- }
-
- JITStubCall stubCall(this, cti_op_sub);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-void JIT::emitBinaryDoubleOp(OpcodeID opcodeID, unsigned dst, unsigned op1, unsigned op2, OperandTypes types, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters, bool op2IsInRegisters)
-{
- JumpList end;
-
- if (!notInt32Op1.empty()) {
- // Double case 1: Op1 is not int32; Op2 is unknown.
- notInt32Op1.link(this);
-
- ASSERT(op1IsInRegisters);
-
- // Verify Op1 is double.
- if (!types.first().definitelyIsNumber())
- addSlowCase(branch32(Above, regT1, Imm32(JSValue::LowestTag)));
-
- if (!op2IsInRegisters)
- emitLoad(op2, regT3, regT2);
-
- Jump doubleOp2 = branch32(Below, regT3, Imm32(JSValue::LowestTag));
-
- if (!types.second().definitelyIsNumber())
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- convertInt32ToDouble(regT2, fpRegT0);
- Jump doTheMath = jump();
-
- // Load Op2 as double into double register.
- doubleOp2.link(this);
- emitLoadDouble(op2, fpRegT0);
-
- // Do the math.
- doTheMath.link(this);
- switch (opcodeID) {
- case op_mul:
- emitLoadDouble(op1, fpRegT2);
- mulDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_add:
- emitLoadDouble(op1, fpRegT2);
- addDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_sub:
- emitLoadDouble(op1, fpRegT1);
- subDouble(fpRegT0, fpRegT1);
- emitStoreDouble(dst, fpRegT1);
- break;
- case op_div:
- emitLoadDouble(op1, fpRegT1);
- divDouble(fpRegT0, fpRegT1);
- emitStoreDouble(dst, fpRegT1);
- break;
- case op_jnless:
- emitLoadDouble(op1, fpRegT2);
- addJump(branchDouble(DoubleLessThanOrEqualOrUnordered, fpRegT0, fpRegT2), dst);
- break;
- case op_jless:
- emitLoadDouble(op1, fpRegT2);
- addJump(branchDouble(DoubleLessThan, fpRegT2, fpRegT0), dst);
- break;
- case op_jnlesseq:
- emitLoadDouble(op1, fpRegT2);
- addJump(branchDouble(DoubleLessThanOrUnordered, fpRegT0, fpRegT2), dst);
- break;
- default:
- ASSERT_NOT_REACHED();
- }
-
- if (!notInt32Op2.empty())
- end.append(jump());
- }
-
- if (!notInt32Op2.empty()) {
- // Double case 2: Op1 is int32; Op2 is not int32.
- notInt32Op2.link(this);
-
- ASSERT(op2IsInRegisters);
-
- if (!op1IsInRegisters)
- emitLoadPayload(op1, regT0);
-
- convertInt32ToDouble(regT0, fpRegT0);
-
- // Verify op2 is double.
- if (!types.second().definitelyIsNumber())
- addSlowCase(branch32(Above, regT3, Imm32(JSValue::LowestTag)));
-
- // Do the math.
- switch (opcodeID) {
- case op_mul:
- emitLoadDouble(op2, fpRegT2);
- mulDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_add:
- emitLoadDouble(op2, fpRegT2);
- addDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_sub:
- emitLoadDouble(op2, fpRegT2);
- subDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_div:
- emitLoadDouble(op2, fpRegT2);
- divDouble(fpRegT2, fpRegT0);
- emitStoreDouble(dst, fpRegT0);
- break;
- case op_jnless:
- emitLoadDouble(op2, fpRegT1);
- addJump(branchDouble(DoubleLessThanOrEqualOrUnordered, fpRegT1, fpRegT0), dst);
- break;
- case op_jless:
- emitLoadDouble(op2, fpRegT1);
- addJump(branchDouble(DoubleLessThan, fpRegT0, fpRegT1), dst);
- break;
- case op_jnlesseq:
- emitLoadDouble(op2, fpRegT1);
- addJump(branchDouble(DoubleLessThanOrUnordered, fpRegT1, fpRegT0), dst);
- break;
- default:
- ASSERT_NOT_REACHED();
- }
- }
-
- end.link(this);
-}
-
-// Multiplication (*)
-
-void JIT::emit_op_mul(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- // Int32 case.
- move(regT0, regT3);
- addSlowCase(branchMul32(Overflow, regT2, regT0));
- addSlowCase(branchTest32(Zero, regT0));
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-
- if (!supportsFloatingPoint()) {
- addSlowCase(notInt32Op1);
- addSlowCase(notInt32Op2);
- return;
- }
- Jump end = jump();
-
- // Double case.
- emitBinaryDoubleOp(op_mul, dst, op1, op2, types, notInt32Op1, notInt32Op2);
- end.link(this);
-}
-
-void JIT::emitSlow_op_mul(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- Jump overflow = getSlowCase(iter); // overflow check
- linkSlowCase(iter); // zero result check
-
- Jump negZero = branchOr32(Signed, regT2, regT3);
- emitStoreInt32(dst, Imm32(0), (op1 == dst || op2 == dst));
-
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_mul));
-
- negZero.link(this);
- overflow.link(this);
-
- if (!supportsFloatingPoint()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- }
-
- if (supportsFloatingPoint()) {
- if (!types.first().definitelyIsNumber())
- linkSlowCase(iter); // double check
-
- if (!types.second().definitelyIsNumber()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // double check
- }
- }
-
- Label jitStubCall(this);
- JITStubCall stubCall(this, cti_op_mul);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// Division (/)
-
-void JIT::emit_op_div(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (!supportsFloatingPoint()) {
- addSlowCase(jump());
- return;
- }
-
- // Int32 divide.
- JumpList notInt32Op1;
- JumpList notInt32Op2;
-
- JumpList end;
-
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
-
- notInt32Op1.append(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- notInt32Op2.append(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- convertInt32ToDouble(regT0, fpRegT0);
- convertInt32ToDouble(regT2, fpRegT1);
- divDouble(fpRegT1, fpRegT0);
-
- JumpList doubleResult;
- branchConvertDoubleToInt32(fpRegT0, regT0, doubleResult, fpRegT1);
-
- // Int32 result.
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
- end.append(jump());
-
- // Double result.
- doubleResult.link(this);
- emitStoreDouble(dst, fpRegT0);
- end.append(jump());
-
- // Double divide.
- emitBinaryDoubleOp(op_div, dst, op1, op2, types, notInt32Op1, notInt32Op2);
- end.link(this);
-}
-
-void JIT::emitSlow_op_div(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- OperandTypes types = OperandTypes::fromInt(currentInstruction[4].u.operand);
-
- if (!supportsFloatingPoint())
- linkSlowCase(iter);
- else {
- if (!types.first().definitelyIsNumber())
- linkSlowCase(iter); // double check
-
- if (!types.second().definitelyIsNumber()) {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // double check
- }
- }
-
- JITStubCall stubCall(this, cti_op_div);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-// Mod (%)
-
-/* ------------------------------ BEGIN: OP_MOD ------------------------------ */
-
-#if CPU(X86) || CPU(X86_64)
-
-void JIT::emit_op_mod(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (isOperandConstantImmediateInt(op2) && getConstantOperand(op2).asInt32() != 0) {
- emitLoad(op1, X86Registers::edx, X86Registers::eax);
- move(Imm32(getConstantOperand(op2).asInt32()), X86Registers::ecx);
- addSlowCase(branch32(NotEqual, X86Registers::edx, Imm32(JSValue::Int32Tag)));
- if (getConstantOperand(op2).asInt32() == -1)
- addSlowCase(branch32(Equal, X86Registers::eax, Imm32(0x80000000))); // -2147483648 / -1 => EXC_ARITHMETIC
- } else {
- emitLoad2(op1, X86Registers::edx, X86Registers::eax, op2, X86Registers::ebx, X86Registers::ecx);
- addSlowCase(branch32(NotEqual, X86Registers::edx, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, X86Registers::ebx, Imm32(JSValue::Int32Tag)));
-
- addSlowCase(branch32(Equal, X86Registers::eax, Imm32(0x80000000))); // -2147483648 / -1 => EXC_ARITHMETIC
- addSlowCase(branch32(Equal, X86Registers::ecx, Imm32(0))); // divide by 0
- }
-
- move(X86Registers::eax, X86Registers::ebx); // Save dividend payload, in case of 0.
- m_assembler.cdq();
- m_assembler.idivl_r(X86Registers::ecx);
-
- // If the remainder is zero and the dividend is negative, the result is -0.
- Jump storeResult1 = branchTest32(NonZero, X86Registers::edx);
- Jump storeResult2 = branchTest32(Zero, X86Registers::ebx, Imm32(0x80000000)); // not negative
- emitStore(dst, jsNumber(m_globalData, -0.0));
- Jump end = jump();
-
- storeResult1.link(this);
- storeResult2.link(this);
- emitStoreInt32(dst, X86Registers::edx, (op1 == dst || op2 == dst));
- end.link(this);
-}
-
-void JIT::emitSlow_op_mod(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
- if (isOperandConstantImmediateInt(op2) && getConstantOperand(op2).asInt32() != 0) {
- linkSlowCase(iter); // int32 check
- if (getConstantOperand(op2).asInt32() == -1)
- linkSlowCase(iter); // 0x80000000 check
- } else {
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // int32 check
- linkSlowCase(iter); // 0 check
- linkSlowCase(iter); // 0x80000000 check
- }
-
- JITStubCall stubCall(this, cti_op_mod);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-}
-
-#else // CPU(X86) || CPU(X86_64)
-
-void JIT::emit_op_mod(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
-
-#if ENABLE(JIT_OPTIMIZE_MOD)
- emitLoad2(op1, regT1, regT0, op2, regT3, regT2);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::Int32Tag)));
- addSlowCase(branch32(NotEqual, regT3, Imm32(JSValue::Int32Tag)));
-
- addSlowCase(branch32(Equal, regT2, Imm32(0)));
-
- emitNakedCall(m_globalData->jitStubs.ctiSoftModulo());
-
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
-#else
- JITStubCall stubCall(this, cti_op_mod);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(dst);
-#endif
-}
-
-void JIT::emitSlow_op_mod(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
-#if ENABLE(JIT_OPTIMIZE_MOD)
- unsigned result = currentInstruction[1].u.operand;
- unsigned op1 = currentInstruction[2].u.operand;
- unsigned op2 = currentInstruction[3].u.operand;
- linkSlowCase(iter);
- linkSlowCase(iter);
- linkSlowCase(iter);
- JITStubCall stubCall(this, cti_op_mod);
- stubCall.addArgument(op1);
- stubCall.addArgument(op2);
- stubCall.call(result);
-#else
- ASSERT_NOT_REACHED();
-#endif
-}
-
-#endif // CPU(X86) || CPU(X86_64)
-
-/* ------------------------------ END: OP_MOD ------------------------------ */
-
-#else // USE(JSVALUE32_64)
+#if !USE(JSVALUE32_64)
void JIT::emit_op_lshift(Instruction* currentInstruction)
{
@@ -1368,6 +187,118 @@ void JIT::emitSlow_op_rshift(Instruction* currentInstruction, Vector<SlowCaseEnt
stubCall.call(result);
}
+void JIT::emit_op_urshift(Instruction* currentInstruction)
+{
+ unsigned dst = currentInstruction[1].u.operand;
+ unsigned op1 = currentInstruction[2].u.operand;
+ unsigned op2 = currentInstruction[3].u.operand;
+
+ // Slow case of urshift makes assumptions about what registers hold the
+ // shift arguments, so any changes must be updated there as well.
+ if (isOperandConstantImmediateInt(op2)) {
+ emitGetVirtualRegister(op1, regT0);
+ emitJumpSlowCaseIfNotImmediateInteger(regT0);
+ emitFastArithImmToInt(regT0);
+ int shift = getConstantOperand(op2).asInt32();
+ if (shift)
+ urshift32(Imm32(shift & 0x1f), regT0);
+ // unsigned shift < 0 or shift = k*2^32 may result in (essentially)
+ // a toUint conversion, which can result in a value we can represent
+ // as an immediate int.
+ if (shift < 0 || !(shift & 31))
+ addSlowCase(branch32(LessThan, regT0, Imm32(0)));
+#if USE(JSVALUE32)
+ addSlowCase(branchAdd32(Overflow, regT0, regT0));
+ signExtend32ToPtr(regT0, regT0);
+#endif
+ emitFastArithReTagImmediate(regT0, regT0);
+ emitPutVirtualRegister(dst, regT0);
+ return;
+ }
+ emitGetVirtualRegisters(op1, regT0, op2, regT1);
+ if (!isOperandConstantImmediateInt(op1))
+ emitJumpSlowCaseIfNotImmediateInteger(regT0);
+ emitJumpSlowCaseIfNotImmediateInteger(regT1);
+ emitFastArithImmToInt(regT0);
+ emitFastArithImmToInt(regT1);
+ urshift32(regT1, regT0);
+ addSlowCase(branch32(LessThan, regT0, Imm32(0)));
+#if USE(JSVALUE32)
+ addSlowCase(branchAdd32(Overflow, regT0, regT0));
+ signExtend32ToPtr(regT0, regT0);
+#endif
+ emitFastArithReTagImmediate(regT0, regT0);
+ emitPutVirtualRegister(dst, regT0);
+}
+
+void JIT::emitSlow_op_urshift(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
+{
+ unsigned dst = currentInstruction[1].u.operand;
+ unsigned op1 = currentInstruction[2].u.operand;
+ unsigned op2 = currentInstruction[3].u.operand;
+ if (isOperandConstantImmediateInt(op2)) {
+ int shift = getConstantOperand(op2).asInt32();
+ // op1 = regT0
+ linkSlowCase(iter); // int32 check
+#if USE(JSVALUE64)
+ if (supportsFloatingPointTruncate()) {
+ JumpList failures;
+ failures.append(emitJumpIfNotImmediateNumber(regT0)); // op1 is not a double
+ addPtr(tagTypeNumberRegister, regT0);
+ movePtrToDouble(regT0, fpRegT0);
+ failures.append(branchTruncateDoubleToInt32(fpRegT0, regT0));
+ if (shift)
+ urshift32(Imm32(shift & 0x1f), regT0);
+ if (shift < 0 || !(shift & 31))
+ failures.append(branch32(LessThan, regT0, Imm32(0)));
+ emitFastArithReTagImmediate(regT0, regT0);
+ emitPutVirtualRegister(dst, regT0);
+ emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_rshift));
+ failures.link(this);
+ }
+#endif // JSVALUE64
+ if (shift < 0 || !(shift & 31))
+ linkSlowCase(iter); // failed to box in hot path
+#if USE(JSVALUE32)
+ linkSlowCase(iter); // Couldn't box result
+#endif
+ } else {
+ // op1 = regT0
+ // op2 = regT1
+ if (!isOperandConstantImmediateInt(op1)) {
+ linkSlowCase(iter); // int32 check -- op1 is not an int
+#if USE(JSVALUE64)
+ if (supportsFloatingPointTruncate()) {
+ JumpList failures;
+ failures.append(emitJumpIfNotImmediateNumber(regT0)); // op1 is not a double
+ addPtr(tagTypeNumberRegister, regT0);
+ movePtrToDouble(regT0, fpRegT0);
+ failures.append(branchTruncateDoubleToInt32(fpRegT0, regT0));
+ failures.append(emitJumpIfNotImmediateInteger(regT1)); // op2 is not an int
+ emitFastArithImmToInt(regT1);
+ urshift32(regT1, regT0);
+ failures.append(branch32(LessThan, regT0, Imm32(0)));
+ emitFastArithReTagImmediate(regT0, regT0);
+ emitPutVirtualRegister(dst, regT0);
+ emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_rshift));
+ failures.link(this);
+ }
+#endif
+ }
+
+ linkSlowCase(iter); // int32 check - op2 is not an int
+ linkSlowCase(iter); // Can't represent unsigned result as an immediate
+#if USE(JSVALUE32)
+ linkSlowCase(iter); // Couldn't box result
+#endif
+ }
+
+ JITStubCall stubCall(this, cti_op_urshift);
+ stubCall.addArgument(op1, regT0);
+ stubCall.addArgument(op2, regT1);
+ stubCall.call(dst);
+}
+
void JIT::emit_op_jnless(Instruction* currentInstruction)
{
unsigned op1 = currentInstruction[1].u.operand;
@@ -1379,6 +310,24 @@ void JIT::emit_op_jnless(Instruction* currentInstruction)
// - constant int immediate to int immediate
// - int immediate to int immediate
+ if (isOperandConstantImmediateChar(op1)) {
+ emitGetVirtualRegister(op2, regT0);
+ addSlowCase(emitJumpIfNotJSCell(regT0));
+ JumpList failures;
+ emitLoadCharacterString(regT0, regT0, failures);
+ addSlowCase(failures);
+ addJump(branch32(LessThanOrEqual, regT0, Imm32(asString(getConstantOperand(op1))->tryGetValue()[0])), target);
+ return;
+ }
+ if (isOperandConstantImmediateChar(op2)) {
+ emitGetVirtualRegister(op1, regT0);
+ addSlowCase(emitJumpIfNotJSCell(regT0));
+ JumpList failures;
+ emitLoadCharacterString(regT0, regT0, failures);
+ addSlowCase(failures);
+ addJump(branch32(GreaterThanOrEqual, regT0, Imm32(asString(getConstantOperand(op2))->tryGetValue()[0])), target);
+ return;
+ }
if (isOperandConstantImmediateInt(op2)) {
emitGetVirtualRegister(op1, regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
@@ -1416,6 +365,18 @@ void JIT::emitSlow_op_jnless(Instruction* currentInstruction, Vector<SlowCaseEnt
// - floating-point number to constant int immediate
// - constant int immediate to floating-point number
// - floating-point number to floating-point number.
+ if (isOperandConstantImmediateChar(op1) || isOperandConstantImmediateChar(op2)) {
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ JITStubCall stubCall(this, cti_op_jlesseq);
+ stubCall.addArgument(op1, regT0);
+ stubCall.addArgument(op2, regT1);
+ stubCall.call();
+ emitJumpSlowToHot(branchTest32(Zero, regT0), target);
+ return;
+ }
if (isOperandConstantImmediateInt(op2)) {
linkSlowCase(iter);
@@ -1433,9 +394,9 @@ void JIT::emitSlow_op_jnless(Instruction* currentInstruction, Vector<SlowCaseEnt
Jump fail2 = checkStructure(regT0, m_globalData->numberStructure.get());
loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
#endif
-
+
int32_t op2imm = getConstantOperand(op2).asInt32();;
-
+
move(Imm32(op2imm), regT1);
convertInt32ToDouble(regT1, fpRegT1);
@@ -1470,13 +431,13 @@ void JIT::emitSlow_op_jnless(Instruction* currentInstruction, Vector<SlowCaseEnt
Jump fail1;
if (!m_codeBlock->isKnownNotImmediate(op2))
fail1 = emitJumpIfNotJSCell(regT1);
-
+
Jump fail2 = checkStructure(regT1, m_globalData->numberStructure.get());
loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
#endif
-
+
int32_t op1imm = getConstantOperand(op1).asInt32();;
-
+
move(Imm32(op1imm), regT0);
convertInt32ToDouble(regT0, fpRegT0);
@@ -1564,6 +525,24 @@ void JIT::emit_op_jless(Instruction* currentInstruction)
// - constant int immediate to int immediate
// - int immediate to int immediate
+ if (isOperandConstantImmediateChar(op1)) {
+ emitGetVirtualRegister(op2, regT0);
+ addSlowCase(emitJumpIfNotJSCell(regT0));
+ JumpList failures;
+ emitLoadCharacterString(regT0, regT0, failures);
+ addSlowCase(failures);
+ addJump(branch32(GreaterThan, regT0, Imm32(asString(getConstantOperand(op1))->tryGetValue()[0])), target);
+ return;
+ }
+ if (isOperandConstantImmediateChar(op2)) {
+ emitGetVirtualRegister(op1, regT0);
+ addSlowCase(emitJumpIfNotJSCell(regT0));
+ JumpList failures;
+ emitLoadCharacterString(regT0, regT0, failures);
+ addSlowCase(failures);
+ addJump(branch32(LessThan, regT0, Imm32(asString(getConstantOperand(op2))->tryGetValue()[0])), target);
+ return;
+ }
if (isOperandConstantImmediateInt(op2)) {
emitGetVirtualRegister(op1, regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
@@ -1601,6 +580,18 @@ void JIT::emitSlow_op_jless(Instruction* currentInstruction, Vector<SlowCaseEntr
// - floating-point number to constant int immediate
// - constant int immediate to floating-point number
// - floating-point number to floating-point number.
+ if (isOperandConstantImmediateChar(op1) || isOperandConstantImmediateChar(op2)) {
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ JITStubCall stubCall(this, cti_op_jlesseq);
+ stubCall.addArgument(op1, regT0);
+ stubCall.addArgument(op2, regT1);
+ stubCall.call();
+ emitJumpSlowToHot(branchTest32(NonZero, regT0), target);
+ return;
+ }
if (isOperandConstantImmediateInt(op2)) {
linkSlowCase(iter);
@@ -1618,9 +609,9 @@ void JIT::emitSlow_op_jless(Instruction* currentInstruction, Vector<SlowCaseEntr
Jump fail2 = checkStructure(regT0, m_globalData->numberStructure.get());
loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
#endif
-
+
int32_t op2imm = getConstantOperand(op2).asInt32();
-
+
move(Imm32(op2imm), regT1);
convertInt32ToDouble(regT1, fpRegT1);
@@ -1655,13 +646,13 @@ void JIT::emitSlow_op_jless(Instruction* currentInstruction, Vector<SlowCaseEntr
Jump fail1;
if (!m_codeBlock->isKnownNotImmediate(op2))
fail1 = emitJumpIfNotJSCell(regT1);
-
+
Jump fail2 = checkStructure(regT1, m_globalData->numberStructure.get());
loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
#endif
-
+
int32_t op1imm = getConstantOperand(op1).asInt32();
-
+
move(Imm32(op1imm), regT0);
convertInt32ToDouble(regT0, fpRegT0);
@@ -1738,7 +729,7 @@ void JIT::emitSlow_op_jless(Instruction* currentInstruction, Vector<SlowCaseEntr
}
}
-void JIT::emit_op_jnlesseq(Instruction* currentInstruction)
+void JIT::emit_op_jlesseq(Instruction* currentInstruction, bool invert)
{
unsigned op1 = currentInstruction[1].u.operand;
unsigned op2 = currentInstruction[2].u.operand;
@@ -1749,6 +740,24 @@ void JIT::emit_op_jnlesseq(Instruction* currentInstruction)
// - constant int immediate to int immediate
// - int immediate to int immediate
+ if (isOperandConstantImmediateChar(op1)) {
+ emitGetVirtualRegister(op2, regT0);
+ addSlowCase(emitJumpIfNotJSCell(regT0));
+ JumpList failures;
+ emitLoadCharacterString(regT0, regT0, failures);
+ addSlowCase(failures);
+ addJump(branch32(invert ? LessThan : GreaterThanOrEqual, regT0, Imm32(asString(getConstantOperand(op1))->tryGetValue()[0])), target);
+ return;
+ }
+ if (isOperandConstantImmediateChar(op2)) {
+ emitGetVirtualRegister(op1, regT0);
+ addSlowCase(emitJumpIfNotJSCell(regT0));
+ JumpList failures;
+ emitLoadCharacterString(regT0, regT0, failures);
+ addSlowCase(failures);
+ addJump(branch32(invert ? GreaterThan : LessThanOrEqual, regT0, Imm32(asString(getConstantOperand(op2))->tryGetValue()[0])), target);
+ return;
+ }
if (isOperandConstantImmediateInt(op2)) {
emitGetVirtualRegister(op1, regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
@@ -1757,7 +766,7 @@ void JIT::emit_op_jnlesseq(Instruction* currentInstruction)
#else
int32_t op2imm = static_cast<int32_t>(JSImmediate::rawValue(getConstantOperand(op2)));
#endif
- addJump(branch32(GreaterThan, regT0, Imm32(op2imm)), target);
+ addJump(branch32(invert ? GreaterThan : LessThanOrEqual, regT0, Imm32(op2imm)), target);
} else if (isOperandConstantImmediateInt(op1)) {
emitGetVirtualRegister(op2, regT1);
emitJumpSlowCaseIfNotImmediateInteger(regT1);
@@ -1766,17 +775,17 @@ void JIT::emit_op_jnlesseq(Instruction* currentInstruction)
#else
int32_t op1imm = static_cast<int32_t>(JSImmediate::rawValue(getConstantOperand(op1)));
#endif
- addJump(branch32(LessThan, regT1, Imm32(op1imm)), target);
+ addJump(branch32(invert ? LessThan : GreaterThanOrEqual, regT1, Imm32(op1imm)), target);
} else {
emitGetVirtualRegisters(op1, regT0, op2, regT1);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT1);
- addJump(branch32(GreaterThan, regT0, regT1), target);
+ addJump(branch32(invert ? GreaterThan : LessThanOrEqual, regT0, regT1), target);
}
}
-void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
+void JIT::emitSlow_op_jlesseq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter, bool invert)
{
unsigned op1 = currentInstruction[1].u.operand;
unsigned op2 = currentInstruction[2].u.operand;
@@ -1787,6 +796,19 @@ void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseE
// - constant int immediate to floating-point number
// - floating-point number to floating-point number.
+ if (isOperandConstantImmediateChar(op1) || isOperandConstantImmediateChar(op2)) {
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ linkSlowCase(iter);
+ JITStubCall stubCall(this, cti_op_jlesseq);
+ stubCall.addArgument(op1, regT0);
+ stubCall.addArgument(op2, regT1);
+ stubCall.call();
+ emitJumpSlowToHot(branchTest32(invert ? Zero : NonZero, regT0), target);
+ return;
+ }
+
if (isOperandConstantImmediateInt(op2)) {
linkSlowCase(iter);
@@ -1803,13 +825,13 @@ void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseE
Jump fail2 = checkStructure(regT0, m_globalData->numberStructure.get());
loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
#endif
-
+
int32_t op2imm = getConstantOperand(op2).asInt32();;
-
+
move(Imm32(op2imm), regT1);
convertInt32ToDouble(regT1, fpRegT1);
- emitJumpSlowToHot(branchDouble(DoubleLessThanOrUnordered, fpRegT1, fpRegT0), target);
+ emitJumpSlowToHot(branchDouble(invert ? DoubleLessThanOrUnordered : DoubleGreaterThanOrEqual, fpRegT1, fpRegT0), target);
emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnlesseq));
@@ -1826,7 +848,7 @@ void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseE
stubCall.addArgument(regT0);
stubCall.addArgument(op2, regT2);
stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
+ emitJumpSlowToHot(branchTest32(invert ? Zero : NonZero, regT0), target);
} else if (isOperandConstantImmediateInt(op1)) {
linkSlowCase(iter);
@@ -1840,17 +862,17 @@ void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseE
Jump fail1;
if (!m_codeBlock->isKnownNotImmediate(op2))
fail1 = emitJumpIfNotJSCell(regT1);
-
+
Jump fail2 = checkStructure(regT1, m_globalData->numberStructure.get());
loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
#endif
-
+
int32_t op1imm = getConstantOperand(op1).asInt32();;
-
+
move(Imm32(op1imm), regT0);
convertInt32ToDouble(regT0, fpRegT0);
- emitJumpSlowToHot(branchDouble(DoubleLessThanOrUnordered, fpRegT1, fpRegT0), target);
+ emitJumpSlowToHot(branchDouble(invert ? DoubleLessThanOrUnordered : DoubleGreaterThanOrEqual, fpRegT1, fpRegT0), target);
emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnlesseq));
@@ -1867,7 +889,7 @@ void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseE
stubCall.addArgument(op1, regT2);
stubCall.addArgument(regT1);
stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
+ emitJumpSlowToHot(branchTest32(invert ? Zero : NonZero, regT0), target);
} else {
linkSlowCase(iter);
@@ -1896,7 +918,7 @@ void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseE
loadDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT1);
#endif
- emitJumpSlowToHot(branchDouble(DoubleLessThanOrUnordered, fpRegT1, fpRegT0), target);
+ emitJumpSlowToHot(branchDouble(invert ? DoubleLessThanOrUnordered : DoubleGreaterThanOrEqual, fpRegT1, fpRegT0), target);
emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_jnlesseq));
@@ -1919,10 +941,20 @@ void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseE
stubCall.addArgument(regT0);
stubCall.addArgument(regT1);
stubCall.call();
- emitJumpSlowToHot(branchTest32(Zero, regT0), target);
+ emitJumpSlowToHot(branchTest32(invert ? Zero : NonZero, regT0), target);
}
}
+void JIT::emit_op_jnlesseq(Instruction* currentInstruction)
+{
+ emit_op_jlesseq(currentInstruction, true);
+}
+
+void JIT::emitSlow_op_jnlesseq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
+{
+ emitSlow_op_jlesseq(currentInstruction, iter, true);
+}
+
void JIT::emit_op_bitand(Instruction* currentInstruction)
{
unsigned result = currentInstruction[1].u.operand;
@@ -2165,11 +1197,11 @@ void JIT::emit_op_mod(Instruction* currentInstruction)
unsigned op1 = currentInstruction[2].u.operand;
unsigned op2 = currentInstruction[3].u.operand;
-#if ENABLE(JIT_OPTIMIZE_MOD)
+#if ENABLE(JIT_OPTIMIZE_MOD)
emitGetVirtualRegisters(op1, regT0, op2, regT2);
emitJumpSlowCaseIfNotImmediateInteger(regT0);
emitJumpSlowCaseIfNotImmediateInteger(regT2);
-
+
addSlowCase(branch32(Equal, regT2, Imm32(1)));
emitNakedCall(m_globalData->jitStubs.ctiSoftModulo());
@@ -2230,7 +1262,7 @@ void JIT::compileBinaryArithOpSlowCase(OpcodeID opcodeID, Vector<SlowCaseEntry>:
{
// We assume that subtracting TagTypeNumber is equivalent to adding DoubleEncodeOffset.
COMPILE_ASSERT(((JSImmediate::TagTypeNumber + JSImmediate::DoubleEncodeOffset) == 0), TagTypeNumber_PLUS_DoubleEncodeOffset_EQUALS_0);
-
+
Jump notImm1;
Jump notImm2;
if (op1HasImmediateIntFastCase) {
@@ -2423,7 +1455,7 @@ void JIT::emit_op_div(Instruction* currentInstruction)
movePtrToDouble(regT0, fpRegT0);
skipDoubleLoad.link(this);
}
-
+
if (isOperandConstantImmediateDouble(op2)) {
emitGetVirtualRegister(op2, regT1);
addPtr(tagTypeNumberRegister, regT1);
@@ -2536,7 +1568,7 @@ void JIT::compileBinaryArithOp(OpcodeID opcodeID, unsigned dst, unsigned src1, u
op1imm.link(this);
emitFastArithImmToInt(regT0);
convertInt32ToDouble(regT0, fpRegT0);
- // (1c)
+ // (1c)
loadedDouble.link(this);
if (opcodeID == op_add)
addDouble(Address(regT1, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
@@ -2582,7 +1614,7 @@ void JIT::compileBinaryArithOp(OpcodeID opcodeID, unsigned dst, unsigned src1, u
op2imm.link(this);
emitFastArithImmToInt(regT1);
convertInt32ToDouble(regT1, fpRegT1);
- // (1c)
+ // (1c)
loadedDouble.link(this);
loadDouble(Address(regT0, OBJECT_OFFSETOF(JSNumberCell, m_value)), fpRegT0);
if (opcodeID == op_add)
@@ -2623,7 +1655,7 @@ void JIT::compileBinaryArithOp(OpcodeID opcodeID, unsigned dst, unsigned src1, u
Jump op2NonZero = branchTest32(NonZero, regT1);
op1Zero.link(this);
// if either input is zero, add the two together, and check if the result is < 0.
- // If it is, we have a problem (N < 0), (N * 0) == -0, not representatble as a JSImmediate.
+ // If it is, we have a problem (N < 0), (N * 0) == -0, not representatble as a JSImmediate.
move(regT0, regT2);
addSlowCase(branchAdd32(Signed, regT1, regT2));
// Skip the above check if neither input is zero
@@ -2802,7 +1834,7 @@ void JIT::emitSlow_op_sub(Instruction* currentInstruction, Vector<SlowCaseEntry>
/* ------------------------------ END: OP_ADD, OP_SUB, OP_MUL ------------------------------ */
-#endif // USE(JSVALUE32_64)
+#endif // !USE(JSVALUE32_64)
} // namespace JSC
generated by cgit v1.1 at 2025-06-10 07:44:52 +0000