diff options
| -rw-r--r-- | lib/Target/R600/SIInstrInfo.td | 12 | ||||
| -rw-r--r-- | lib/Target/R600/SIInstructions.td | 7 | ||||
| -rw-r--r-- | test/CodeGen/R600/fconst64.ll | 12 |
3 files changed, 31 insertions, 0 deletions
diff --git a/lib/Target/R600/SIInstrInfo.td b/lib/Target/R600/SIInstrInfo.td index 655a8b1..067a34b 100644 --- a/lib/Target/R600/SIInstrInfo.td +++ b/lib/Target/R600/SIInstrInfo.td @@ -21,11 +21,23 @@ def LO32 : SDNodeXForm<imm, [{ return CurDAG->getTargetConstant(N->getZExtValue() & 0xffffffff, MVT::i32); }]>; +def LO32f : SDNodeXForm<fpimm, [{ + uint64_t val = N->getValueAPF().bitcastToAPInt().getZExtValue() & 0xffffffff; + float *fval = reinterpret_cast<float *>(&val); + return CurDAG->getTargetConstantFP(*fval, MVT::f32); +}]>; + // Transformation function, extract the upper 32bit of a 64bit immediate def HI32 : SDNodeXForm<imm, [{ return CurDAG->getTargetConstant(N->getZExtValue() >> 32, MVT::i32); }]>; +def HI32f : SDNodeXForm<fpimm, [{ + uint64_t val = N->getValueAPF().bitcastToAPInt().getZExtValue() >> 32; + float *fval = reinterpret_cast<float *>(&val); + return CurDAG->getTargetConstantFP(*fval, MVT::f32); +}]>; + def IMM8bitDWORD : ImmLeaf < i32, [{ return (Imm & ~0x3FC) == 0; diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td index 8436b67..3deaa2e 100644 --- a/lib/Target/R600/SIInstructions.td +++ b/lib/Target/R600/SIInstructions.td @@ -1509,6 +1509,13 @@ def : Pat < (S_MOV_B32 (i32 (HI32 imm:$imm))), sub1) >; +def : Pat < + (f64 fpimm:$imm), + (INSERT_SUBREG (INSERT_SUBREG (f64 (IMPLICIT_DEF)), + (V_MOV_B32_e32 (f32 (LO32f fpimm:$imm))), sub0), + (V_MOV_B32_e32 (f32 (HI32f fpimm:$imm))), sub1) +>; + /********** ===================== **********/ /********** Interpolation Paterns **********/ /********** ===================== **********/ diff --git a/test/CodeGen/R600/fconst64.ll b/test/CodeGen/R600/fconst64.ll new file mode 100644 index 0000000..2402a9c --- /dev/null +++ b/test/CodeGen/R600/fconst64.ll @@ -0,0 +1,12 @@ +; RUN: llc < %s -march=r600 -mcpu=tahiti | FileCheck %s + +; CHECK: @fconst_f64 +; CHECK: V_MOV_B32_e32 {{VGPR[0-9]+}}, 0.000000e+00 +; CHECK-NEXT: V_MOV_B32_e32 {{VGPR[0-9]+}}, 2.312500e+00 + +define void @fconst_f64(double addrspace(1)* %out, double addrspace(1)* %in) { + %r1 = load double addrspace(1)* %in + %r2 = fadd double %r1, 5.000000e+00 + store double %r2, double addrspace(1)* %out + ret void +} |