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-rw-r--r--lib/VMCore/AutoUpgrade.cpp535
-rw-r--r--lib/VMCore/Instructions.cpp14
-rw-r--r--lib/VMCore/Type.cpp14
3 files changed, 506 insertions, 57 deletions
diff --git a/lib/VMCore/AutoUpgrade.cpp b/lib/VMCore/AutoUpgrade.cpp
index 9330e14..5b5955d 100644
--- a/lib/VMCore/AutoUpgrade.cpp
+++ b/lib/VMCore/AutoUpgrade.cpp
@@ -288,37 +288,224 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
break;
case 'x':
// This fixes all MMX shift intrinsic instructions to take a
- // v1i64 instead of a v2i32 as the second parameter.
- if (Name.compare(5,10,"x86.mmx.ps",10) == 0 &&
- (Name.compare(13,4,"psll", 4) == 0 ||
- Name.compare(13,4,"psra", 4) == 0 ||
- Name.compare(13,4,"psrl", 4) == 0) && Name[17] != 'i') {
-
- const llvm::Type *VT =
- VectorType::get(IntegerType::get(FTy->getContext(), 64), 1);
-
- // We don't have to do anything if the parameter already has
- // the correct type.
- if (FTy->getParamType(1) == VT)
+ // x86_mmx instead of a v1i64, v2i32, v4i16, or v8i8.
+ if (Name.compare(5, 8, "x86.mmx.", 8) == 0) {
+ const Type *X86_MMXTy = VectorType::getX86_MMXTy(FTy->getContext());
+
+ if (Name.compare(13, 4, "padd", 4) == 0 ||
+ Name.compare(13, 4, "psub", 4) == 0 ||
+ Name.compare(13, 4, "pmul", 4) == 0 ||
+ Name.compare(13, 5, "pmadd", 5) == 0 ||
+ Name.compare(13, 4, "pand", 4) == 0 ||
+ Name.compare(13, 3, "por", 3) == 0 ||
+ Name.compare(13, 4, "pxor", 4) == 0 ||
+ Name.compare(13, 4, "pavg", 4) == 0 ||
+ Name.compare(13, 4, "pmax", 4) == 0 ||
+ Name.compare(13, 4, "pmin", 4) == 0 ||
+ Name.compare(13, 4, "psad", 4) == 0 ||
+ Name.compare(13, 4, "psll", 4) == 0 ||
+ Name.compare(13, 4, "psrl", 4) == 0 ||
+ Name.compare(13, 4, "psra", 4) == 0 ||
+ Name.compare(13, 4, "pack", 4) == 0 ||
+ Name.compare(13, 6, "punpck", 6) == 0 ||
+ Name.compare(13, 4, "pcmp", 4) == 0) {
+ assert(FTy->getNumParams() == 2 && "MMX intrinsic takes 2 args!");
+ const Type *SecondParamTy = X86_MMXTy;
+
+ if (Name.compare(13, 5, "pslli", 5) == 0 ||
+ Name.compare(13, 5, "psrli", 5) == 0 ||
+ Name.compare(13, 5, "psrai", 5) == 0)
+ SecondParamTy = FTy->getParamType(1);
+
+ // Don't do anything if it has the correct types.
+ if (FTy->getReturnType() == X86_MMXTy &&
+ FTy->getParamType(0) == X86_MMXTy &&
+ FTy->getParamType(1) == SecondParamTy)
+ break;
+
+ // We first need to change the name of the old (bad) intrinsic, because
+ // its type is incorrect, but we cannot overload that name. We
+ // arbitrarily unique it here allowing us to construct a correctly named
+ // and typed function below.
+ F->setName("");
+
+ // Now construct the new intrinsic with the correct name and type. We
+ // leave the old function around in order to query its type, whatever it
+ // may be, and correctly convert up to the new type.
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy, X86_MMXTy,
+ SecondParamTy, (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 8, "maskmovq", 8) == 0) {
+ // Don't do anything if it has the correct types.
+ if (FTy->getParamType(0) == X86_MMXTy &&
+ FTy->getParamType(1) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ FTy->getReturnType(),
+ X86_MMXTy,
+ X86_MMXTy,
+ FTy->getParamType(2),
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 8, "pmovmskb", 8) == 0) {
+ if (FTy->getParamType(0) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ FTy->getReturnType(),
+ X86_MMXTy,
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 5, "movnt", 5) == 0) {
+ if (FTy->getParamType(1) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ FTy->getReturnType(),
+ FTy->getParamType(0),
+ X86_MMXTy,
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 7, "palignr", 7) == 0) {
+ if (FTy->getReturnType() == X86_MMXTy &&
+ FTy->getParamType(0) == X86_MMXTy &&
+ FTy->getParamType(1) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy,
+ X86_MMXTy,
+ X86_MMXTy,
+ FTy->getParamType(2),
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 5, "pextr", 5) == 0) {
+ if (FTy->getParamType(0) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ FTy->getReturnType(),
+ X86_MMXTy,
+ FTy->getParamType(1),
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 5, "pinsr", 5) == 0) {
+ if (FTy->getReturnType() == X86_MMXTy &&
+ FTy->getParamType(0) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy,
+ X86_MMXTy,
+ FTy->getParamType(1),
+ FTy->getParamType(2),
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 12, "cvtsi32.si64", 12) == 0) {
+ if (FTy->getReturnType() == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy,
+ FTy->getParamType(0),
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 12, "cvtsi64.si32", 12) == 0) {
+ if (FTy->getParamType(0) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ FTy->getReturnType(),
+ X86_MMXTy,
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 8, "vec.init", 8) == 0) {
+ if (FTy->getReturnType() == X86_MMXTy)
+ break;
+
+ F->setName("");
+
+ if (Name.compare(21, 2, ".b", 2) == 0)
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy,
+ FTy->getParamType(0),
+ FTy->getParamType(1),
+ FTy->getParamType(2),
+ FTy->getParamType(3),
+ FTy->getParamType(4),
+ FTy->getParamType(5),
+ FTy->getParamType(6),
+ FTy->getParamType(7),
+ (Type*)0));
+ else if (Name.compare(21, 2, ".w", 2) == 0)
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy,
+ FTy->getParamType(0),
+ FTy->getParamType(1),
+ FTy->getParamType(2),
+ FTy->getParamType(3),
+ (Type*)0));
+ else if (Name.compare(21, 2, ".d", 2) == 0)
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy,
+ FTy->getParamType(0),
+ FTy->getParamType(1),
+ (Type*)0));
+ return true;
+ }
+
+
+ if (Name.compare(13, 9, "vec.ext.d", 9) == 0) {
+ if (FTy->getReturnType() == X86_MMXTy &&
+ FTy->getParamType(0) == X86_MMXTy)
+ break;
+
+ F->setName("");
+ NewFn = cast<Function>(M->getOrInsertFunction(Name,
+ X86_MMXTy,
+ X86_MMXTy,
+ FTy->getParamType(1),
+ (Type*)0));
+ return true;
+ }
+
+ if (Name.compare(13, 9, "emms", 4) == 0 ||
+ Name.compare(13, 9, "femms", 5) == 0) {
+ NewFn = 0;
break;
-
- // We first need to change the name of the old (bad) intrinsic, because
- // its type is incorrect, but we cannot overload that name. We
- // arbitrarily unique it here allowing us to construct a correctly named
- // and typed function below.
- F->setName("");
+ }
- assert(FTy->getNumParams() == 2 && "MMX shift intrinsics take 2 args!");
-
- // Now construct the new intrinsic with the correct name and type. We
- // leave the old function around in order to query its type, whatever it
- // may be, and correctly convert up to the new type.
- NewFn = cast<Function>(M->getOrInsertFunction(Name,
- FTy->getReturnType(),
- FTy->getParamType(0),
- VT,
- (Type *)0));
- return true;
+ // We really shouldn't get here ever.
+ assert(0 && "Invalid MMX intrinsic!");
+ break;
} else if (Name.compare(5,17,"x86.sse2.loadh.pd",17) == 0 ||
Name.compare(5,17,"x86.sse2.loadl.pd",17) == 0 ||
Name.compare(5,16,"x86.sse2.movl.dq",16) == 0 ||
@@ -432,6 +619,38 @@ static Instruction *CallVABD(CallInst *CI, Value *Arg0, Value *Arg1) {
"upgraded."+CI->getName(), CI);
}
+/// ConstructNewCallInst - Construct a new CallInst with the signature of NewFn.
+static void ConstructNewCallInst(Function *NewFn, CallInst *OldCI,
+ Value **Operands, unsigned NumOps,
+ bool AssignName = true) {
+ // Construct a new CallInst.
+ CallInst *NewCI =
+ CallInst::Create(NewFn, Operands, Operands + NumOps,
+ AssignName ? "upgraded." + OldCI->getName() : "", OldCI);
+
+ NewCI->setTailCall(OldCI->isTailCall());
+ NewCI->setCallingConv(OldCI->getCallingConv());
+
+ // Handle any uses of the old CallInst.
+ if (!OldCI->use_empty()) {
+ // If the type has changed, add a cast.
+ Instruction *I = OldCI;
+ if (OldCI->getType() != NewCI->getType()) {
+ Function *OldFn = OldCI->getCalledFunction();
+ CastInst *RetCast =
+ CastInst::Create(CastInst::getCastOpcode(NewCI, true,
+ OldFn->getReturnType(), true),
+ NewCI, OldFn->getReturnType(), NewCI->getName(),OldCI);
+ I = RetCast;
+ }
+ // Replace all uses of the old call with the new cast which has the
+ // correct type.
+ OldCI->replaceAllUsesWith(I);
+ }
+ // Clean up the old call now that it has been completely upgraded.
+ OldCI->eraseFromParent();
+}
+
// UpgradeIntrinsicCall - Upgrade a call to an old intrinsic to be a call the
// upgraded intrinsic. All argument and return casting must be provided in
// order to seamlessly integrate with existing context.
@@ -759,40 +978,246 @@ void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
break;
}
+ case Intrinsic::x86_mmx_padd_b:
+ case Intrinsic::x86_mmx_padd_w:
+ case Intrinsic::x86_mmx_padd_d:
+ case Intrinsic::x86_mmx_padd_q:
+ case Intrinsic::x86_mmx_padds_b:
+ case Intrinsic::x86_mmx_padds_w:
+ case Intrinsic::x86_mmx_paddus_b:
+ case Intrinsic::x86_mmx_paddus_w:
+ case Intrinsic::x86_mmx_psub_b:
+ case Intrinsic::x86_mmx_psub_w:
+ case Intrinsic::x86_mmx_psub_d:
+ case Intrinsic::x86_mmx_psub_q:
+ case Intrinsic::x86_mmx_psubs_b:
+ case Intrinsic::x86_mmx_psubs_w:
+ case Intrinsic::x86_mmx_psubus_b:
+ case Intrinsic::x86_mmx_psubus_w:
+ case Intrinsic::x86_mmx_pmulh_w:
+ case Intrinsic::x86_mmx_pmull_w:
+ case Intrinsic::x86_mmx_pmulhu_w:
+ case Intrinsic::x86_mmx_pmulu_dq:
+ case Intrinsic::x86_mmx_pmadd_wd:
+ case Intrinsic::x86_mmx_pand:
+ case Intrinsic::x86_mmx_pandn:
+ case Intrinsic::x86_mmx_por:
+ case Intrinsic::x86_mmx_pxor:
+ case Intrinsic::x86_mmx_pavg_b:
+ case Intrinsic::x86_mmx_pavg_w:
+ case Intrinsic::x86_mmx_pmaxu_b:
+ case Intrinsic::x86_mmx_pmaxs_w:
+ case Intrinsic::x86_mmx_pminu_b:
+ case Intrinsic::x86_mmx_pmins_w:
+ case Intrinsic::x86_mmx_psad_bw:
+ case Intrinsic::x86_mmx_psll_w:
case Intrinsic::x86_mmx_psll_d:
case Intrinsic::x86_mmx_psll_q:
- case Intrinsic::x86_mmx_psll_w:
- case Intrinsic::x86_mmx_psra_d:
- case Intrinsic::x86_mmx_psra_w:
+ case Intrinsic::x86_mmx_pslli_w:
+ case Intrinsic::x86_mmx_pslli_d:
+ case Intrinsic::x86_mmx_pslli_q:
+ case Intrinsic::x86_mmx_psrl_w:
case Intrinsic::x86_mmx_psrl_d:
case Intrinsic::x86_mmx_psrl_q:
- case Intrinsic::x86_mmx_psrl_w: {
+ case Intrinsic::x86_mmx_psrli_w:
+ case Intrinsic::x86_mmx_psrli_d:
+ case Intrinsic::x86_mmx_psrli_q:
+ case Intrinsic::x86_mmx_psra_w:
+ case Intrinsic::x86_mmx_psra_d:
+ case Intrinsic::x86_mmx_psrai_w:
+ case Intrinsic::x86_mmx_psrai_d:
+ case Intrinsic::x86_mmx_packsswb:
+ case Intrinsic::x86_mmx_packssdw:
+ case Intrinsic::x86_mmx_packuswb:
+ case Intrinsic::x86_mmx_punpckhbw:
+ case Intrinsic::x86_mmx_punpckhwd:
+ case Intrinsic::x86_mmx_punpckhdq:
+ case Intrinsic::x86_mmx_punpcklbw:
+ case Intrinsic::x86_mmx_punpcklwd:
+ case Intrinsic::x86_mmx_punpckldq:
+ case Intrinsic::x86_mmx_pcmpeq_b:
+ case Intrinsic::x86_mmx_pcmpeq_w:
+ case Intrinsic::x86_mmx_pcmpeq_d:
+ case Intrinsic::x86_mmx_pcmpgt_b:
+ case Intrinsic::x86_mmx_pcmpgt_w:
+ case Intrinsic::x86_mmx_pcmpgt_d: {
Value *Operands[2];
+ // Cast the operand to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+
+ switch (NewFn->getIntrinsicID()) {
+ default:
+ // Cast to the X86 MMX type.
+ Operands[1] = new BitCastInst(CI->getArgOperand(1),
+ NewFn->getFunctionType()->getParamType(1),
+ "upgraded.", CI);
+ break;
+ case Intrinsic::x86_mmx_pslli_w:
+ case Intrinsic::x86_mmx_pslli_d:
+ case Intrinsic::x86_mmx_pslli_q:
+ case Intrinsic::x86_mmx_psrli_w:
+ case Intrinsic::x86_mmx_psrli_d:
+ case Intrinsic::x86_mmx_psrli_q:
+ case Intrinsic::x86_mmx_psrai_w:
+ case Intrinsic::x86_mmx_psrai_d:
+ // These take an i32 as their second parameter.
+ Operands[1] = CI->getArgOperand(1);
+ break;
+ }
+
+ ConstructNewCallInst(NewFn, CI, Operands, 2);
+ break;
+ }
+ case Intrinsic::x86_mmx_maskmovq: {
+ Value *Operands[3];
+
+ // Cast the operands to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+ Operands[1] = new BitCastInst(CI->getArgOperand(1),
+ NewFn->getFunctionType()->getParamType(1),
+ "upgraded.", CI);
+ Operands[2] = CI->getArgOperand(2);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 3, false);
+ break;
+ }
+ case Intrinsic::x86_mmx_pmovmskb: {
+ Value *Operands[1];
+
+ // Cast the operand to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 1);
+ break;
+ }
+ case Intrinsic::x86_mmx_movnt_dq: {
+ Value *Operands[2];
+
Operands[0] = CI->getArgOperand(0);
-
- // Cast the second parameter to the correct type.
- BitCastInst *BC = new BitCastInst(CI->getArgOperand(1),
- NewFn->getFunctionType()->getParamType(1),
- "upgraded.", CI);
- Operands[1] = BC;
-
- // Construct a new CallInst
- CallInst *NewCI = CallInst::Create(NewFn, Operands, Operands+2,
- "upgraded."+CI->getName(), CI);
- NewCI->setTailCall(CI->isTailCall());
- NewCI->setCallingConv(CI->getCallingConv());
-
- // Handle any uses of the old CallInst.
- if (!CI->use_empty())
- // Replace all uses of the old call with the new cast which has the
- // correct type.
- CI->replaceAllUsesWith(NewCI);
-
- // Clean up the old call now that it has been completely upgraded.
- CI->eraseFromParent();
+
+ // Cast the operand to the X86 MMX type.
+ Operands[1] = new BitCastInst(CI->getArgOperand(1),
+ NewFn->getFunctionType()->getParamType(1),
+ "upgraded.", CI);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 2, false);
break;
- }
+ }
+ case Intrinsic::x86_mmx_palignr_b: {
+ Value *Operands[3];
+
+ // Cast the operands to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+ Operands[1] = new BitCastInst(CI->getArgOperand(1),
+ NewFn->getFunctionType()->getParamType(1),
+ "upgraded.", CI);
+ Operands[2] = CI->getArgOperand(2);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 3);
+ break;
+ }
+ case Intrinsic::x86_mmx_pextr_w: {
+ Value *Operands[2];
+
+ // Cast the operands to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+ Operands[1] = CI->getArgOperand(1);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 2);
+ break;
+ }
+ case Intrinsic::x86_mmx_pinsr_w: {
+ Value *Operands[3];
+
+ // Cast the operands to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+ Operands[1] = CI->getArgOperand(1);
+ Operands[2] = CI->getArgOperand(2);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 3);
+ break;
+ }
+#if 0
+ case Intrinsic::x86_mmx_cvtsi32_si64: {
+ // The return type needs to be changed.
+ Value *Operands[1];
+ Operands[0] = CI->getArgOperand(0);
+ ConstructNewCallInst(NewFn, CI, Operands, 1);
+ break;
+ }
+ case Intrinsic::x86_mmx_cvtsi64_si32: {
+ Value *Operands[1];
+
+ // Cast the operand to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 1);
+ break;
+ }
+ case Intrinsic::x86_mmx_vec_init_b:
+ case Intrinsic::x86_mmx_vec_init_w:
+ case Intrinsic::x86_mmx_vec_init_d: {
+ // The return type needs to be changed.
+ Value *Operands[8];
+ unsigned NumOps = 0;
+
+ switch (NewFn->getIntrinsicID()) {
+ default: break;
+ case Intrinsic::x86_mmx_vec_init_b: NumOps = 8; break;
+ case Intrinsic::x86_mmx_vec_init_w: NumOps = 4; break;
+ case Intrinsic::x86_mmx_vec_init_d: NumOps = 2; break;
+ }
+
+ switch (NewFn->getIntrinsicID()) {
+ default: break;
+ case Intrinsic::x86_mmx_vec_init_b:
+ Operands[7] = CI->getArgOperand(7);
+ Operands[6] = CI->getArgOperand(6);
+ Operands[5] = CI->getArgOperand(5);
+ Operands[4] = CI->getArgOperand(4);
+ // FALLTHRU
+ case Intrinsic::x86_mmx_vec_init_w:
+ Operands[3] = CI->getArgOperand(3);
+ Operands[2] = CI->getArgOperand(2);
+ // FALLTHRU
+ case Intrinsic::x86_mmx_vec_init_d:
+ Operands[1] = CI->getArgOperand(1);
+ Operands[0] = CI->getArgOperand(0);
+ break;
+ }
+
+ ConstructNewCallInst(NewFn, CI, Operands, NumOps);
+ break;
+ }
+ case Intrinsic::x86_mmx_vec_ext_d: {
+ Value *Operands[2];
+
+ // Cast the operand to the X86 MMX type.
+ Operands[0] = new BitCastInst(CI->getArgOperand(0),
+ NewFn->getFunctionType()->getParamType(0),
+ "upgraded.", CI);
+ Operands[1] = CI->getArgOperand(1);
+
+ ConstructNewCallInst(NewFn, CI, Operands, 2);
+ break;
+ }
+#endif
+
case Intrinsic::ctlz:
case Intrinsic::ctpop:
case Intrinsic::cttz: {
diff --git a/lib/VMCore/Instructions.cpp b/lib/VMCore/Instructions.cpp
index 7f8df58..754d992 100644
--- a/lib/VMCore/Instructions.cpp
+++ b/lib/VMCore/Instructions.cpp
@@ -2360,6 +2360,8 @@ bool CastInst::isCastable(const Type *SrcTy, const Type *DestTy) {
} else { // Casting from something else
return false;
}
+ } else if (DestTy->isX86_MMXTy()) {
+ return SrcBits == 64;
} else { // Casting to something else
return false;
}
@@ -2441,6 +2443,10 @@ CastInst::getCastOpcode(
return BitCast; // vector -> vector
} else if (DestPTy->getBitWidth() == SrcBits) {
return BitCast; // float/int -> vector
+ } else if (SrcTy->isX86_MMXTy()) {
+ assert(DestPTy->getBitWidth()==64 &&
+ "Casting X86_MMX to vector of wrong width");
+ return BitCast; // MMX to 64-bit vector
} else {
assert(!"Illegal cast to vector (wrong type or size)");
}
@@ -2452,6 +2458,14 @@ CastInst::getCastOpcode(
} else {
assert(!"Casting pointer to other than pointer or int");
}
+ } else if (DestTy->isX86_MMXTy()) {
+ if (const VectorType *SrcPTy = dyn_cast<VectorType>(SrcTy)) {
+ assert(SrcPTy->getBitWidth()==64 &&
+ "Casting vector of wrong width to X86_MMX");
+ return BitCast; // 64-bit vector to MMX
+ } else {
+ assert(!"Illegal cast to X86_MMX");
+ }
} else {
assert(!"Casting to type that is not first-class");
}
diff --git a/lib/VMCore/Type.cpp b/lib/VMCore/Type.cpp
index 3704999..ba50e07 100644
--- a/lib/VMCore/Type.cpp
+++ b/lib/VMCore/Type.cpp
@@ -173,10 +173,20 @@ bool Type::canLosslesslyBitCastTo(const Type *Ty) const {
return false;
// Vector -> Vector conversions are always lossless if the two vector types
- // have the same size, otherwise not.
- if (const VectorType *thisPTy = dyn_cast<VectorType>(this))
+ // have the same size, otherwise not. Also, 64-bit vector types can be
+ // converted to x86mmx.
+ if (const VectorType *thisPTy = dyn_cast<VectorType>(this)) {
if (const VectorType *thatPTy = dyn_cast<VectorType>(Ty))
return thisPTy->getBitWidth() == thatPTy->getBitWidth();
+ if (Ty->getTypeID() == Type::X86_MMXTyID &&
+ thisPTy->getBitWidth() == 64)
+ return true;
+ }
+
+ if (this->getTypeID() == Type::X86_MMXTyID)
+ if (const VectorType *thatPTy = dyn_cast<VectorType>(Ty))
+ if (thatPTy->getBitWidth() == 64)
+ return true;
// At this point we have only various mismatches of the first class types
// remaining and ptr->ptr. Just select the lossless conversions. Everything
generated by cgit v1.1 at 2024-09-12 10:28:01 +0000