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Add auto upgrade support for x86 pcmpgt/pcmpeq intrinics removed in r149367.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149678 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2012-02-03 06:10:55 +00:00
parent ec8eac6d8b
commit e058d27655
1 changed files with 40 additions and 3 deletions
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43
lib/VMCore/AutoUpgrade.cpp
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@ -55,6 +55,16 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
}
break;
}
case 'x': {
if (Name.startswith("x86.sse2.pcmpeq.") ||
Name.startswith("x86.sse2.pcmpgt.") ||
Name.startswith("x86.avx2.pcmpeq.") ||
Name.startswith("x86.avx2.pcmpgt.")) {
NewFn = 0;
return true;
}
break;
}
}
// This may not belong here. This function is effectively being overloaded
@ -85,13 +95,40 @@ bool llvm::UpgradeGlobalVariable(GlobalVariable *GV) {
// upgraded intrinsic. All argument and return casting must be provided in
// order to seamlessly integrate with existing context.
void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
assert(CI->getCalledFunction() && "Intrinsic call is not direct?");
if (!NewFn) return;
Function *F = CI->getCalledFunction();
LLVMContext &C = CI->getContext();
IRBuilder<> Builder(C);
Builder.SetInsertPoint(CI->getParent(), CI);
assert(F && "Intrinsic call is not direct?");
if (!NewFn) {
// Get the Function's name.
StringRef Name = F->getName();
Value *Rep;
// Upgrade packed integer vector compares intrinsics to compare instructions
if (Name.startswith("llvm.x86.sse2.pcmpeq.") ||
Name.startswith("llvm.x86.avx2.pcmpeq.")) {
Rep = Builder.CreateICmpEQ(CI->getArgOperand(0), CI->getArgOperand(1),
"pcmpeq");
// need to sign extend since icmp returns vector of i1
Rep = Builder.CreateSExt(Rep, CI->getType(), "");
} else if (Name.startswith("llvm.x86.sse2.pcmpgt.") ||
Name.startswith("llvm.x86.avx2.pcmpgt.")) {
Rep = Builder.CreateICmpSGT(CI->getArgOperand(0), CI->getArgOperand(1),
"pcmpgt");
// need to sign extend since icmp returns vector of i1
Rep = Builder.CreateSExt(Rep, CI->getType(), "");
} else {
llvm_unreachable("Unknown function for CallInst upgrade.");
}
CI->replaceAllUsesWith(Rep);
CI->eraseFromParent();
return;
}
switch (NewFn->getIntrinsicID()) {
default:
llvm_unreachable("Unknown function for CallInst upgrade.");