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-rw-r--r--lib/IR/AutoUpgrade.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/IR/AutoUpgrade.cpp b/lib/IR/AutoUpgrade.cpp
index 2d1d4272a7..52434d0196 100644
--- a/lib/IR/AutoUpgrade.cpp
+++ b/lib/IR/AutoUpgrade.cpp
@@ -111,6 +111,7 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
Name == "x86.avx.movnt.dq.256" ||
Name == "x86.avx.movnt.pd.256" ||
Name == "x86.avx.movnt.ps.256" ||
+ Name == "x86.sse42.crc32.64.8" ||
(Name.startswith("x86.xop.vpcom") && F->arg_size() == 2)) {
NewFn = 0;
return true;
@@ -271,6 +272,12 @@ void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
Function *VPCOM = Intrinsic::getDeclaration(F->getParent(), intID);
Rep = Builder.CreateCall3(VPCOM, CI->getArgOperand(0),
CI->getArgOperand(1), Builder.getInt8(Imm));
+ } else if (Name == "llvm.x86.sse42.crc32.64.8") {
+ Function *CRC32 = Intrinsic::getDeclaration(F->getParent(),
+ Intrinsic::x86_sse42_crc32_32_8);
+ Value *Trunc0 = Builder.CreateTrunc(CI->getArgOperand(0), Type::getInt32Ty(C));
+ Rep = Builder.CreateCall2(CRC32, Trunc0, CI->getArgOperand(1));
+ Rep = Builder.CreateZExt(Rep, CI->getType(), "");
} else {
bool PD128 = false, PD256 = false, PS128 = false, PS256 = false;
if (Name == "llvm.x86.avx.vpermil.pd.256")