Remove 'llvm.x86.avx2.vbroadcasti128' intrinsic.
The intrinsic is no longer generated by the front-end. Remove the intrinsic and
auto-upgrade it to a vector shuffle.
Reviewed by Nadav
This is related to rdar://problem/18742778.
llvm-svn: 231182
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index 8306a1a..6800e7a 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -179,6 +179,7 @@
Name == "x86.avx2.pblendw" ||
Name == "x86.avx2.pblendd.128" ||
Name == "x86.avx2.pblendd.256" ||
+ Name == "x86.avx2.vbroadcasti128" ||
(Name.startswith("x86.xop.vpcom") && F->arg_size() == 2)) {
NewFn = nullptr;
return true;
@@ -553,6 +554,17 @@
for (unsigned I = 0; I < EltNum; ++I)
Rep = Builder.CreateInsertElement(Rep, Load,
ConstantInt::get(I32Ty, I));
+ } else if (Name == "llvm.x86.avx2.vbroadcasti128") {
+ // Replace vbroadcasts with a vector shuffle.
+ Value *Op = Builder.CreatePointerCast(
+ CI->getArgOperand(0),
+ PointerType::getUnqual(VectorType::get(Type::getInt64Ty(C), 2)));
+ Value *Load = Builder.CreateLoad(Op);
+ SmallVector<Constant *, 4> Idxs; // 0, 1, 0, 1.
+ for (unsigned i = 0; i != 4; ++i)
+ Idxs.push_back(Builder.getInt32(i & 1));
+ Rep = Builder.CreateShuffleVector(Load, UndefValue::get(Load->getType()),
+ ConstantVector::get(Idxs));
} else if (Name == "llvm.x86.sse2.psll.dq") {
// 128-bit shift left specified in bits.
unsigned Shift = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();