================
@@ -4187,6 +4187,29 @@ struct MemorySanitizerVisitor : public
InstVisitor<MemorySanitizerVisitor> {
setShadow(&I, IRB.CreateBitCast(CI, getShadowTy(&I)));
setOriginForNaryOp(I);
}
+ // Instrument AVX permutation intrinsic.
+ // We apply the same permutation (argument index 1) to the shadows.
+ void handleAVXVpermil2var(IntrinsicInst &I) {
+ assert(I.arg_size() == 3);
+ assert(I.getArgOperand(0)->getType() == I.getArgOperand(2)->getType());
+ assert(I.getType() == I.getArgOperand(0)->getType());
----------------
thurstond wrote:
Please also check that I.getType() is a vector type, and that
`I.getArgOperand(0)` has the same number of elements as `I.getArgOperand(1)`
https://github.com/llvm/llvm-project/pull/143463
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