qiucf added subscribers: jonpa, uweigand.
qiucf added a comment.
Why this changes IR output of following case?
// RUN: clang vecpromote.c -S -o - -O0 -target s390x-linux-gnu -fzvector
-emit-llvm
#include <vecintrin.h>
vector int si;
int g;
int i;
void foo() {
si = vec_promote(g, i);
}
// store <4 x i32> undef, ptr %__vec.i, align 16, !noalias !6 ; this undef
becomes poison after this patch
// %2 = load i32, ptr %__scalar.addr.i, align 4, !noalias !6
// %3 = load i32, ptr %__index.addr.i, align 4, !noalias !6
// %4 = load <4 x i32>, ptr %__vec.i, align 16, !noalias !6
// %vecins.i = insertelement <4 x i32> %4, i32 %2, i32 %and.i
I see no PowerPC related case changes. Maybe adding SystemZ folks for comments
@uweigand @jonpa
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D149548/new/
https://reviews.llvm.org/D149548
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