forked from OSchip/llvm-project
17 lines
540 B
LLVM
17 lines
540 B
LLVM
; RUN: llc -march=x86-64 -mattr=-sse42,+sse41 < %s | FileCheck %s
|
|
; Make sure we don't load from the location pointed to by %p
|
|
; twice: it has non-obvious performance implications, and
|
|
; the relevant transformation doesn't know how to update
|
|
; the chains correctly.
|
|
; PR10747
|
|
|
|
; CHECK: test:
|
|
; CHECK: pextrd $2, %xmm
|
|
define <4 x i32> @test(<4 x i32>* %p) {
|
|
%v = load <4 x i32>* %p
|
|
%e = extractelement <4 x i32> %v, i32 2
|
|
%cmp = icmp eq i32 %e, 3
|
|
%sel = select i1 %cmp, <4 x i32> %v, <4 x i32> zeroinitializer
|
|
ret <4 x i32> %sel
|
|
}
|