; RUN: llc -march=x86-64 -mattr=-sse4.2,+sse4.1 < %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-LABEL: test: | |
; CHECK: pextrd $2, %xmm | |
define <4 x i32> @test(<4 x i32>* %p) { | |
%v = load <4 x i32>, <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 | |
} |