1 ; RUN: llc -march=x86-64 -mattr=-sse4.2,+sse4.1 < %s | FileCheck %s 2 ; Make sure we don't load from the location pointed to by %p 3 ; twice: it has non-obvious performance implications, and 4 ; the relevant transformation doesn't know how to update 5 ; the chains correctly. 6 ; PR10747 7 8 ; CHECK-LABEL: test: 9 ; CHECK: pextrd $2, %xmm 10 define <4 x i32> @test(<4 x i32>* %p) { 11 %v = load <4 x i32>* %p 12 %e = extractelement <4 x i32> %v, i32 2 13 %cmp = icmp eq i32 %e, 3 14 %sel = select i1 %cmp, <4 x i32> %v, <4 x i32> zeroinitializer 15 ret <4 x i32> %sel 16 } 17
