1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc -mtriple=x86_64-unknown -mattr=-sse4.2,+sse4.1 < %s | FileCheck %s 3 4 ; Make sure we don't load from the location pointed to by %p 5 ; twice: it has non-obvious performance implications, and 6 ; the relevant transformation doesn't know how to update 7 ; the chains correctly. 8 ; PR10747 9 10 define <4 x i32> @test(<4 x i32>* %p) { 11 ; CHECK-LABEL: test: 12 ; CHECK: # %bb.0: 13 ; CHECK-NEXT: movaps (%rdi), %xmm0 14 ; CHECK-NEXT: extractps $2, %xmm0, %eax 15 ; CHECK-NEXT: cmpl $3, %eax 16 ; CHECK-NEXT: je .LBB0_2 17 ; CHECK-NEXT: # %bb.1: 18 ; CHECK-NEXT: xorps %xmm0, %xmm0 19 ; CHECK-NEXT: .LBB0_2: 20 ; CHECK-NEXT: retq 21 %v = load <4 x i32>, <4 x i32>* %p 22 %e = extractelement <4 x i32> %v, i32 2 23 %cmp = icmp eq i32 %e, 3 24 %sel = select i1 %cmp, <4 x i32> %v, <4 x i32> zeroinitializer 25 ret <4 x i32> %sel 26 } 27
