From 3c76e5f5888a1cb7dddea2330973a6d23fae897b Mon Sep 17 00:00:00 2001 From: Matthias Braun Date: Wed, 1 Jul 2015 22:34:59 +0000 Subject: [PATCH] Test for specific output in lit test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241200 91177308-0d34-0410-b5e6-96231b3b80d8 --- .../AMDGPU/subreg-coalescer-undef-use.ll | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/test/CodeGen/AMDGPU/subreg-coalescer-undef-use.ll b/test/CodeGen/AMDGPU/subreg-coalescer-undef-use.ll index e023a622984..ac9bedb2f8b 100644 --- a/test/CodeGen/AMDGPU/subreg-coalescer-undef-use.ll +++ b/test/CodeGen/AMDGPU/subreg-coalescer-undef-use.ll @@ -1,8 +1,25 @@ -; RUN: llc -march=amdgcn -mcpu=SI -o /dev/null %s +; RUN: llc -march=amdgcn -mcpu=SI -o - %s | FileCheck %s ; Don't crash when the use of an undefined value is only detected by the ; register coalescer because it is hidden with subregister insert/extract. target triple="amdgcn--" +; CHECK-LABEL: foobar: +; CHECK: s_load_dword s2, s[0:1], 0x9 +; CHECK-NEXT: s_load_dwordx2 s[4:5], s[0:1], 0xb +; CHECK-NEXT: s_waitcnt lgkmcnt(0) +; CHECK-NEXT: v_mov_b32_e32 v0, s2 +; CHECK-NEXT: s_and_saveexec_b64 s[2:3], s[0:1] +; CHECK-NEXT: s_xor_b64 s[2:3], exec, s[2:3] +; BB0_1: +; CHECK: s_load_dword s6, s[0:1], 0xa +; CHECK-NEXT: s_waitcnt lgkmcnt(0) +; CHECK-NEXT: v_mov_b32_e32 v0, s6 +; BB0_2: +; CHECK: s_or_b64 exec, exec, s[2:3] +; CHECK-NEXT: s_mov_b32 s7, 0xf000 +; CHECK-NEXT: s_mov_b32 s6, -1 +; CHECK-NEXT: buffer_store_dword v1, s[4:7], 0 +; CHECK-NEXT: s_endpgm define void @foobar(float %a0, float %a1, float addrspace(1)* %out) nounwind { entry: %v0 = insertelement <4 x float> undef, float %a0, i32 0