[llvm] r246167 - AMDGPU/SI: Add test for folding constants into operands

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Thu Aug 27 12:41:27 2015
New Revision: 246167

URL: http://llvm.org/viewvc/llvm-project?rev=246167&view=rev
Log:
AMDGPU/SI: Add test for folding constants into operands

Patch by Axel Davy

Added:
    llvm/trunk/test/CodeGen/AMDGPU/si-literal-folding.ll

Added: llvm/trunk/test/CodeGen/AMDGPU/si-literal-folding.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AMDGPU/si-literal-folding.ll?rev=246167&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/si-literal-folding.ll (added)
+++ llvm/trunk/test/CodeGen/AMDGPU/si-literal-folding.ll Thu Aug 27 12:41:27 2015
@@ -0,0 +1,17 @@
+; XFAIL: *
+; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck %s
+
+; CHECK-LABEL: {{^}}main:
+; CHECK-NOT: v_mov_b32_e32 v{{[0-9]+}}, 0xbf4353f8
+
+define void @main(float) #0 {
+main_body:
+  %1 = fmul float %0, 0x3FE86A7F00000000
+  %2 = fmul float %0, 0xBFE86A7F00000000
+  call void @llvm.SI.export(i32 15, i32 0, i32 1, i32 12, i32 0, float %1, float %1, float %2, float %2)
+  ret void
+}
+
+declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)
+
+attributes #0 = { "ShaderType"="1" }