[AMDGPU] fix test to survive more FP undef constant folding
llvm-svn: 327066
diff --git a/llvm/test/CodeGen/AMDGPU/debug-value.ll b/llvm/test/CodeGen/AMDGPU/debug-value.ll
index 8fa05f6..75b2114 100644
--- a/llvm/test/CodeGen/AMDGPU/debug-value.ll
+++ b/llvm/test/CodeGen/AMDGPU/debug-value.ll
@@ -22,15 +22,16 @@
%tmp15 = bitcast i8 addrspace(1)* %tmp14 to <4 x float> addrspace(1)*
%tmp16 = getelementptr inbounds <4 x float>, <4 x float> addrspace(1)* %tmp15, i64 undef
%tmp17 = load <4 x float>, <4 x float> addrspace(1)* %tmp16, align 16
- %tmp18 = fsub <4 x float> undef, %tmp17
- %tmp19 = fadd float undef, 0.000000e+00
+ %tmp18 = fsub <4 x float> %tmp17, %tmp17
+ %ext = extractelement <4 x float> %tmp18, i32 1
+ %tmp19 = fadd float %ext, 0.000000e+00
%tmp20 = fcmp oeq float %tmp19, 0.000000e+00
br i1 %tmp20, label %bb21, label %bb25
bb21: ; preds = %bb
- %tmp22 = fmul <4 x float> %tmp18, undef
- %tmp23 = fadd <4 x float> undef, %tmp22
- %tmp24 = fmul <4 x float> %tmp23, undef
+ %tmp22 = fmul <4 x float> %tmp18, %tmp18
+ %tmp23 = fadd <4 x float> %tmp22, %tmp22
+ %tmp24 = fmul <4 x float> %tmp23, %tmp23
br label %bb28
bb25: ; preds = %bb