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authorShih-wei Liao <sliao@google.com>2010-02-10 11:10:31 -0800
committerShih-wei Liao <sliao@google.com>2010-02-10 11:10:31 -0800
commite264f62ca09a8f65c87a46d562a4d0f9ec5d457e (patch)
tree59e3d57ef656cef79afa708ae0a3daf25cd91fcf /test/Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll
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Check in LLVM r95781.
Diffstat (limited to 'test/Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll')
-rw-r--r--test/Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll9
1 files changed, 9 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll b/test/Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll
new file mode 100644
index 0000000..7adeb9f
--- /dev/null
+++ b/test/Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll
@@ -0,0 +1,9 @@
+; RUN: opt < %s -instcombine -S | grep sub
+; RUN: opt < %s -instcombine -S | grep add
+
+define <4 x float> @test(<4 x float> %tmp26, <4 x float> %tmp53) {
+ ; (X+Y)-Y != X for fp vectors.
+ %tmp64 = fadd <4 x float> %tmp26, %tmp53 ; <<4 x float>> [#uses=1]
+ %tmp75 = fsub <4 x float> %tmp64, %tmp53 ; <<4 x float>> [#uses=1]
+ ret <4 x float> %tmp75
+}