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authorEvan Cheng <evan.cheng@apple.com>2009-08-10 20:25:59 +0000
committerEvan Cheng <evan.cheng@apple.com>2009-08-10 20:25:59 +0000
commit898c62b4036f13a156a58c437f43f4fcb17923a0 (patch)
treec71cfda8ed5cd85d772e28ce75e99638523aea48 /test/CodeGen/Thumb2/2009-08-10-ISelBug.ll
parenta4509893aacf06a14f470c0981aa90b7248423a8 (diff)
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Handle the constantfp created during post-legalization dag combiner phase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78594 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2/2009-08-10-ISelBug.ll')
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diff --git a/test/CodeGen/Thumb2/2009-08-10-ISelBug.ll b/test/CodeGen/Thumb2/2009-08-10-ISelBug.ll
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+++ b/test/CodeGen/Thumb2/2009-08-10-ISelBug.ll
@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | llc -mtriple=thumbv7-apple-darwin -mattr=+vfp2
+
+define arm_apcscc float @t1(i32 %v0) nounwind {
+entry:
+ store i32 undef, i32* undef, align 4
+ %0 = load [4 x i8]** undef, align 4 ; <[4 x i8]*> [#uses=1]
+ %1 = load i8* undef, align 1 ; <i8> [#uses=1]
+ %2 = zext i8 %1 to i32 ; <i32> [#uses=1]
+ %3 = getelementptr [4 x i8]* %0, i32 %v0, i32 0 ; <i8*> [#uses=1]
+ %4 = load i8* %3, align 1 ; <i8> [#uses=1]
+ %5 = zext i8 %4 to i32 ; <i32> [#uses=1]
+ %6 = sub i32 %5, %2 ; <i32> [#uses=1]
+ %7 = sitofp i32 %6 to float ; <float> [#uses=1]
+ ret float %7
+}