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| author | Chris Lattner <sabre@nondot.org> | 2010-03-14 19:46:02 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-03-14 19:46:02 +0000 |
| commit | c4a3f23b9251b07785cca646ad27b426dfa23230 (patch) | |
| tree | 6adeeb5dca53861a24b22b89cebb1ed796f19454 /test | |
| parent | 25e0ab9ae5507b0589be852f54693dec66796f0e (diff) | |
| download | external_llvm-c4a3f23b9251b07785cca646ad27b426dfa23230.zip external_llvm-c4a3f23b9251b07785cca646ad27b426dfa23230.tar.gz external_llvm-c4a3f23b9251b07785cca646ad27b426dfa23230.tar.bz2 | |
fix ShrinkDemandedOps to not leave dead nodes around,
fixing PR6607
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98512 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/crash.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/X86/crash.ll b/test/CodeGen/X86/crash.ll index b75d265..cfa1270 100644 --- a/test/CodeGen/X86/crash.ll +++ b/test/CodeGen/X86/crash.ll @@ -71,3 +71,22 @@ return: ; preds = %if.else, %entry } declare i32 @safe(i32) + +; PR6607 +define fastcc void @test5(i32 %FUNC) nounwind { +foo: + %0 = load i8* undef, align 1 ; <i8> [#uses=3] + %1 = sext i8 %0 to i32 ; <i32> [#uses=2] + %2 = zext i8 %0 to i32 ; <i32> [#uses=1] + %tmp1.i5037 = urem i32 %2, 10 ; <i32> [#uses=1] + %tmp.i5038 = icmp ugt i32 %tmp1.i5037, 15 ; <i1> [#uses=1] + %3 = zext i1 %tmp.i5038 to i8 ; <i8> [#uses=1] + %4 = icmp slt i8 %0, %3 ; <i1> [#uses=1] + %5 = add nsw i32 %1, 256 ; <i32> [#uses=1] + %storemerge.i.i57 = select i1 %4, i32 %5, i32 %1 ; <i32> [#uses=1] + %6 = shl i32 %storemerge.i.i57, 16 ; <i32> [#uses=1] + %7 = sdiv i32 %6, -256 ; <i32> [#uses=1] + %8 = trunc i32 %7 to i8 ; <i8> [#uses=1] + store i8 %8, i8* undef, align 1 + ret void +} |