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Diffstat (limited to 'test/CodeGen/X86/crash.ll')
-rw-r--r-- | test/CodeGen/X86/crash.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/X86/crash.ll b/test/CodeGen/X86/crash.ll new file mode 100644 index 0000000..1e13046 --- /dev/null +++ b/test/CodeGen/X86/crash.ll @@ -0,0 +1,20 @@ +; RUN: llc -march=x86 %s -o - +; RUN: llc -march=x86-64 %s -o - + +; PR6497 + +; Chain and flag folding issues. +define i32 @test1() nounwind ssp { +entry: + %tmp5.i = volatile load i32* undef ; <i32> [#uses=1] + %conv.i = zext i32 %tmp5.i to i64 ; <i64> [#uses=1] + %tmp12.i = volatile load i32* undef ; <i32> [#uses=1] + %conv13.i = zext i32 %tmp12.i to i64 ; <i64> [#uses=1] + %shl.i = shl i64 %conv13.i, 32 ; <i64> [#uses=1] + %or.i = or i64 %shl.i, %conv.i ; <i64> [#uses=1] + %add16.i = add i64 %or.i, 256 ; <i64> [#uses=1] + %shr.i = lshr i64 %add16.i, 8 ; <i64> [#uses=1] + %conv19.i = trunc i64 %shr.i to i32 ; <i32> [#uses=1] + volatile store i32 %conv19.i, i32* undef + ret i32 undef +} |