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12cce93ec7
Csmith discovered that this function can be called with a zero argument, in which case an assert for this triggered. This patch also adds a guard before the other call to this function since it was missing, although the test only covers the case where it was discovered. Reduced test case attached as CodeGen/SystemZ/int-cmp-54.ll. Review: Ulrich Weigand llvm-svn: 306287
21 lines
713 B
LLVM
21 lines
713 B
LLVM
; Check that custom handling of SETCC does not crash
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13
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@g_39 = external global [4 x i8], align 2
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@g_2166 = external global <{ i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i32 }>, align 8
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; Function Attrs: nounwind
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define void @main() local_unnamed_addr #0 {
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%1 = load volatile i88, i88* bitcast (<{ i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i32 }>* @g_2166 to i88*), align 8
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%2 = lshr i88 %1, 87
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%3 = trunc i88 %2 to i64
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%4 = icmp sgt i64 %3, 9293
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%5 = zext i1 %4 to i32
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%6 = lshr i32 %5, 0
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%7 = shl i32 %6, 6
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%8 = trunc i32 %7 to i8
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store i8 %8, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @g_39, i64 0, i64 1), align 1
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unreachable
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}
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