48 lines
1.5 KiB
LLVM
48 lines
1.5 KiB
LLVM
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; RUN: llc < %s
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; This testcase used to crash. See PR29132.
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target triple = "x86_64-unknown-linux-gnu"
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@a = common local_unnamed_addr global i16 0, align 2
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@c = common global i32 0, align 4
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@d = common local_unnamed_addr global i8 0, align 1
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@b = common global i32 0, align 4
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; Function Attrs: norecurse nounwind optsize uwtable
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define i32 @main() local_unnamed_addr #0 {
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entry:
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%0 = load volatile i32, i32* @c, align 4
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%tobool = icmp eq i32 %0, 0
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%1 = load i16, i16* @a, align 2
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br i1 %tobool, label %lor.rhs, label %lor.end
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lor.rhs: ; preds = %entry
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%inc = add i16 %1, 1
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store i16 %inc, i16* @a, align 2
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br label %lor.end
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lor.end: ; preds = %entry, %lor.rhs
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%2 = phi i16 [ %inc, %lor.rhs ], [ %1, %entry ]
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%dec = add i16 %2, -1
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store i16 %dec, i16* @a, align 2
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%3 = load i8, i8* @d, align 1
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%sub = sub i8 0, %3
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%tobool4 = icmp eq i16 %dec, 0
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br i1 %tobool4, label %land.end, label %land.rhs
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land.rhs: ; preds = %lor.end
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%4 = load volatile i32, i32* @b, align 4
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%tobool5 = icmp ne i32 %4, 0
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br label %land.end
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land.end: ; preds = %lor.end, %land.rhs
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%5 = phi i1 [ false, %lor.end ], [ %tobool5, %land.rhs ]
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%land.ext = zext i1 %5 to i8
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%or = or i8 %land.ext, %sub
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store i8 %or, i8* @d, align 1
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ret i32 0
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}
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attributes #0 = { norecurse nounwind optsize uwtable "target-cpu"="x86-64" }
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