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0c7260ec4b
https://llvm.org/bugs/show_bug.cgi?id=29058. While node legalization we tried to legalize its operands. If an operand node is replaced during legalization the user node may be destroyed. Differential Revision: https://reviews.llvm.org/D24244 llvm-svn: 280862
34 lines
1.4 KiB
LLVM
34 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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;RUN: llc < %s | FileCheck %s
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; This test case failed on legalization of "shl" node. PR29058.
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@structMember = external local_unnamed_addr global i64, align 8
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; Function Attrs: norecurse nounwind uwtable
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define i32 @_Z3foov() local_unnamed_addr #0 {
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; CHECK-LABEL: _Z3foov:
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; CHECK: # BB#0: # %entry
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; CHECK-NEXT: movq %rax, {{.*}}(%rip)
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; CHECK-NEXT: retq
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entry:
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%bool_1 = icmp ne i8 undef, 0
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%bool_2 = icmp eq i8 undef, 0
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%0 = select i1 %bool_2, i32 2147483646, i32 undef
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%or_1 = select i1 %bool_1, i32 undef, i32 -1
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%shl_1 = shl i32 %0, %or_1
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%conv = zext i32 %shl_1 to i64
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store i64 %conv, i64* @structMember, align 8
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%tmp = select i1 %bool_2, i32 2147483646, i32 undef
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%lnot = icmp eq i8 undef, 0
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%or_2 = select i1 %lnot, i32 -1, i32 undef
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%shl_2 = shl i32 %tmp, %or_2
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ret i32 %shl_2
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}
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attributes #0 = { norecurse nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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