mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 12:33:33 +02:00
a1e9b95eab
FindIDom() can fail in two different ways - it can either return nullptr or the block itself, depending on the circumstances. Some users of FindIDom() check one error condition, while others check the other. Change it to always return nullptr on failure. This fixes PR26004. Differential Revision: http://reviews.llvm.org/D15847 llvm-svn: 256955
33 lines
1.1 KiB
LLVM
33 lines
1.1 KiB
LLVM
; RUN: llc %s -o - -enable-shrink-wrap=true | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
|
|
target triple = "i686-pc-linux"
|
|
|
|
@b = global i32 1, align 4
|
|
@a = common global i32 0, align 4
|
|
|
|
declare void @fn1() #0
|
|
|
|
; CHECK-LABEL: fn2:
|
|
define void @fn2() #0 {
|
|
entry:
|
|
%0 = load i32, i32* @b, align 4
|
|
%tobool = icmp eq i32 %0, 0
|
|
br i1 %tobool, label %if.end, label %lbl
|
|
|
|
lbl: ; preds = %if.end, %entry
|
|
store i32 0, i32* @b, align 4
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %entry, %lbl
|
|
tail call void @fn1()
|
|
%1 = load i32, i32* @b, align 4
|
|
%tobool1 = icmp eq i32 %1, 0
|
|
br i1 %tobool1, label %if.end3, label %lbl
|
|
|
|
if.end3: ; preds = %if.end
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { norecurse nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
|