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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
define i1 @qux(i8* %m, i8* %n, i8* %o, i8* %p) nounwind {
; CHECK-LABEL: @qux(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[T7:%.*]] = icmp eq i8* [[M:%.*]], [[N:%.*]]
; CHECK-NEXT: [[T15:%.*]] = icmp eq i8* [[O:%.*]], [[P:%.*]]
; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[T7]], i1 [[T15]], i1 false, !prof [[PROF0:![0-9]+]]
; CHECK-NEXT: ret i1 [[SPEC_SELECT]]
;
entry:
%t7 = icmp eq i8* %m, %n
br i1 %t7, label %bb, label %UnifiedReturnBlock, !prof !0
bb:
%t15 = icmp eq i8* %o, %p
br label %UnifiedReturnBlock
UnifiedReturnBlock:
%result = phi i1 [ 0, %entry ], [ %t15, %bb ]
ret i1 %result
}
@a = external dso_local global i32, align 4
define i32 @PR50638() {
; CHECK-LABEL: @PR50638(
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 0, i32* @a, align 4
; CHECK-NEXT: ret i32 0
;
entry:
store i32 0, i32* @a, align 4
br label %pre.for
pre.for:
%tobool.not = phi i1 [ false, %for ], [ true, %entry ]
br i1 %tobool.not, label %end, label %for
for:
%cmp = phi i1 [ true, %pre.for ], [ false, %post.for ]
%storemerge = phi i32 [ 0, %pre.for ], [ 1, %post.for ]
store i32 %storemerge, i32* @a, align 4
br i1 %cmp, label %post.for, label %pre.for
post.for:
br label %for
end:
ret i32 0
}
!0 = !{!"branch_weights", i32 4, i32 64}
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