33 lines
877 B
LLVM
33 lines
877 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -S -passes=jump-threading %s | FileCheck %s
|
|
|
|
; https://github.com/llvm/llvm-project/issues/58812
|
|
|
|
define void @test() {
|
|
; CHECK-LABEL: @test(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[EXIT:%.*]]
|
|
; CHECK: loop:
|
|
; CHECK-NEXT: [[DUMMY:%.*]] = phi i16 [ 0, [[LOOP:%.*]] ]
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i16 0, 1
|
|
; CHECK-NEXT: [[XOR:%.*]] = xor i1 false, [[XOR]]
|
|
; CHECK-NEXT: br i1 [[XOR]], label [[LOOP]], label [[EXIT]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
br i1 false, label %loop, label %exit
|
|
|
|
loop:
|
|
%bool = phi i1 [ %xor, %loop.latch ], [ false, %entry ]
|
|
%cmp = icmp eq i16 0, 1
|
|
%xor = xor i1 %cmp, %bool
|
|
br i1 %bool, label %loop.latch, label %exit
|
|
|
|
loop.latch:
|
|
%dummy = phi i16 [ 0, %loop ]
|
|
br label %loop
|
|
|
|
exit:
|
|
ret void
|
|
}
|