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; 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
}
|
