forked from OSchip/llvm-project
34 lines
823 B
LLVM
34 lines
823 B
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
||
|
|
; RUN: opt -ipsccp -S %s | FileCheck %s
|
||
|
|
|
||
|
|
declare i1 @cond()
|
||
|
|
|
||
|
|
define i32 @test() {
|
||
|
|
; CHECK-LABEL: @test(
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: br label [[LOOP:%.*]]
|
||
|
|
; CHECK: loop:
|
||
|
|
; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
|
||
|
|
; CHECK-NEXT: br i1 [[C_1]], label [[LOOP]], label [[LATCH_2:%.*]]
|
||
|
|
; CHECK: latch.2:
|
||
|
|
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
|
||
|
|
; CHECK-NEXT: br i1 [[C_2]], label [[LOOP]], label [[EXIT:%.*]]
|
||
|
|
; CHECK: exit:
|
||
|
|
; CHECK-NEXT: ret i32 0
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop:
|
||
|
|
%p = phi i32 [ undef, %entry ], [ 0, %latch.2 ], [ %p, %loop]
|
||
|
|
%c.1 = call i1 @cond()
|
||
|
|
br i1 %c.1, label %loop, label %latch.2
|
||
|
|
|
||
|
|
latch.2:
|
||
|
|
%c.2 = call i1 @cond()
|
||
|
|
br i1 %c.2, label %loop, label %exit
|
||
|
|
|
||
|
|
exit:
|
||
|
|
ret i32 %p
|
||
|
|
}
|