llvm/test/Transforms/LoopSimplifyCFG/phi_with_duplicating_inputs.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; This is currently failing because of bug in LoopSimplifyCFG. It does not update
; duplicating Phi inputs properly.
; REQUIRES: asserts
; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -passes='require<domtree>,loop(loop-simplifycfg)' -debug-only=loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa 2>&1 < %s | FileCheck %s
; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -passes=loop-simplifycfg -verify-memoryssa -debug-only=loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa 2>&1 < %s | FileCheck %s

target datalayout = "P40"

@a = external global i16, align 1

define void @f1(i1 %cond) {
; CHECK-LABEL: @f1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[FOR_COND:%.*]]
; CHECK:       for.cond:
; CHECK-NEXT:    br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[FOR_INC:%.*]]
; CHECK:       if.then:
; CHECK-NEXT:    [[TMP0:%.*]] = load i16, ptr @a, align 1
; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp ne i16 [[TMP0]], 0
; CHECK-NEXT:    br label [[FOR_INC]]
; CHECK:       for.inc:
; CHECK-NEXT:    [[C_1:%.*]] = phi i16 [ 1, [[FOR_COND]] ], [ 2, [[IF_THEN]] ]
; CHECK-NEXT:    br label [[FOR_COND]]
;
entry:
  br label %for.cond

for.cond:
  br i1 %cond, label %if.then, label %for.inc

if.then:
  %0 = load i16, ptr @a, align 1
  %tobool = icmp ne i16 %0, 0
  br i1 %tobool, label %for.inc, label %for.inc

for.inc:
  %c.1 = phi i16 [ 2, %if.then ], [ 2, %if.then ], [ 1, %for.cond ]
  br label %for.cond
}