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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; This is currently failing because of bug in LoopSimplifyCFG. It does not update
3; duplicating Phi inputs properly.
4; REQUIRES: asserts
5; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -loop-simplifycfg -debug-only=loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa 2>&1 < %s | FileCheck %s
6; 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
7; RUN: opt -S -enable-loop-simplifycfg-term-folding=true -loop-simplifycfg -enable-mssa-loop-dependency=true -verify-memoryssa -debug-only=loop-simplifycfg -verify-loop-info -verify-dom-info -verify-loop-lcssa 2>&1 < %s | FileCheck %s
8
9target datalayout = "P40"
10
11@a = external global i16, align 1
12
13define void @f1(i1 %cond) {
14; CHECK-LABEL: @f1(
15; CHECK-NEXT:  entry:
16; CHECK-NEXT:    br label [[FOR_COND:%.*]]
17; CHECK:       for.cond:
18; CHECK-NEXT:    br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[FOR_INC:%.*]]
19; CHECK:       if.then:
20; CHECK-NEXT:    [[TMP0:%.*]] = load i16, i16* @a, align 1
21; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp ne i16 [[TMP0]], 0
22; CHECK-NEXT:    br label [[FOR_INC]]
23; CHECK:       for.inc:
24; CHECK-NEXT:    [[C_1:%.*]] = phi i16 [ 2, [[IF_THEN]] ], [ 1, [[FOR_COND]] ]
25; CHECK-NEXT:    br label [[FOR_COND]]
26;
27entry:
28  br label %for.cond
29
30for.cond:
31  br i1 %cond, label %if.then, label %for.inc
32
33if.then:
34  %0 = load i16, i16* @a, align 1
35  %tobool = icmp ne i16 %0, 0
36  br i1 %tobool, label %for.inc, label %for.inc
37
38for.inc:
39  %c.1 = phi i16 [ 2, %if.then ], [ 2, %if.then ], [ 1, %for.cond ]
40  br label %for.cond
41}
42