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1; Check that this test makes INDVAR and related stuff dead.
2; RUN: opt < %s -loop-reduce -S | FileCheck %s
3
4; CHECK: phi
5; CHECK: phi
6; CHECK-NOT: phi
7
8declare i1 @pred()
9
10define void @test1({ i32, i32 }* %P) {
11; <label>:0
12	br label %Loop
13Loop:		; preds = %Loop, %0
14	%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ]		; <i32> [#uses=3]
15	%gep1 = getelementptr { i32, i32 }, { i32, i32 }* %P, i32 %INDVAR, i32 0		; <i32*> [#uses=1]
16	store i32 0, i32* %gep1
17	%gep2 = getelementptr { i32, i32 }, { i32, i32 }* %P, i32 %INDVAR, i32 1		; <i32*> [#uses=1]
18	store i32 0, i32* %gep2
19	%INDVAR2 = add i32 %INDVAR, 1		; <i32> [#uses=1]
20	%cond = call i1 @pred( )		; <i1> [#uses=1]
21	br i1 %cond, label %Loop, label %Out
22Out:		; preds = %Loop
23	ret void
24}
25
26define void @test2([2 x i32]* %P) {
27; <label>:0
28	br label %Loop
29Loop:		; preds = %Loop, %0
30	%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ]		; <i32> [#uses=3]
31	%gep1 = getelementptr [2 x i32], [2 x i32]* %P, i32 %INDVAR, i64 0		; <i32*> [#uses=1]
32	store i32 0, i32* %gep1
33	%gep2 = getelementptr [2 x i32], [2 x i32]* %P, i32 %INDVAR, i64 1		; <i32*> [#uses=1]
34	store i32 0, i32* %gep2
35	%INDVAR2 = add i32 %INDVAR, 1		; <i32> [#uses=1]
36	%cond = call i1 @pred( )		; <i1> [#uses=1]
37	br i1 %cond, label %Loop, label %Out
38Out:		; preds = %Loop
39	ret void
40}
41