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1; Check that this test makes INDVAR and related stuff dead.
2; RUN: opt < %s -loop-reduce -S | grep phi | count 2
3
4declare i1 @pred()
5
6define void @test1({ i32, i32 }* %P) {
7; <label>:0
8	br label %Loop
9Loop:		; preds = %Loop, %0
10	%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ]		; <i32> [#uses=3]
11	%gep1 = getelementptr { i32, i32 }* %P, i32 %INDVAR, i32 0		; <i32*> [#uses=1]
12	store i32 0, i32* %gep1
13	%gep2 = getelementptr { i32, i32 }* %P, i32 %INDVAR, i32 1		; <i32*> [#uses=1]
14	store i32 0, i32* %gep2
15	%INDVAR2 = add i32 %INDVAR, 1		; <i32> [#uses=1]
16	%cond = call i1 @pred( )		; <i1> [#uses=1]
17	br i1 %cond, label %Loop, label %Out
18Out:		; preds = %Loop
19	ret void
20}
21
22define void @test2([2 x i32]* %P) {
23; <label>:0
24	br label %Loop
25Loop:		; preds = %Loop, %0
26	%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ]		; <i32> [#uses=3]
27	%gep1 = getelementptr [2 x i32]* %P, i32 %INDVAR, i64 0		; <i32*> [#uses=1]
28	store i32 0, i32* %gep1
29	%gep2 = getelementptr [2 x i32]* %P, i32 %INDVAR, i64 1		; <i32*> [#uses=1]
30	store i32 0, i32* %gep2
31	%INDVAR2 = add i32 %INDVAR, 1		; <i32> [#uses=1]
32	%cond = call i1 @pred( )		; <i1> [#uses=1]
33	br i1 %cond, label %Loop, label %Out
34Out:		; preds = %Loop
35	ret void
36}
37