1 ; Check that this test makes INDVAR and related stuff dead, because P[indvar] 2 ; gets reduced, making INDVAR dead. 3 4 ; RUN: opt < %s -loop-reduce -S | not grep INDVAR 5 6 target datalayout = "e-p:32:32:32-n:32" 7 8 declare i1 @pred() 9 10 declare i32 @getidx() 11 12 define void @test([10000 x i32]* %P) { 13 ; <label>:0 14 br label %Loop 15 Loop: ; preds = %Loop, %0 16 %INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=2] 17 %idx = call i32 @getidx( ) ; <i32> [#uses=1] 18 %STRRED = getelementptr [10000 x i32]* %P, i32 %INDVAR, i32 %idx ; <i32*> [#uses=1] 19 store i32 0, i32* %STRRED 20 %INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=1] 21 %cond = call i1 @pred( ) ; <i1> [#uses=1] 22 br i1 %cond, label %Loop, label %Out 23 Out: ; preds = %Loop 24 ret void 25 } 26 27
