1 ; Don't reduce the byte access to P[i], at least not on targets that 2 ; support an efficient 'mem[r1+r2]' addressing mode. 3 4 ; RUN: opt < %s -loop-reduce -disable-output 5 6 7 declare i1 @pred(i32) 8 9 define void @test(i8* %PTR) { 10 ; <label>:0 11 br label %Loop 12 Loop: ; preds = %Loop, %0 13 %INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=2] 14 %STRRED = getelementptr i8* %PTR, i32 %INDVAR ; <i8*> [#uses=1] 15 store i8 0, i8* %STRRED 16 %INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=2] 17 ;; cannot eliminate indvar 18 %cond = call i1 @pred( i32 %INDVAR2 ) ; <i1> [#uses=1] 19 br i1 %cond, label %Loop, label %Out 20 Out: ; preds = %Loop 21 ret void 22 } 23
