; Don't reduce the byte access to P[i], at least not on targets that | |
; support an efficient 'mem[r1+r2]' addressing mode. | |
; RUN: opt < %s -loop-reduce -disable-output | |
declare i1 @pred(i32) | |
define void @test(i8* %PTR) { | |
; <label>:0 | |
br label %Loop | |
Loop: ; preds = %Loop, %0 | |
%INDVAR = phi i32 [ 0, %0 ], [ %INDVAR2, %Loop ] ; <i32> [#uses=2] | |
%STRRED = getelementptr i8* %PTR, i32 %INDVAR ; <i8*> [#uses=1] | |
store i8 0, i8* %STRRED | |
%INDVAR2 = add i32 %INDVAR, 1 ; <i32> [#uses=2] | |
;; cannot eliminate indvar | |
%cond = call i1 @pred( i32 %INDVAR2 ) ; <i1> [#uses=1] | |
br i1 %cond, label %Loop, label %Out | |
Out: ; preds = %Loop | |
ret void | |
} |