; Base should not be i*3, it should be i*2. | |
; RUN: opt < %s -loop-reduce -S | \ | |
; RUN: not grep {mul.*%i, 3} | |
; Indvar should not start at zero: | |
; RUN: opt < %s -loop-reduce -S | \ | |
; RUN: not grep {phi i32 .* 0} | |
; END. | |
; mul uint %i, 3 | |
target datalayout = "e-p:32:32-n32" | |
target triple = "i686-apple-darwin8" | |
@flags2 = external global [8193 x i8], align 32 ; <[8193 x i8]*> [#uses=1] | |
define void @foo(i32 %k, i32 %i.s) { | |
entry: | |
%i = bitcast i32 %i.s to i32 ; <i32> [#uses=2] | |
%k_addr.012 = shl i32 %i.s, 1 ; <i32> [#uses=1] | |
%tmp14 = icmp sgt i32 %k_addr.012, 8192 ; <i1> [#uses=1] | |
br i1 %tmp14, label %return, label %bb.preheader | |
bb.preheader: ; preds = %entry | |
%tmp. = shl i32 %i, 1 ; <i32> [#uses=1] | |
br label %bb | |
bb: ; preds = %bb, %bb.preheader | |
%indvar = phi i32 [ %indvar.next, %bb ], [ 0, %bb.preheader ] ; <i32> [#uses=2] | |
%tmp.15 = mul i32 %indvar, %i ; <i32> [#uses=1] | |
%tmp.16 = add i32 %tmp.15, %tmp. ; <i32> [#uses=2] | |
%k_addr.0.0 = bitcast i32 %tmp.16 to i32 ; <i32> [#uses=1] | |
%gep.upgrd.1 = zext i32 %tmp.16 to i64 ; <i64> [#uses=1] | |
%tmp = getelementptr [8193 x i8]* @flags2, i32 0, i64 %gep.upgrd.1 ; <i8*> [#uses=1] | |
store i8 0, i8* %tmp | |
%k_addr.0 = add i32 %k_addr.0.0, %i.s ; <i32> [#uses=1] | |
%tmp.upgrd.2 = icmp sgt i32 %k_addr.0, 8192 ; <i1> [#uses=1] | |
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] | |
br i1 %tmp.upgrd.2, label %return.loopexit, label %bb | |
return.loopexit: ; preds = %bb | |
br label %return | |
return: ; preds = %return.loopexit, %entry | |
ret void | |
} |