1 ; RUN: llc < %s -o - | FileCheck %s
2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
3 target triple = "x86_64-apple-darwin9"
5 ; The comparison happens before the relevant use, but it can still be rewritten
6 ; to compare with zero.
11 ; CHECK-NEXT: decl %ecx
14 define void @foo() nounwind {
19 %indvar = phi i32 [ 0, %entry ], [ %i.2.0.us1534, %loop ] ; <i32> [#uses=1]
20 %i.2.0.us1534 = add i32 %indvar, 1 ; <i32> [#uses=3]
21 %tmp611.us1535 = icmp eq i32 %i.2.0.us1534, 4 ; <i1> [#uses=2]
22 %tmp623.us1538 = select i1 %tmp611.us1535, i32 6, i32 0 ; <i32> [#uses=0]
23 %tmp628.us1540 = shl i32 %i.2.0.us1534, 1 ; <i32> [#uses=1]
24 %tmp645646647.us1547 = sext i32 %tmp628.us1540 to i64 ; <i64> [#uses=0]
25 br i1 %tmp611.us1535, label %exit, label %loop