| ; RUN: llc < %s -o - | FileCheck %s |
| 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" |
| target triple = "x86_64-apple-darwin9" |
| |
| ; The comparison happens before the relevant use, but it can still be rewritten |
| ; to compare with zero. |
| |
| ; CHECK: foo: |
| ; CHECK: align |
| ; CHECK: incl %eax |
| ; CHECK-NEXT: decl %ecx |
| ; CHECK-NEXT: jne |
| |
| define void @foo() nounwind { |
| entry: |
| br label %loop |
| |
| loop: |
| %indvar = phi i32 [ 0, %entry ], [ %i.2.0.us1534, %loop ] ; <i32> [#uses=1] |
| %i.2.0.us1534 = add i32 %indvar, 1 ; <i32> [#uses=3] |
| %tmp611.us1535 = icmp eq i32 %i.2.0.us1534, 4 ; <i1> [#uses=2] |
| %tmp623.us1538 = select i1 %tmp611.us1535, i32 6, i32 0 ; <i32> [#uses=0] |
| %tmp628.us1540 = shl i32 %i.2.0.us1534, 1 ; <i32> [#uses=1] |
| %tmp645646647.us1547 = sext i32 %tmp628.us1540 to i64 ; <i64> [#uses=0] |
| br i1 %tmp611.us1535, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |