| Dan Gohman | d7df9e1 | 2010-02-12 10:34:29 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -o - | FileCheck %s |
| Dan Gohman | 87bc2f1 | 2008-06-13 21:43:41 +0000 | [diff] [blame] | 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" |
| 4 | |
| Dan Gohman | d7df9e1 | 2010-02-12 10:34:29 +0000 | [diff] [blame] | 5 | ; The comparison happens before the relevant use, but it can still be rewritten |
| 6 | ; to compare with zero. |
| 7 | |
| 8 | ; CHECK: foo: |
| 9 | ; CHECK: align |
| 10 | ; CHECK: incl %eax |
| 11 | ; CHECK-NEXT: decl %ecx |
| 12 | ; CHECK-NEXT: jne |
| Dan Gohman | cb387ac | 2008-06-16 22:34:15 +0000 | [diff] [blame] | 13 | |
| Dan Gohman | 983156f | 2010-01-19 21:51:51 +0000 | [diff] [blame] | 14 | define void @foo() nounwind { |
| Dan Gohman | 87bc2f1 | 2008-06-13 21:43:41 +0000 | [diff] [blame] | 15 | entry: |
| 16 | br label %loop |
| 17 | |
| 18 | loop: |
| 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 |
| 26 | |
| 27 | exit: |
| 28 | ret void |
| 29 | } |