| Chandler Carruth | 49589f0 | 2012-07-02 18:37:59 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -print-lsr-output 2>&1 | FileCheck %s |
| Dan Gohman | 278f958 | 2010-02-22 03:59:54 +0000 | [diff] [blame] | 2 | |
| 3 | ; The icmp is a post-inc use, and the increment is in %bb11, but the |
| 4 | ; scevgep needs to be inserted in %bb so that it is dominated by %t. |
| 5 | |
| 6 | ; CHECK: %t = load i8** undef |
| 7 | ; CHECK: %scevgep = getelementptr i8* %t, i32 %lsr.iv.next |
| 8 | ; CHECK: %c1 = icmp ult i8* %scevgep, undef |
| 9 | |
| 10 | target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128-n32" |
| 11 | target triple = "powerpc-apple-darwin9" |
| 12 | |
| 13 | define void @foo() nounwind { |
| 14 | entry: |
| 15 | br label %bb11 |
| 16 | |
| 17 | bb11: |
| 18 | %i = phi i32 [ 0, %entry ], [ %i.next, %bb ] ; <i32> [#uses=3] |
| 19 | %ii = shl i32 %i, 2 ; <i32> [#uses=1] |
| 20 | %c0 = icmp eq i32 %i, undef ; <i1> [#uses=1] |
| 21 | br i1 %c0, label %bb13, label %bb |
| 22 | |
| 23 | bb: |
| 24 | %t = load i8** undef, align 16 ; <i8*> [#uses=1] |
| 25 | %p = getelementptr i8* %t, i32 %ii ; <i8*> [#uses=1] |
| 26 | %c1 = icmp ult i8* %p, undef ; <i1> [#uses=1] |
| 27 | %i.next = add i32 %i, 1 ; <i32> [#uses=1] |
| 28 | br i1 %c1, label %bb11, label %bb13 |
| 29 | |
| 30 | bb13: |
| 31 | unreachable |
| 32 | } |