| Dan Gohman | 3cc96f3 | 2009-04-22 16:11:16 +0000 | [diff] [blame] | 1 | ; RUN: llvm-as < %s | opt -indvars -disable-output |
| 2 | ; PR4009 |
| 3 | |
| 4 | 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-f80:32:32" |
| 5 | target triple = "i386-pc-linux-gnu" |
| 6 | |
| 7 | define void @safe_bcopy(i8* %to) nounwind { |
| 8 | entry: |
| 9 | %cmp11 = icmp ult i8* %to, null ; <i1> [#uses=1] |
| 10 | br i1 %cmp11, label %loop, label %return |
| 11 | |
| 12 | return: ; preds = %entry |
| 13 | ret void |
| 14 | |
| 15 | loop: ; preds = %loop, %if.else |
| 16 | %pn = phi i8* [ %ge, %loop ], [ null, %entry ] ; <i8*> [#uses=1] |
| 17 | %cp = ptrtoint i8* %to to i32 ; <i32> [#uses=1] |
| 18 | %su = sub i32 0, %cp ; <i32> [#uses=1] |
| 19 | %ge = getelementptr i8* %pn, i32 %su ; <i8*> [#uses=2] |
| 20 | tail call void @bcopy(i8* %ge) nounwind |
| 21 | br label %loop |
| 22 | } |
| 23 | |
| 24 | declare void @bcopy(i8* nocapture) nounwind |