| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -indvars -S | FileCheck %s |
| Dan Gohman | 208278c | 2009-08-25 17:42:10 +0000 | [diff] [blame] | 2 | ; PR4775 |
| 3 | |
| 4 | ; Indvars shouldn't sink the alloca out of the entry block, even though |
| 5 | ; it's not used until after the loop. |
| 6 | |
| 7 | 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-f80:128:128" |
| 8 | target triple = "i386-apple-darwin10.0" |
| 9 | |
| 10 | @llvm.used = appending global [1 x i8*] [i8* bitcast (i32 ()* @main to i8*)], |
| 11 | section "llvm.metadata" ; <[1 x i8*]*> [#uses=0] |
| 12 | |
| 13 | define i32 @main() nounwind { |
| 14 | ; CHECK: entry: |
| 15 | ; CHECK-NEXT: %result.i = alloca i32, align 4 |
| 16 | entry: |
| 17 | %result.i = alloca i32, align 4 ; <i32*> [#uses=2] |
| 18 | br label %while.cond |
| 19 | |
| 20 | while.cond: ; preds = %while.cond, %entry |
| 21 | %call = call i32 @bar() nounwind ; <i32> [#uses=1] |
| 22 | %tobool = icmp eq i32 %call, 0 ; <i1> [#uses=1] |
| 23 | br i1 %tobool, label %while.end, label %while.cond |
| 24 | |
| 25 | while.end: ; preds = %while.cond |
| 26 | volatile store i32 0, i32* %result.i |
| 27 | %tmp.i = volatile load i32* %result.i ; <i32> [#uses=0] |
| 28 | ret i32 0 |
| 29 | } |
| 30 | |
| 31 | declare i32 @bar() |