| Nadav Rotem | d5aae98 | 2012-12-21 23:48:49 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux | FileCheck %s |
| 2 | |
| 3 | 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-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-apple-macosx10.7.0" |
| 5 | |
| 6 | ; In the code below we need to copy the EFLAGS because of scheduling constraints. |
| 7 | ; When copying the EFLAGS we need to write to the stack with push/pop. This forces |
| 8 | ; us to emit the prolog. |
| 9 | |
| 10 | ; CHECK: main |
| 11 | ; CHECK: subq{{.*}}rsp |
| 12 | ; CHECK: ret |
| 13 | define i32 @main(i32 %arg, i8** %arg1) nounwind { |
| 14 | bb: |
| 15 | %tmp = alloca i32, align 4 ; [#uses=3 type=i32*] |
| 16 | %tmp2 = alloca i32, align 4 ; [#uses=3 type=i32*] |
| 17 | %tmp3 = alloca i32 ; [#uses=1 type=i32*] |
| 18 | store i32 1, i32* %tmp, align 4 |
| 19 | store i32 1, i32* %tmp2, align 4 |
| 20 | br label %bb4 |
| 21 | |
| 22 | bb4: ; preds = %bb4, %bb |
| 23 | %tmp6 = load i32* %tmp2, align 4 ; [#uses=1 type=i32] |
| 24 | %tmp7 = add i32 %tmp6, -1 ; [#uses=2 type=i32] |
| 25 | store i32 %tmp7, i32* %tmp2, align 4 |
| 26 | %tmp8 = icmp eq i32 %tmp7, 0 ; [#uses=1 type=i1] |
| 27 | %tmp9 = load i32* %tmp ; [#uses=1 type=i32] |
| 28 | %tmp10 = add i32 %tmp9, -1 ; [#uses=1 type=i32] |
| 29 | store i32 %tmp10, i32* %tmp3 |
| 30 | br i1 %tmp8, label %bb11, label %bb4 |
| 31 | |
| 32 | bb11: ; preds = %bb4 |
| 33 | %tmp12 = load i32* %tmp, align 4 ; [#uses=1 type=i32] |
| 34 | ret i32 %tmp12 |
| 35 | } |
| 36 | |
| 37 | |