1 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux | FileCheck %s
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"
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.
11 ; CHECK: subq{{.*}}rsp
13 define i32 @main(i32 %arg, i8** %arg1) nounwind {
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
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
33 %tmp12 = load i32* %tmp, align 4 ; [#uses=1 type=i32]