1 ; RUN: llc < %s -stack-symbol-ordering=0 -mtriple=i386-apple-darwin9 -mcpu=generic -regalloc=fast -optimize-regalloc=0 -no-x86-call-frame-opt | FileCheck %s
2 ; RUN: llc -O0 < %s -stack-symbol-ordering=0 -mtriple=i386-apple-darwin9 -mcpu=generic -regalloc=fast -no-x86-call-frame-opt | FileCheck %s
3 ; RUN: llc < %s -stack-symbol-ordering=0 -mtriple=i386-apple-darwin9 -mcpu=atom -regalloc=fast -optimize-regalloc=0 -no-x86-call-frame-opt | FileCheck -check-prefix=ATOM %s
4 ; CHECKed instructions should be the same with or without -O0 except on Intel Atom due to instruction scheduling.
6 @.str = private constant [12 x i8] c"x + y = %i\0A\00", align 1 ; <[12 x i8]*> [#uses=1]
8 define i32 @main() nounwind {
10 ; CHECK: movl 24(%esp), %eax
12 ; CHECK: movl %eax, 36(%esp)
14 ; CHECK: movl 28(%esp), %ebx
16 ; CHECK: movl %ebx, 40(%esp)
18 ; CHECK: addl %ebx, %eax
20 ; On Intel Atom the scheduler moves a movl instruction
21 ; used for the printf call to follow movl 24(%esp), %eax
22 ; ATOM: movl 24(%esp), %eax
24 ; ATOM: movl %eax, 36(%esp)
26 ; ATOM: movl 28(%esp), %ebx
28 ; ATOM: movl %ebx, 40(%esp)
30 ; ATOM: addl %ebx, %eax
32 %retval = alloca i32 ; <i32*> [#uses=2]
33 %"%ebx" = alloca i32 ; <i32*> [#uses=1]
34 %"%eax" = alloca i32 ; <i32*> [#uses=2]
35 %result = alloca i32 ; <i32*> [#uses=2]
36 %y = alloca i32 ; <i32*> [#uses=2]
37 %x = alloca i32 ; <i32*> [#uses=2]
38 %0 = alloca i32 ; <i32*> [#uses=2]
39 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
40 store i32 1, i32* %x, align 4
41 store i32 2, i32* %y, align 4
42 call void asm sideeffect alignstack "# top of block", "~{dirflag},~{fpsr},~{flags},~{edi},~{esi},~{edx},~{ecx},~{eax}"() nounwind
43 %asmtmp = call i32 asm sideeffect alignstack "movl $1, $0", "=={eax},*m,~{dirflag},~{fpsr},~{flags},~{memory}"(i32* %x) nounwind ; <i32> [#uses=1]
44 store i32 %asmtmp, i32* %"%eax"
45 %asmtmp1 = call i32 asm sideeffect alignstack "movl $1, $0", "=={ebx},*m,~{dirflag},~{fpsr},~{flags},~{memory}"(i32* %y) nounwind ; <i32> [#uses=1]
46 store i32 %asmtmp1, i32* %"%ebx"
47 %1 = call i32 asm "", "={bx}"() nounwind ; <i32> [#uses=1]
48 %2 = call i32 asm "", "={ax}"() nounwind ; <i32> [#uses=1]
49 %asmtmp2 = call i32 asm sideeffect alignstack "addl $1, $0", "=={eax},{ebx},{eax},~{dirflag},~{fpsr},~{flags},~{memory}"(i32 %1, i32 %2) nounwind ; <i32> [#uses=1]
50 store i32 %asmtmp2, i32* %"%eax"
51 %3 = call i32 asm "", "={ax}"() nounwind ; <i32> [#uses=1]
52 call void asm sideeffect alignstack "movl $0, $1", "{eax},*m,~{dirflag},~{fpsr},~{flags},~{memory}"(i32 %3, i32* %result) nounwind
53 %4 = load i32, i32* %result, align 4 ; <i32> [#uses=1]
54 %5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 %4) nounwind ; <i32> [#uses=0]
55 store i32 0, i32* %0, align 4
56 %6 = load i32, i32* %0, align 4 ; <i32> [#uses=1]
57 store i32 %6, i32* %retval, align 4
60 return: ; preds = %entry
61 %retval3 = load i32, i32* %retval ; <i32> [#uses=1]
65 declare i32 @printf(i8*, ...) nounwind