1 ; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s --check-prefix=X86
2 ; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s --check-prefix=X64
4 declare void @llvm.frameescape(...)
5 declare i8* @llvm.frameaddress(i32)
6 declare i8* @llvm.framerecover(i8*, i8*, i32)
7 declare i32 @printf(i8*, ...)
9 @str = internal constant [10 x i8] c"asdf: %d\0A\00"
11 define void @print_framealloc_from_fp(i8* %fp) {
12 %a.i8 = call i8* @llvm.framerecover(i8* bitcast (void()* @alloc_func to i8*), i8* %fp, i32 0)
13 %a = bitcast i8* %a.i8 to i32*
14 %a.val = load i32, i32* %a
15 call i32 (i8*, ...)* @printf(i8* getelementptr ([10 x i8], [10 x i8]* @str, i32 0, i32 0), i32 %a.val)
16 %b.i8 = call i8* @llvm.framerecover(i8* bitcast (void()* @alloc_func to i8*), i8* %fp, i32 1)
17 %b = bitcast i8* %b.i8 to i32*
18 %b.val = load i32, i32* %b
19 call i32 (i8*, ...)* @printf(i8* getelementptr ([10 x i8], [10 x i8]* @str, i32 0, i32 0), i32 %b.val)
24 ; X64-LABEL: print_framealloc_from_fp:
25 ; X64: movq %rcx, %[[parent_fp:[a-z]+]]
26 ; X64: movl .Lalloc_func$frame_escape_0(%[[parent_fp]]), %edx
27 ; X64: leaq {{.*}}(%rip), %[[str:[a-z]+]]
28 ; X64: movq %[[str]], %rcx
30 ; X64: movl .Lalloc_func$frame_escape_1(%[[parent_fp]]), %edx
31 ; X64: movq %[[str]], %rcx
33 ; X64: movl $42, .Lalloc_func$frame_escape_1(%[[parent_fp]])
36 ; X86-LABEL: print_framealloc_from_fp:
39 ; X86: movl 16(%esp), %esi
40 ; X86: movl _Lalloc_func$frame_escape_0(%esi), %eax
41 ; X86: movl %eax, 4(%esp)
42 ; X86: movl $_str, (%esp)
44 ; X86: movl _Lalloc_func$frame_escape_1(%esi), %eax
45 ; X86: movl %eax, 4(%esp)
46 ; X86: movl $_str, (%esp)
48 ; X86: movl $42, _Lalloc_func$frame_escape_1(%esi)
53 define void @alloc_func() {
56 call void (...)* @llvm.frameescape(i32* %a, i32* %b)
59 %fp = call i8* @llvm.frameaddress(i32 0)
60 call void @print_framealloc_from_fp(i8* %fp)
64 ; X64-LABEL: alloc_func:
66 ; X64: .seh_stackalloc 48
67 ; X64: leaq 48(%rsp), %rbp
68 ; X64: .seh_setframe 5, 48
69 ; X64: .Lalloc_func$frame_escape_0 = 44
70 ; X64: .Lalloc_func$frame_escape_1 = 40
71 ; X64: movl $42, -4(%rbp)
72 ; X64: movl $13, -8(%rbp)
73 ; X64: leaq -48(%rbp), %rcx
74 ; X64: callq print_framealloc_from_fp
77 ; X86-LABEL: alloc_func:
79 ; X86: movl %esp, %ebp
81 ; X86: Lalloc_func$frame_escape_0 = -4
82 ; X86: Lalloc_func$frame_escape_1 = -8
83 ; X86: movl $42, -4(%ebp)
84 ; X86: movl $13, -8(%ebp)
85 ; X86: movl %ebp, (%esp)
86 ; X86: calll _print_framealloc_from_fp
91 ; Helper to make this a complete program so it can be compiled and tested.
93 call void @alloc_func()
97 define void @alloc_func_no_frameaddr() {
100 call void (...)* @llvm.frameescape(i32* %a, i32* %b)
101 store i32 42, i32* %a
102 store i32 13, i32* %b
103 call void @print_framealloc_from_fp(i8* null)
107 ; X64-LABEL: alloc_func_no_frameaddr:
108 ; X64: subq $40, %rsp
109 ; X64: .seh_stackalloc 40
110 ; X64: .seh_endprologue
111 ; X64: .Lalloc_func_no_frameaddr$frame_escape_0 = 36
112 ; X64: .Lalloc_func_no_frameaddr$frame_escape_1 = 32
113 ; X64: movl $42, 36(%rsp)
114 ; X64: movl $13, 32(%rsp)
115 ; X64: xorl %ecx, %ecx
116 ; X64: callq print_framealloc_from_fp
117 ; X64: addq $40, %rsp