1 // REQUIRES: x86-registered-target
2 // RUN: %clang_cc1 %s -triple i386-apple-darwin10 -fasm-blocks -emit-llvm -o - | opt -strip -S | FileCheck %s
3 
4 // Some test cases for MS inline asm support from Mozilla code base.
5 
6 void invoke(void* that, unsigned methodIndex,
7             unsigned paramCount, void* params)
8 {
9 // CHECK: @invoke
10 // CHECK: %5 = alloca i8*, align 4
11 // CHECK: %6 = alloca i32, align 4
12 // CHECK: %7 = alloca i32, align 4
13 // CHECK: %8 = alloca i8*, align 4
14 // CHECK: store i8* %0, i8** %5, align 4
15 // CHECK: store i32 %1, i32* %6, align 4
16 // CHECK: store i32 %2, i32* %7, align 4
17 // CHECK: store i8* %3, i8** %8, align 4
18 // CHECK: call void asm sideeffect inteldialect
19 // CHECK: mov edx,dword ptr $1
20 // CHECK: test edx,edx
21 // CHECK: jz noparams
22 // CHECK: mov eax,edx
23 // CHECK: shl eax,$$3
24 // CHECK: sub esp,eax
25 // CHECK: mov ecx,esp
26 // CHECK: push dword ptr $0
27 // CHECK: call invoke_copy_to_stack
28 // CHECK: noparams:
29 // CHECK: mov ecx,dword ptr $2
30 // CHECK: push ecx
31 // CHECK: mov edx,[ecx]
32 // CHECK: mov eax,dword ptr $3
33 // CHECK: call dword ptr[edx+eax*$$4]
34 // CHECK: mov esp,ebp
35 // CHECK: pop ebp
36 // CHECK: ret
37 // CHECK: "=*m,*m,*m,*m,~{eax},~{ebp},~{ecx},~{edx},~{flags},~{esp},~{dirflag},~{fpsr},~{flags}"
38 // CHECK: (i8** %8, i32* %7, i8** %5, i32* %6)
39 // CHECK: ret void
40     __asm {
41         mov     edx,paramCount
42         test    edx,edx
43         jz      noparams
44         mov     eax,edx
45         shl     eax,3
46         sub     esp,eax
47         mov     ecx,esp
48         push    params
49         call    invoke_copy_to_stack
50 noparams:
51         mov     ecx,that
52         push    ecx
53         mov     edx,[ecx]
54         mov     eax,methodIndex
55         call    dword ptr[edx+eax*4]
56         mov     esp,ebp
57         pop     ebp
58         ret
59     }
60 }
61 
62