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_copy_to_stack() {}
7 
8 void invoke(void* that, unsigned methodIndex,
9             unsigned paramCount, void* params)
10 {
11 // CHECK: @invoke
12 // CHECK: %5 = alloca i8*, align 4
13 // CHECK: %6 = alloca i32, align 4
14 // CHECK: %7 = alloca i32, align 4
15 // CHECK: %8 = alloca i8*, align 4
16 // CHECK: store i8* %0, i8** %5, align 4
17 // CHECK: store i32 %1, i32* %6, align 4
18 // CHECK: store i32 %2, i32* %7, align 4
19 // CHECK: store i8* %3, i8** %8, align 4
20 // CHECK: call void asm sideeffect inteldialect
21 // CHECK-SAME: mov edx,$1
22 // CHECK-SAME: test edx,edx
23 // CHECK-SAME: jz {{[^_]*}}__MSASMLABEL_.${:uid}__noparams
24 //                ^ Can't use {{.*}} here because the matching is greedy.
25 // CHECK-SAME: mov eax,edx
26 // CHECK-SAME: shl eax,$$3
27 // CHECK-SAME: sub esp,eax
28 // CHECK-SAME: mov ecx,esp
29 // CHECK-SAME: push $0
30 // CHECK-SAME: call dword ptr ${2:P}
31 // CHECK-SAME: {{.*}}__MSASMLABEL_.${:uid}__noparams:
32 // CHECK-SAME: mov ecx,$3
33 // CHECK-SAME: push ecx
34 // CHECK-SAME: mov edx,[ecx]
35 // CHECK-SAME: mov eax,$4
36 // CHECK-SAME: call dword ptr[edx + eax * $$4]
37 // CHECK-SAME: mov esp,ebp
38 // CHECK-SAME: pop ebp
39 // CHECK-SAME: ret
40 // CHECK: "=*m,*m,*m,*m,*m,~{eax},~{ebp},~{ecx},~{edx},~{flags},~{esp},~{dirflag},~{fpsr},~{flags}"
41 // CHECK: (i8** elementtype(i8*) %8, i32* elementtype(i32) %7, void (...)* elementtype(void (...)) bitcast (void ()* @invoke_copy_to_stack to void (...)*), i8** elementtype(i8*) %5, i32* elementtype(i32) %6)
42 // CHECK: ret void
43     __asm {
44         mov     edx,paramCount
45         test    edx,edx
46         jz      noparams
47         mov     eax,edx
48         shl     eax,3
49         sub     esp,eax
50         mov     ecx,esp
51         push    params
52         call    invoke_copy_to_stack
53 noparams:
54         mov     ecx,that
55         push    ecx
56         mov     edx,[ecx]
57         mov     eax,methodIndex
58         call    dword ptr[edx+eax*4]
59         mov     esp,ebp
60         pop     ebp
61         ret
62     }
63 }
64 
65