1; RUN: llc -stack-symbol-ordering=0 -mtriple=i686-windows-msvc < %s | FileCheck %s
2
3; 32-bit catch-all has to use a filter function because that's how it saves the
4; exception code.
5
6@str = linkonce_odr unnamed_addr constant [27 x i8] c"GetExceptionCode(): 0x%lx\0A\00", align 1
7
8declare i32 @_except_handler3(...)
9declare void @crash()
10declare i32 @printf(i8* nocapture readonly, ...) nounwind
11declare i32 @llvm.eh.typeid.for(i8*)
12declare i8* @llvm.frameaddress(i32)
13declare i8* @llvm.localrecover(i8*, i8*, i32)
14declare void @llvm.localescape(...)
15declare i8* @llvm.eh.recoverfp(i8*, i8*)
16
17define i32 @main() personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
18entry:
19  %__exceptioncode = alloca i32, align 4
20  call void (...) @llvm.localescape(i32* %__exceptioncode)
21  invoke void @crash() #5
22          to label %__try.cont unwind label %lpad
23
24lpad:                                             ; preds = %entry
25  %cs1 = catchswitch within none [label %__except] unwind to caller
26
27__except:                                         ; preds = %lpad
28  %p = catchpad within %cs1 [i8* bitcast (i32 ()* @"filt$main" to i8*)]
29  %code = load i32, i32* %__exceptioncode, align 4
30  %call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @str, i32 0, i32 0), i32 %code) #4 [ "funclet"(token %p) ]
31  catchret from %p to label %__try.cont
32
33__try.cont:                                       ; preds = %entry, %__except
34  ret i32 0
35}
36
37define internal i32 @"filt$main"() {
38entry:
39  %ebp = tail call i8* @llvm.frameaddress(i32 1)
40  %parentfp = tail call i8* @llvm.eh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
41  %code.i8 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %parentfp, i32 0)
42  %__exceptioncode = bitcast i8* %code.i8 to i32*
43  %info.addr = getelementptr inbounds i8, i8* %ebp, i32 -20
44  %0 = bitcast i8* %info.addr to i32***
45  %1 = load i32**, i32*** %0, align 4
46  %2 = load i32*, i32** %1, align 4
47  %3 = load i32, i32* %2, align 4
48  store i32 %3, i32* %__exceptioncode, align 4
49  ret i32 1
50}
51
52; Check that we can get the exception code from eax to the printf.
53
54; CHECK-LABEL: _main:
55; CHECK: pushl %ebp
56; CHECK: movl %esp, %ebp
57;       Ensure that we push *all* the CSRs, since they are clobbered by the
58;       __except block.
59; CHECK: pushl %ebx
60; CHECK: pushl %edi
61; CHECK: pushl %esi
62
63; CHECK: .set Lmain$frame_escape_0, [[code_offs:[-0-9]+]]
64; CHECK: movl %esp, [[reg_offs:[-0-9]+]](%ebp)
65; CHECK: movl $L__ehtable$main,
66;       EH state 0
67; CHECK: movl $0, -16(%ebp)
68; CHECK: calll _crash
69; CHECK: popl %esi
70; CHECK: popl %edi
71; CHECK: popl %ebx
72; CHECK: retl
73; CHECK: LBB0_[[lpbb:[0-9]+]]: # %__except{{$}}
74;       stackrestore
75; CHECK: movl -24(%ebp), %esp
76;       EH state -1
77; CHECK: movl [[code_offs]](%ebp), %[[code:[a-z]+]]
78; CHECK: pushl %[[code]]
79; CHECK: pushl $_str
80; CHECK: calll _printf
81
82; CHECK: .section .xdata,"dr"
83; CHECK: .set Lmain$parent_frame_offset, [[reg_offs]]
84; CHECK: .p2align 2
85; CHECK: L__ehtable$main
86; CHECK-NEXT: .long -1
87; CHECK-NEXT: .long _filt$main
88; CHECK-NEXT: .long LBB0_[[lpbb]]
89
90; CHECK-LABEL: _filt$main:
91; CHECK: pushl %ebp
92; CHECK: movl %esp, %ebp
93; CHECK: movl (%ebp), %[[oldebp:[a-z]+]]
94; CHECK: movl -20(%[[oldebp]]), %[[ehinfo:[a-z]+]]
95; CHECK: movl (%[[ehinfo]]), %[[ehrec:[a-z]+]]
96; CHECK: movl (%[[ehrec]]), %[[ehcode:[a-z]+]]
97; CHECK: movl %[[ehcode]], {{.*}}(%{{.*}})
98