1 ; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s
3 ; 32-bit catch-all has to use a filter function because that's how it saves the
6 @str = linkonce_odr unnamed_addr constant [27 x i8] c"GetExceptionCode(): 0x%lx\0A\00", align 1
8 declare i32 @_except_handler3(...)
10 declare i32 @printf(i8* nocapture readonly, ...) nounwind
11 declare i32 @llvm.eh.typeid.for(i8*)
12 declare i8* @llvm.frameaddress(i32)
13 declare i8* @llvm.localrecover(i8*, i8*, i32)
14 declare void @llvm.localescape(...)
15 declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
17 define i32 @main() personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
19 ; The EH code allocation is overaligned, triggering realignment.
20 %__exceptioncode = alloca i32, align 8
21 call void (...) @llvm.localescape(i32* %__exceptioncode)
22 invoke void @crash() #5
23 to label %__try.cont unwind label %lpad
25 lpad: ; preds = %entry
26 %0 = landingpad { i8*, i32 }
27 catch i8* bitcast (i32 ()* @"filt$main" to i8*)
28 %1 = extractvalue { i8*, i32 } %0, 1
29 %2 = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 ()* @"filt$main" to i8*)) #4
30 %matches = icmp eq i32 %1, %2
31 br i1 %matches, label %__except, label %eh.resume
33 __except: ; preds = %lpad
34 %3 = load i32, i32* %__exceptioncode, align 4
35 %call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @str, i32 0, i32 0), i32 %3) #4
38 __try.cont: ; preds = %entry, %__except
41 eh.resume: ; preds = %lpad
42 resume { i8*, i32 } %0
45 define internal i32 @"filt$main"() {
47 %ebp = tail call i8* @llvm.frameaddress(i32 1)
48 %parentfp = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
49 %code.i8 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %parentfp, i32 0)
50 %__exceptioncode = bitcast i8* %code.i8 to i32*
51 %info.addr = getelementptr inbounds i8, i8* %ebp, i32 -20
52 %0 = bitcast i8* %info.addr to i32***
53 %1 = load i32**, i32*** %0, align 4
54 %2 = load i32*, i32** %1, align 4
55 %3 = load i32, i32* %2, align 4
56 store i32 %3, i32* %__exceptioncode, align 4
60 ; Check that we can get the exception code from eax to the printf.
63 ; CHECK: Lmain$frame_escape_0 = [[code_offs:[-0-9]+]]
64 ; CHECK: Lmain$frame_escape_1 = [[reg_offs:[-0-9]+]]
65 ; CHECK: movl %esp, [[reg_offs]](%esi)
66 ; CHECK: movl $L__ehtable$main,
68 ; CHECK: movl $0, 40(%esi)
71 ; CHECK: # Block address taken
73 ; CHECK: movl -24(%ebp), %esp
75 ; CHECK: movl $Lmain$parent_frame_offset, %eax
77 ; CHECK: leal -24(%ebp,%eax), %esi
79 ; CHECK: movl 12(%esi), %ebp # 4-byte Reload
81 ; CHECK: movl [[code_offs]](%esi), %[[code:[a-z]+]]
82 ; CHECK: movl $-1, 40(%esi)
83 ; CHECK-DAG: movl %[[code]], 4(%esp)
84 ; CHECK-DAG: movl $_str, (%esp)
85 ; CHECK: calll _printf
87 ; CHECK: .section .xdata,"dr"
88 ; CHECK: Lmain$parent_frame_offset = Lmain$frame_escape_1
89 ; CHECK: L__ehtable$main
90 ; CHECK-NEXT: .long -1
91 ; CHECK-NEXT: .long _filt$main
92 ; CHECK-NEXT: .long Ltmp{{[0-9]+}}
94 ; CHECK-LABEL: _filt$main:
96 ; CHECK: movl %esp, %ebp
97 ; CHECK: movl (%ebp), %[[oldebp:[a-z]+]]
98 ; CHECK: movl -20(%[[oldebp]]), %[[ehinfo:[a-z]+]]
99 ; CHECK: movl (%[[ehinfo]]), %[[ehrec:[a-z]+]]
100 ; CHECK: movl (%[[ehrec]]), %[[ehcode:[a-z]+]]
101 ; CHECK: movl %[[ehcode]], {{.*}}(%{{.*}})