1 ; RUN: llc < %s | FileCheck %s
3 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
4 target triple = "i686-pc-windows-msvc"
6 define void @try_except() #0 personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
8 %__exception_code = alloca i32, align 4
9 call void (...) @llvm.localescape(i32* %__exception_code)
10 invoke void @f(i32 1) #3
11 to label %invoke.cont unwind label %catch.dispatch
13 catch.dispatch: ; preds = %entry
14 %0 = catchpad [i8* bitcast (i32 ()* @try_except_filter_catchall to i8*)] to label %__except.ret unwind label %catchendblock
16 __except.ret: ; preds = %catch.dispatch
17 catchret %0 to label %__except
19 __except: ; preds = %__except.ret
23 __try.cont: ; preds = %__except, %invoke.cont
27 catchendblock: ; preds = %catch.dispatch
28 catchendpad unwind to caller
30 invoke.cont: ; preds = %entry
34 ; CHECK-LABEL: _try_except:
36 ; CHECK: movl $0, -[[state:[0-9]+]](%ebp)
37 ; CHECK: movl $1, (%esp)
39 ; CHECK: movl $-1, -[[state]](%ebp)
40 ; CHECK: movl $3, (%esp)
45 ; CHECK: movl $-1, -[[state]](%ebp)
46 ; CHECK: movl $2, (%esp)
49 ; CHECK: .section .xdata,"dr"
50 ; CHECK: L__ehtable$try_except:
52 ; CHECK: .long _try_except_filter_catchall
55 define internal i32 @try_except_filter_catchall() #0 {
57 %0 = call i8* @llvm.frameaddress(i32 1)
58 %1 = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void ()* @try_except to i8*), i8* %0)
59 %2 = call i8* @llvm.localrecover(i8* bitcast (void ()* @try_except to i8*), i8* %1, i32 0)
60 %__exception_code = bitcast i8* %2 to i32*
61 %3 = getelementptr inbounds i8, i8* %0, i32 -20
62 %4 = bitcast i8* %3 to i8**
63 %5 = load i8*, i8** %4, align 4
64 %6 = bitcast i8* %5 to { i32*, i8* }*
65 %7 = getelementptr inbounds { i32*, i8* }, { i32*, i8* }* %6, i32 0, i32 0
66 %8 = load i32*, i32** %7, align 4
67 %9 = load i32, i32* %8, align 4
68 store i32 %9, i32* %__exception_code, align 4
72 define void @nested_exceptions() #0 personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
74 %__exception_code = alloca i32, align 4
75 call void (...) @llvm.localescape(i32* %__exception_code)
76 invoke void @crash() #3
77 to label %__try.cont unwind label %catch.dispatch
79 catch.dispatch: ; preds = %entry
80 %0 = catchpad [i8* bitcast (i32 ()* @nested_exceptions_filter_catchall to i8*)] to label %__except.ret unwind label %catchendblock
82 __except.ret: ; preds = %catch.dispatch
83 catchret %0 to label %__try.cont
85 __try.cont: ; preds = %entry, %__except.ret
86 invoke void @crash() #3
87 to label %__try.cont.9 unwind label %catch.dispatch.5
89 catch.dispatch.5: ; preds = %__try.cont
90 %1 = catchpad [i8* bitcast (i32 ()* @nested_exceptions_filter_catchall to i8*)] to label %__except.ret.7 unwind label %catchendblock.6
92 __except.ret.7: ; preds = %catch.dispatch.5
93 catchret %1 to label %__try.cont.9
95 __try.cont.9: ; preds = %__try.cont, %__except.ret.7
96 invoke void @crash() #3
97 to label %__try.cont.15 unwind label %catch.dispatch.11
99 catch.dispatch.11: ; preds = %catchendblock, %catchendblock.6, %__try.cont.9
100 %2 = catchpad [i8* bitcast (i32 ()* @nested_exceptions_filter_catchall to i8*)] to label %__except.ret.13 unwind label %catchendblock.12
102 __except.ret.13: ; preds = %catch.dispatch.11
103 catchret %2 to label %__try.cont.15
105 __try.cont.15: ; preds = %__try.cont.9, %__except.ret.13
106 invoke void @crash() #3
107 to label %__try.cont.35 unwind label %catch.dispatch.17
109 catch.dispatch.17: ; preds = %catchendblock.12, %__try.cont.15
110 %3 = catchpad [i8* bitcast (i32 ()* @nested_exceptions_filter_catchall to i8*)] to label %__except.ret.19 unwind label %catchendblock.18
112 __except.ret.19: ; preds = %catch.dispatch.17
113 catchret %3 to label %__except.20
115 __except.20: ; preds = %__except.ret.19
116 invoke void @crash() #3
117 to label %__try.cont.27 unwind label %catch.dispatch.23
119 catch.dispatch.23: ; preds = %__except.20
120 %4 = catchpad [i8* bitcast (i32 ()* @nested_exceptions_filter_catchall to i8*)] to label %__except.ret.25 unwind label %catchendblock.24
122 __except.ret.25: ; preds = %catch.dispatch.23
123 catchret %4 to label %__try.cont.27
125 __try.cont.27: ; preds = %__except.20, %__except.ret.25
126 invoke void @crash() #3
127 to label %__try.cont.35 unwind label %catch.dispatch.30
129 catch.dispatch.30: ; preds = %__try.cont.27
130 %5 = catchpad [i8* bitcast (i32 ()* @nested_exceptions_filter_catchall to i8*)] to label %__except.ret.32 unwind label %catchendblock.31
132 __except.ret.32: ; preds = %catch.dispatch.30
133 catchret %5 to label %__try.cont.35
135 __try.cont.35: ; preds = %__try.cont.15, %__try.cont.27, %__except.ret.32
138 catchendblock.31: ; preds = %catch.dispatch.30
139 catchendpad unwind to caller
141 catchendblock.24: ; preds = %catch.dispatch.23
142 catchendpad unwind to caller
144 catchendblock.18: ; preds = %catch.dispatch.17
145 catchendpad unwind to caller
147 catchendblock.12: ; preds = %catch.dispatch.11
148 catchendpad unwind label %catch.dispatch.17
150 catchendblock.6: ; preds = %catch.dispatch.5
151 catchendpad unwind label %catch.dispatch.11
153 catchendblock: ; preds = %catch.dispatch
154 catchendpad unwind label %catch.dispatch.11
157 ; This table is equivalent to the one produced by MSVC, even if it isn't in
158 ; quite the same order.
160 ; CHECK-LABEL: _nested_exceptions:
161 ; CHECK: L__ehtable$nested_exceptions:
163 ; CHECK: .long _nested_exceptions_filter_catchall
166 ; CHECK: .long _nested_exceptions_filter_catchall
169 ; CHECK: .long _nested_exceptions_filter_catchall
172 ; CHECK: .long _nested_exceptions_filter_catchall
175 ; CHECK: .long _nested_exceptions_filter_catchall
178 ; CHECK: .long _nested_exceptions_filter_catchall
181 declare void @crash() #0
183 define internal i32 @nested_exceptions_filter_catchall() #0 {
185 %0 = call i8* @llvm.frameaddress(i32 1)
186 %1 = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void ()* @nested_exceptions to i8*), i8* %0)
187 %2 = call i8* @llvm.localrecover(i8* bitcast (void ()* @nested_exceptions to i8*), i8* %1, i32 0)
188 %__exception_code3 = bitcast i8* %2 to i32*
189 %3 = getelementptr inbounds i8, i8* %0, i32 -20
190 %4 = bitcast i8* %3 to i8**
191 %5 = load i8*, i8** %4, align 4
192 %6 = bitcast i8* %5 to { i32*, i8* }*
193 %7 = getelementptr inbounds { i32*, i8* }, { i32*, i8* }* %6, i32 0, i32 0
194 %8 = load i32*, i32** %7, align 4
195 %9 = load i32, i32* %8, align 4
196 store i32 %9, i32* %__exception_code3, align 4
200 define void @code_in_catchpad() #0 personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
202 invoke void @f(i32 1) #3
203 to label %__except unwind label %catch.dispatch
205 catch.dispatch: ; preds = %entry
206 %0 = catchpad [i8* bitcast (i32 ()* @try_except_filter_catchall to i8*)] to label %__except.ret unwind label %catchendblock
208 __except.ret: ; preds = %catch.dispatch
210 catchret %0 to label %__except
215 catchendblock: ; preds = %catch.dispatch
216 catchendpad unwind to caller
219 ; CHECK-LABEL: _code_in_catchpad:
220 ; CHECK: # %catch.dispatch
221 ; CHECK-NEXT: movl -24(%ebp), %esp
222 ; CHECK-NEXT: addl $12, %ebp
223 ; CHECK: # %__except.ret
224 ; CHECK-NEXT: movl $-1, -16(%ebp)
225 ; CHECK-NEXT: movl $2, (%esp)
226 ; CHECK-NEXT: calll _f
229 ; Function Attrs: nounwind readnone
230 declare i8* @llvm.frameaddress(i32) #1
232 ; Function Attrs: nounwind readnone
233 declare i8* @llvm.x86.seh.recoverfp(i8*, i8*) #1
235 ; Function Attrs: nounwind readnone
236 declare i8* @llvm.localrecover(i8*, i8*, i32) #1
238 declare void @f(i32) #0
240 declare i32 @_except_handler3(...)
242 ; Function Attrs: nounwind
243 declare void @llvm.localescape(...) #2
245 attributes #0 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
246 attributes #1 = { nounwind readnone }
247 attributes #2 = { nounwind }
248 attributes #3 = { noinline }