1 ; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
3 ; This test is based on the following code:
11 ; void does_not_throw(int i);
12 ; void dump(int *, int, SomeData&);
15 ; int NumExceptions = 0;
16 ; int ExceptionVal[10];
17 ; SomeData Data = { 0, 0 };
19 ; for (int i = 0; i < 10; ++i) {
25 ; ExceptionVal[NumExceptions] = e;
32 ; does_not_throw(NumExceptions);
34 ; dump(ExceptionVal, NumExceptions, Data);
37 ; ModuleID = 'cppeh-frame-vars.cpp'
38 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
39 target triple = "x86_64-pc-windows-msvc"
41 %rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
42 %struct.SomeData = type { i32, i32 }
44 ; This structure should be declared for the frame allocation block.
45 ; CHECK: %"struct.\01?test@@YAXXZ.ehdata" = type { i32, i8*, i32, i32, [10 x i32], i32, %struct.SomeData }
47 $"\01??_R0H@8" = comdat any
49 @"\01??_7type_info@@6B@" = external constant i8*
50 @"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
52 ; The function entry should be rewritten like this.
53 ; CHECK: define void @"\01?test@@YAXXZ"() #0 {
55 ; CHECK: %frame.alloc = call i8* @llvm.frameallocate(i32 80)
56 ; CHECK: %eh.data = bitcast i8* %frame.alloc to %"struct.\01?test@@YAXXZ.ehdata"*
57 ; CHECK-NOT: %NumExceptions = alloca i32, align 4
58 ; CHECK: %NumExceptions = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 3
59 ; CHECK-NOT: %ExceptionVal = alloca [10 x i32], align 16
60 ; CHECK: %ExceptionVal = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 4
61 ; CHECK-NOT: %Data = alloca %struct.SomeData, align 4
62 ; CHECK: %Data = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 6
63 ; CHECK: %i = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 5
64 ; CHECK: %exn.slot = alloca i8*
65 ; CHECK: %ehselector.slot = alloca i32
66 ; CHECK-NOT: %e = alloca i32, align 4
67 ; CHECK: %e = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 2
69 ; Function Attrs: uwtable
70 define void @"\01?test@@YAXXZ"() #0 {
72 %NumExceptions = alloca i32, align 4
73 %ExceptionVal = alloca [10 x i32], align 16
74 %Data = alloca %struct.SomeData, align 4
75 %i = alloca i32, align 4
76 %exn.slot = alloca i8*
77 %ehselector.slot = alloca i32
78 %e = alloca i32, align 4
79 store i32 0, i32* %NumExceptions, align 4
80 %0 = bitcast %struct.SomeData* %Data to i8*
81 call void @llvm.memset(i8* %0, i8 0, i64 8, i32 4, i1 false)
82 store i32 0, i32* %i, align 4
85 for.cond: ; preds = %for.inc, %entry
86 %1 = load i32* %i, align 4
87 %cmp = icmp slt i32 %1, 10
88 br i1 %cmp, label %for.body, label %for.end
90 for.body: ; preds = %for.cond
91 invoke void @"\01?may_throw@@YAXXZ"()
92 to label %invoke.cont unwind label %lpad
94 invoke.cont: ; preds = %for.body
95 %2 = load i32* %i, align 4
96 %a = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0
97 %3 = load i32* %a, align 4
98 %add = add nsw i32 %3, %2
99 store i32 %add, i32* %a, align 4
102 lpad: ; preds = %for.body
103 %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
104 catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
105 %5 = extractvalue { i8*, i32 } %4, 0
106 store i8* %5, i8** %exn.slot
107 %6 = extractvalue { i8*, i32 } %4, 1
108 store i32 %6, i32* %ehselector.slot
109 br label %catch.dispatch
111 catch.dispatch: ; preds = %lpad
112 %sel = load i32* %ehselector.slot
113 %7 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #1
114 %matches = icmp eq i32 %sel, %7
115 br i1 %matches, label %catch, label %eh.resume
117 catch: ; preds = %catch.dispatch
118 %exn = load i8** %exn.slot
119 %8 = call i8* @llvm.eh.begincatch(i8* %exn) #1
120 %9 = bitcast i8* %8 to i32*
121 %10 = load i32* %9, align 4
122 store i32 %10, i32* %e, align 4
123 %11 = load i32* %e, align 4
124 %12 = load i32* %NumExceptions, align 4
125 %idxprom = sext i32 %12 to i64
126 %arrayidx = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i64 %idxprom
127 store i32 %11, i32* %arrayidx, align 4
128 %13 = load i32* %NumExceptions, align 4
129 %inc = add nsw i32 %13, 1
130 store i32 %inc, i32* %NumExceptions, align 4
131 %14 = load i32* %e, align 4
132 %15 = load i32* %i, align 4
133 %cmp1 = icmp eq i32 %14, %15
134 br i1 %cmp1, label %if.then, label %if.else
136 if.then: ; preds = %catch
137 %16 = load i32* %e, align 4
138 %b = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 1
139 %17 = load i32* %b, align 4
140 %add2 = add nsw i32 %17, %16
141 store i32 %add2, i32* %b, align 4
144 if.else: ; preds = %catch
145 %18 = load i32* %e, align 4
146 %a3 = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0
147 %19 = load i32* %a3, align 4
148 %add4 = add nsw i32 %19, %18
149 store i32 %add4, i32* %a3, align 4
152 if.end: ; preds = %if.else, %if.then
153 call void @llvm.eh.endcatch() #1
156 try.cont: ; preds = %if.end, %invoke.cont
157 %20 = load i32* %NumExceptions, align 4
158 call void @"\01?does_not_throw@@YAXH@Z"(i32 %20)
161 for.inc: ; preds = %try.cont
162 %21 = load i32* %i, align 4
163 %inc5 = add nsw i32 %21, 1
164 store i32 %inc5, i32* %i, align 4
167 for.end: ; preds = %for.cond
168 %22 = load i32* %NumExceptions, align 4
169 %arraydecay = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i32 0
170 call void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32* %arraydecay, i32 %22, %struct.SomeData* dereferenceable(8) %Data)
173 eh.resume: ; preds = %catch.dispatch
174 %exn6 = load i8** %exn.slot
175 %sel7 = load i32* %ehselector.slot
176 %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn6, 0
177 %lpad.val8 = insertvalue { i8*, i32 } %lpad.val, i32 %sel7, 1
178 resume { i8*, i32 } %lpad.val8
181 ; The following catch handler should be outlined.
182 ; CHECK: define i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) {
183 ; CHECK: catch.entry:
184 ; CHECK: %eh.alloc = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1)
185 ; CHECK: %eh.data = bitcast i8* %eh.alloc to %"struct.\01?test@@YAXXZ.ehdata"*
186 ; CHECK: %eh.obj.ptr = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 1
187 ; CHECK: %eh.obj = load i8** %eh.obj.ptr
188 ; CHECK: %e = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 2
189 ; CHECK: %NumExceptions = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 3
190 ; CHECK: %ExceptionVal = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 4
191 ; CHECK: %i = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 5
192 ; CHECK: %Data = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 6
193 ; CHECK: %2 = bitcast i8* %eh.obj to i32*
194 ; CHECK: %3 = load i32* %2, align 4
195 ; CHECK: store i32 %3, i32* %e, align 4
196 ; CHECK: %4 = load i32* %e, align 4
197 ; CHECK: %5 = load i32* %NumExceptions, align 4
198 ; CHECK: %idxprom = sext i32 %5 to i64
199 ; CHECK: %arrayidx = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i64 %idxprom
200 ; CHECK: store i32 %4, i32* %arrayidx, align 4
201 ; CHECK: %6 = load i32* %NumExceptions, align 4
202 ; CHECK: %inc = add nsw i32 %6, 1
203 ; CHECK: store i32 %inc, i32* %NumExceptions, align 4
204 ; CHECK: %7 = load i32* %e, align 4
205 ; CHECK: %8 = load i32* %i, align 4
206 ; CHECK: %cmp1 = icmp eq i32 %7, %8
207 ; CHECK: br i1 %cmp1, label %if.then, label %if.else
209 ; CHECK: if.then: ; preds = %catch.entry
210 ; CHECK: %9 = load i32* %e, align 4
211 ; CHECK: %b = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 1
212 ; CHECK: %10 = load i32* %b, align 4
213 ; CHECK: %add2 = add nsw i32 %10, %9
214 ; CHECK: store i32 %add2, i32* %b, align 4
215 ; CHECK: br label %if.end
217 ; CHECK: if.else: ; preds = %catch.entry
218 ; CHECK: %11 = load i32* %e, align 4
219 ; CHECK: %a3 = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0
220 ; CHECK: %12 = load i32* %a3, align 4
221 ; CHECK: %add4 = add nsw i32 %12, %11
222 ; CHECK: store i32 %add4, i32* %a3, align 4
223 ; CHECK: br label %if.end
225 ; CHECK: if.end: ; preds = %if.else, %if.then
226 ; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont)
234 ; Function Attrs: nounwind
235 declare void @llvm.memset(i8* nocapture, i8, i64, i32, i1) #1
237 declare void @"\01?may_throw@@YAXXZ"() #2
239 declare i32 @__CxxFrameHandler3(...)
241 ; Function Attrs: nounwind readnone
242 declare i32 @llvm.eh.typeid.for(i8*) #3
244 declare i8* @llvm.eh.begincatch(i8*)
246 declare void @llvm.eh.endcatch()
248 declare void @"\01?does_not_throw@@YAXH@Z"(i32) #2
250 declare void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32*, i32, %struct.SomeData* dereferenceable(8)) #2
252 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
253 attributes #1 = { nounwind }
254 attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
255 attributes #3 = { nounwind readnone }
257 !llvm.module.flags = !{!0}
260 !0 = !{i32 1, !"PIC Level", i32 2}
261 !1 = !{!"clang version 3.7.0 (trunk 228868)"}