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78 lines
2.2 KiB
LLVM
78 lines
2.2 KiB
LLVM
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; RUN: opt -simplifycfg -S < %s | FileCheck %s
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; <rdar://problem/13360379>
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@_ZTVN10__cxxabiv117__class_type_infoE = external global i8*
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@_ZTS13TestException = linkonce_odr constant [16 x i8] c"13TestException\00"
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@_ZTI13TestException = linkonce_odr unnamed_addr constant { i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8** @_ZTVN10__cxxabiv117__class_type_infoE, i64 2) to i8*), i8* getelementptr inbounds ([16 x i8]* @_ZTS13TestException, i32 0, i32 0) }
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define void @throw(i32 %n) #0 {
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entry:
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%exception = call i8* @__cxa_allocate_exception(i64 1) #4
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call void @__cxa_throw(i8* %exception, i8* bitcast ({ i8*, i8* }* @_ZTI13TestException to i8*), i8* null) #2
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unreachable
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}
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define void @func() #0 {
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entry:
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; CHECK: func()
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; CHECK: invoke void @throw
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; CHECK-NOT: call void @throw
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invoke void @throw(i32 42) #0
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to label %exit unwind label %lpad
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lpad:
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%tmp0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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cleanup
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resume { i8*, i32 } %tmp0
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exit:
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invoke void @abort() #2
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to label %invoke.cont unwind label %lpad1
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invoke.cont:
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unreachable
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lpad1:
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%tmp1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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catch i8* bitcast ({ i8*, i8* }* @_ZTI13TestException to i8*)
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%tmp2 = extractvalue { i8*, i32 } %tmp1, 1
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%tmp3 = call i32 @llvm.eh.typeid.for(i8* bitcast ({ i8*, i8* }* @_ZTI13TestException to i8*)) #4
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%matches = icmp eq i32 %tmp2, %tmp3
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br i1 %matches, label %catch, label %eh.resume
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catch:
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ret void
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eh.resume:
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resume { i8*, i32 } %tmp1
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}
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define linkonce_odr hidden void @__clang_call_terminate(i8*) #1 {
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%2 = call i8* @__cxa_begin_catch(i8* %0) #4
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call void @_ZSt9terminatev() #5
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unreachable
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}
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declare void @abort() #2
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declare i32 @llvm.eh.typeid.for(i8*) #3
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declare void @__cxa_end_catch()
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declare i8* @__cxa_allocate_exception(i64)
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declare i32 @__gxx_personality_v0(...)
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declare void @__cxa_throw(i8*, i8*, i8*)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @_ZSt9terminatev()
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attributes #0 = { ssp uwtable }
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attributes #1 = { noinline noreturn nounwind }
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attributes #2 = { noreturn }
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attributes #3 = { nounwind readnone }
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attributes #4 = { nounwind }
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attributes #5 = { noreturn nounwind }
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