forked from OSchip/llvm-project
111 lines
4.0 KiB
LLVM
111 lines
4.0 KiB
LLVM
; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
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; This test is based on the following source, built with -O2
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;
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; void f() {
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; try {
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; g();
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; try {
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; throw;
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; } catch (int) {
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; }
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; } catch (...) {
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; }
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; }
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;
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; ModuleID = '<stdin>'
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc"
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%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
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%eh.CatchHandlerType = type { i32, i8* }
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%eh.ThrowInfo = type { i32, i32, i32, i32 }
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$"\01??_R0H@8" = comdat any
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@"\01??_7type_info@@6B@" = external constant i8*
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@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
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@llvm.eh.handlertype.H.0 = private unnamed_addr constant %eh.CatchHandlerType { i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) }, section "llvm.metadata"
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; CHECK-LABEL: define void @"\01?f@@YAXXZ"()
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; CHECK: entry:
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; CHECK: call void (...) @llvm.localescape()
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; CHECK: invoke void @"\01?g@@YAXXZ"()
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; Function Attrs: nounwind
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define void @"\01?f@@YAXXZ"() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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invoke void @"\01?g@@YAXXZ"()
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to label %invoke.cont unwind label %lpad
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; CHECK-LABEL: invoke.cont:
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; CHECK: invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null)
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; CHECK: to label %unreachable unwind label %[[LPAD1_LABEL:lpad[0-9]+]]
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invoke.cont: ; preds = %entry
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invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) #4
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to label %unreachable unwind label %lpad1
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 }
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catch i8* null
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%1 = extractvalue { i8*, i32 } %0, 0
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br label %catch2
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; Note: Even though this landing pad has two catch clauses, it only has one action because both
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; handlers do the same thing.
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; CHECK: [[LPAD1_LABEL]]:
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0
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; CHECK-NEXT: catch i8* null
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; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?f@@YAXXZ.catch")
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; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont4]
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lpad1: ; preds = %invoke.cont
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%2 = landingpad { i8*, i32 }
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catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0
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catch i8* null
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%3 = extractvalue { i8*, i32 } %2, 0
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br label %catch2
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catch2: ; preds = %lpad1, %lpad
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%exn.slot.0 = phi i8* [ %3, %lpad1 ], [ %1, %lpad ]
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tail call void @llvm.eh.begincatch(i8* %exn.slot.0, i8* null) #3
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tail call void @llvm.eh.endcatch() #3
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br label %try.cont4
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try.cont4: ; preds = %catch, %catch2
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ret void
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unreachable: ; preds = %invoke.cont
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unreachable
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; CHECK: }
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}
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declare void @"\01?g@@YAXXZ"() #1
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declare i32 @__CxxFrameHandler3(...)
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declare void @_CxxThrowException(i8*, %eh.ThrowInfo*)
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*) #2
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; Function Attrs: nounwind
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declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3
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; Function Attrs: nounwind
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declare void @llvm.eh.endcatch() #3
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attributes #0 = { nounwind "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" }
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attributes #1 = { "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" }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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attributes #4 = { noreturn }
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!llvm.ident = !{!0}
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!0 = !{!"clang version 3.7.0 (trunk 235112) (llvm/trunk 235121)"}
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