108 lines
4.0 KiB
LLVM
108 lines
4.0 KiB
LLVM
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; RUN: llc < %s | FileCheck %s
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; IR generated by the following C++ source with modifications to reuse the 'v'
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; alloca between catchpads:
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; extern "C" void maythrow();
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; int main() {
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; try {
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; try {
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; maythrow();
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; } catch (int v) {
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; maythrow();
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; }
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; } catch (int v) {
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; maythrow();
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; }
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; return 0;
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; }
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; CHECK: $cppxdata$main:
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; CHECK-NEXT: .long 429065506 # MagicNumber
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; CHECK-NEXT: .long 4 # MaxState
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; CHECK-NEXT: .long ($stateUnwindMap$main)@IMGREL # UnwindMap
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; CHECK-NEXT: .long 2 # NumTryBlocks
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; CHECK-NEXT: .long ($tryMap$main)@IMGREL # TryBlockMap
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; CHECK-NEXT: .long 5 # IPMapEntries
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; CHECK-NEXT: .long ($ip2state$main)@IMGREL # IPToStateXData
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; CHECK-NEXT: .long 32 # UnwindHelp
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; CHECK-NEXT: .long 0 # ESTypeList
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; CHECK-NEXT: .long 1 # EHFlags
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; CHECK: $tryMap$main:
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; CHECK-NEXT: .long 1 # TryLow
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; CHECK-NEXT: .long 1 # TryHigh
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; CHECK-NEXT: .long 2 # CatchHigh
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; CHECK-NEXT: .long 1 # NumCatches
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; CHECK-NEXT: .long ($handlerMap$0$main)@IMGREL # HandlerArray
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; CHECK-NEXT: .long 0 # TryLow
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; CHECK-NEXT: .long 2 # TryHigh
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; CHECK-NEXT: .long 3 # CatchHigh
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; CHECK-NEXT: .long 1 # NumCatches
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; CHECK-NEXT: .long ($handlerMap$1$main)@IMGREL # HandlerArray
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; CHECK: $handlerMap$0$main:
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; CHECK-NEXT: .long 0 # Adjectives
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; CHECK-NEXT: .long "??_R0H@8"@IMGREL # Type
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; CHECK-NEXT: .long [[v_offset:[0-9]+]] # CatchObjOffset
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; CHECK-NEXT: .long "?catch$2@?0?main@4HA"@IMGREL # Handler
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; CHECK-NEXT: .long {{.*}} # ParentFrameOffset
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; CHECK: $handlerMap$1$main:
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; CHECK-NEXT: .long 0 # Adjectives
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; CHECK-NEXT: .long "??_R0H@8"@IMGREL # Type
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; CHECK-NEXT: .long [[v_offset]] # CatchObjOffset
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; CHECK-NEXT: .long "?catch$4@?0?main@4HA"@IMGREL # Handler
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; CHECK-NEXT: .long {{.*}} # ParentFrameOffset
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; ModuleID = 't.cpp'
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source_filename = "t.cpp"
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.0.24210"
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%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
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$"\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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; Function Attrs: norecurse uwtable
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define i32 @main() local_unnamed_addr personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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%v = alloca i32, align 4
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invoke void @maythrow()
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to label %try.cont6 unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%0 = catchswitch within none [label %catch] unwind label %catch.dispatch2
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catch: ; preds = %catch.dispatch
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%1 = catchpad within %0 [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i32* %v]
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invoke void @maythrow() [ "funclet"(token %1) ]
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to label %invoke.cont1 unwind label %catch.dispatch2
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catch.dispatch2: ; preds = %catch, %catch.dispatch
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%2 = catchswitch within none [label %catch3] unwind to caller
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catch3: ; preds = %catch.dispatch2
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%3 = catchpad within %2 [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i32* %v]
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call void @maythrow() [ "funclet"(token %3) ]
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catchret from %3 to label %try.cont6
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try.cont6: ; preds = %entry, %invoke.cont1, %catch3
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ret i32 0
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invoke.cont1: ; preds = %catch
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catchret from %1 to label %try.cont6
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}
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declare void @maythrow() local_unnamed_addr #1
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declare i32 @__CxxFrameHandler3(...)
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!llvm.module.flags = !{!0}
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!llvm.ident = !{!1}
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!0 = !{i32 1, !"PIC Level", i32 2}
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!1 = !{!"clang version 4.0.0 "}
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