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Win64 SEH: Emit the constant 1 for catch-all into xdata
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226767 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -145,7 +145,7 @@ const MCSymbolRefExpr *Win64Exception::createImageRel32(const MCSymbol *Value) {
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/// struct Entry {
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/// imagerel32 LabelStart;
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/// imagerel32 LabelEnd;
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/// imagerel32 FilterOrFinally; // Zero means catch-all.
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/// imagerel32 FilterOrFinally; // One means catch-all.
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/// imagerel32 LabelLPad; // Zero means __finally.
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/// } Entries[NumEntries];
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/// };
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@ -241,7 +241,7 @@ void Win64Exception::emitCSpecificHandlerTable() {
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if (TI) // Emit the filter function pointer.
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Asm->OutStreamer.EmitValue(createImageRel32(Asm->getSymbol(TI)), 4);
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else // Otherwise, this is a "catch i8* null", or catch all.
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Asm->OutStreamer.EmitIntValue(0, 4);
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Asm->OutStreamer.EmitIntValue(1, 4);
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}
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Asm->OutStreamer.EmitValue(createImageRel32(ClauseLabel), 4);
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}
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29
test/CodeGen/X86/seh-catch-all.ll
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29
test/CodeGen/X86/seh-catch-all.ll
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@ -0,0 +1,29 @@
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; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s
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@str = internal unnamed_addr constant [10 x i8] c"recovered\00", align 1
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declare i32 @__C_specific_handler(...)
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declare void @crash()
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declare i32 @puts(i8*)
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define i32 @main() {
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entry:
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invoke void @crash()
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to label %__try.cont unwind label %lpad
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lpad:
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
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catch i8* null
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call i32 @puts(i8* getelementptr inbounds ([10 x i8]* @str, i64 0, i64 0))
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br label %__try.cont
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__try.cont:
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ret i32 0
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eh.resume:
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resume { i8*, i32 } %0
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}
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; CHECK-LABEL: main:
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; CHECK: .seh_handlerdata
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; CHECK: .long
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