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Add catch block handling to SjLj exception handling.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78817 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2009-08-12 17:38:44 +00:00
parent 683e922d29
commit bff392384d
2 changed files with 13 additions and 4 deletions
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13
lib/CodeGen/AsmPrinter/DwarfException.cpp
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@ -531,6 +531,11 @@ void DwarfException::EmitExceptionTable() {
const unsigned SiteLengthSize = sizeof(int32_t); // DW_EH_PE_udata4
const unsigned LandingPadSize = sizeof(int32_t); // DW_EH_PE_udata4
unsigned SizeSites;
bool HaveTTData = (TAI->getExceptionHandlingType() == ExceptionHandling::SjLj)
? (!TypeInfos.empty() || !FilterIds.empty()) : true;
if (TAI->getExceptionHandlingType() == ExceptionHandling::SjLj) {
SizeSites = (MF->getMaxCallSiteIndex() - CallSites.size()) *
TargetAsmInfo::getULEB128Size(0) * 2;
@ -553,7 +558,8 @@ void DwarfException::EmitExceptionTable() {
unsigned TotalSize = sizeof(int8_t) + // LPStart format
sizeof(int8_t) + // TType format
TargetAsmInfo::getULEB128Size(TypeOffset) + // TType base offset
(HaveTTData ?
TargetAsmInfo::getULEB128Size(TypeOffset) : 0) + // TType base offset
TypeOffset;
unsigned SizeAlign = (4 - TotalSize) & 3;
@ -624,11 +630,10 @@ void DwarfException::EmitExceptionTable() {
Asm->EOL("TType base offset");
}
#else
// For SjLj exceptions, is there is no TypeInfo, then we just explicitly
// For SjLj exceptions, if there is no TypeInfo, then we just explicitly
// say that we're omitting that bit.
// FIXME: does this apply to Dwarf also? The above #if 0 implies yes?
if (TAI->getExceptionHandlingType() == ExceptionHandling::SjLj
&& (TypeInfos.empty() || FilterIds.empty())) {
if (!HaveTTData) {
Asm->EmitInt8(dwarf::DW_EH_PE_omit);
Asm->EOL("TType format (DW_EH_PE_omit)");
} else {