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Add verbose EH table printing to SjLj exception tables.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133561 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-06-21 22:40:24 +00:00
parent 72d9b0e4fc
commit 0c11218f0a
1 changed files with 19 additions and 2 deletions
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21
lib/CodeGen/AsmPrinter/DwarfException.cpp
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@ -527,14 +527,30 @@ void DwarfException::EmitExceptionTable() {
I = CallSites.begin(), E = CallSites.end(); I != E; ++I, ++idx) {
const CallSiteEntry &S = *I;
if (VerboseAsm) {
// Emit comments that decode the call site.
Asm->OutStreamer.AddComment(Twine(">> Call Site ") +
llvm::utostr(idx) + " <<");
Asm->OutStreamer.AddComment(Twine(" On exception at call site ") +
llvm::utostr(idx));
if (S.Action == 0)
Asm->OutStreamer.AddComment(" Action: cleanup");
else
Asm->OutStreamer.AddComment(Twine(" Action: ") +
llvm::utostr((S.Action - 1) / 2 + 1));
Asm->OutStreamer.AddBlankLine();
}
// Offset of the landing pad, counted in 16-byte bundles relative to the
// @LPStart address.
Asm->EmitULEB128(idx, "Call Site");
Asm->EmitULEB128(idx);
// Offset of the first associated action record, relative to the start of
// the action table. This value is biased by 1 (1 indicates the start of
// the action table), and 0 indicates that there are no actions.
Asm->EmitULEB128(S.Action, "Action");
Asm->EmitULEB128(S.Action);
}
} else {
// DWARF Exception handling
@ -586,6 +602,7 @@ void DwarfException::EmitExceptionTable() {
Asm->OutStreamer.AddComment(Twine(" Call between ") +
BeginLabel->getName() + " and " +
EndLabel->getName());
if (!S.PadLabel) {
Asm->OutStreamer.AddComment(" has no landing pad");
} else {