Add verbose EH table printing to SjLj exception tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index b2efad3..1f992fa 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -527,14 +527,30 @@
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 @@
Asm->OutStreamer.AddComment(Twine(" Call between ") +
BeginLabel->getName() + " and " +
EndLabel->getName());
+
if (!S.PadLabel) {
Asm->OutStreamer.AddComment(" has no landing pad");
} else {