Initial commit of the 'landingpad' instruction.
This implements the 'landingpad' instruction. It's used to indicate that a basic
block is a landing pad. There are several restrictions on its use (see
LangRef.html for more detail). These restrictions allow the exception handling
code to gather the information it needs in a much more sane way.
This patch has the definition, implementation, C interface, parsing, and bitcode
support in it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 12f0715..5b3d969 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -1165,6 +1165,23 @@
break;
}
+ case Instruction::LandingPad: {
+ const LandingPadInst &LP = cast<LandingPadInst>(I);
+ Code = bitc::FUNC_CODE_INST_LANDINGPAD;
+ Vals.push_back(VE.getTypeID(LP.getType()));
+ PushValueAndType(LP.getPersonalityFn(), InstID, Vals, VE);
+ Vals.push_back(LP.isCleanup());
+ Vals.push_back(LP.getNumClauses());
+ for (unsigned I = 0, E = LP.getNumClauses(); I != E; ++I) {
+ if (LP.isCatch(I))
+ Vals.push_back(LandingPadInst::Catch);
+ else
+ Vals.push_back(LandingPadInst::Filter);
+ PushValueAndType(LP.getClause(I), InstID, Vals, VE);
+ }
+ break;
+ }
+
case Instruction::Alloca:
Code = bitc::FUNC_CODE_INST_ALLOCA;
Vals.push_back(VE.getTypeID(I.getType()));