New EH representation for MSVC compatibility
Summary:
This introduces new instructions neccessary to implement MSVC-compatible
exception handling support. Most of the middle-end and none of the
back-end haven't been audited or updated to take them into account.
Reviewers: rnk, JosephTremoulet, reames, nlewycky, rjmccall
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11041
llvm-svn: 241888
diff --git a/llvm/lib/IR/AsmWriter.cpp b/llvm/lib/IR/AsmWriter.cpp
index adc620d..a866828 100644
--- a/llvm/lib/IR/AsmWriter.cpp
+++ b/llvm/lib/IR/AsmWriter.cpp
@@ -2848,8 +2848,66 @@
writeOperand(LPI->getClause(i), true);
}
+ } else if (const auto *CBI = dyn_cast<CatchBlockInst>(&I)) {
+ Out << ' ';
+ TypePrinter.print(I.getType(), Out);
+
+ Out << " [";
+ for (unsigned Op = 0, NumOps = CBI->getNumArgOperands(); Op < NumOps;
+ ++Op) {
+ if (Op > 0)
+ Out << ", ";
+ writeOperand(CBI->getArgOperand(Op), /*PrintType=*/true);
+ }
+ Out << "] to ";
+ writeOperand(CBI->getNormalDest(), /*PrintType=*/true);
+ Out << " unwind ";
+ writeOperand(CBI->getUnwindDest(), /*PrintType=*/true);
+ } else if (const auto *TBI = dyn_cast<TerminateBlockInst>(&I)) {
+ Out << " [";
+ for (unsigned Op = 0, NumOps = TBI->getNumArgOperands(); Op < NumOps;
+ ++Op) {
+ if (Op > 0)
+ Out << ", ";
+ writeOperand(TBI->getArgOperand(Op), /*PrintType=*/true);
+ }
+ Out << "] unwind ";
+ if (TBI->hasUnwindDest())
+ writeOperand(TBI->getUnwindDest(), /*PrintType=*/true);
+ else
+ Out << "to caller";
+ } else if (const auto *CBI = dyn_cast<CleanupBlockInst>(&I)) {
+ Out << ' ';
+ TypePrinter.print(I.getType(), Out);
+
+ Out << " [";
+ for (unsigned Op = 0, NumOps = CBI->getNumOperands(); Op < NumOps; ++Op) {
+ if (Op > 0)
+ Out << ", ";
+ writeOperand(CBI->getOperand(Op), /*PrintType=*/true);
+ }
+ Out << "]";
} else if (isa<ReturnInst>(I) && !Operand) {
Out << " void";
+ } else if (const auto *CRI = dyn_cast<CleanupReturnInst>(&I)) {
+ if (CRI->hasReturnValue()) {
+ Out << ' ';
+ writeOperand(CRI->getReturnValue(), /*PrintType=*/true);
+ } else {
+ Out << " void";
+ }
+
+ Out << " unwind ";
+ if (CRI->hasUnwindDest())
+ writeOperand(CRI->getUnwindDest(), /*PrintType=*/true);
+ else
+ Out << "to caller";
+ } else if (const auto *CEBI = dyn_cast<CatchEndBlockInst>(&I)) {
+ Out << " unwind ";
+ if (CEBI->hasUnwindDest())
+ writeOperand(CEBI->getUnwindDest(), /*PrintType=*/true);
+ else
+ Out << "to caller";
} else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
// Print the calling convention being used.
if (CI->getCallingConv() != CallingConv::C) {