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eh unwinding: don't alloc data in parent frame, just use nullptr for now

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This commit is contained in:
Rainer Schuetze 2016-02-13 11:03:37 +01:00 • committed by Martin
parent 83368904d1
commit d8bbc0491d
1 changed files with 4 additions and 7 deletions
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11
ir/irfunction.cpp
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@ -273,7 +273,7 @@ llvm::BasicBlock *ScopeStack::runCleanupPad(CleanupCursor scope,
//
// cleanuppad:
// %0 = cleanuppad within %funclet[]
// %frame = alloca(byte[16])
// %frame = nullptr
// if (!_d_enter_cleanup(%frame)) br label %cleanupret
// else br label %copy
//
@ -292,12 +292,9 @@ llvm::BasicBlock *ScopeStack::runCleanupPad(CleanupCursor scope,
llvm::BasicBlock *cleanupret =
llvm::BasicBlock::Create(irs->context(), "cleanupret", irs->topfunc());
// allocate some space on the stack where _d_enter_cleanup can place an exception frame
auto int8Ty = LLType::getInt8Ty(gIR->context());
auto frametype = llvm::ArrayType::get(int8Ty, 16);
auto frameai = DtoRawAlloca(frametype, 0, "cleanup.frame");
auto frame =
new llvm::BitCastInst(frameai, getPtrToType(int8Ty), "", cleanupbb);
// preparation to allocate some space on the stack where _d_enter_cleanup
// can place an exception frame (but not done here)
auto frame = getNullPtr(getVoidPtrType());
auto endFn = getRuntimeFunction(Loc(), irs->module, "_d_leave_cleanup");
llvm::CallInst::Create(endFn, frame,