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Add missing break statements. Align UNWIND_INFO and RUNTIME_FUNCTION structs 

to 4 bytes.

I'm surprised no one caught the missing break statements.

llvm-svn: 132176
This commit is contained in:
Charles Davis 2011-05-27 02:43:19 +00:00
parent 0cbb131d8b
commit 761313b28d
1 changed files with 6 additions and 0 deletions
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6
llvm/lib/MC/MCWin64EH.cpp
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@ -27,17 +27,21 @@ static uint8_t CountOfUnwindCodes(std::vector<MCWin64EHInstruction> &instArray){
case Win64EH::UOP_SetFPReg:
case Win64EH::UOP_PushMachFrame:
count += 1;
break;
case Win64EH::UOP_SaveNonVol:
case Win64EH::UOP_SaveXMM128:
count += 2;
break;
case Win64EH::UOP_SaveNonVolBig:
case Win64EH::UOP_SaveXMM128Big:
count += 3;
break;
case Win64EH::UOP_AllocLarge:
if (I->getSize() > 512*1024-8)
count += 3;
else
count += 2;
break;
}
}
return count;
@ -113,6 +117,7 @@ static void EmitRuntimeFunction(MCStreamer &streamer,
const MCWin64EHUnwindInfo *info) {
MCContext &context = streamer.getContext();
streamer.EmitValueToAlignment(4);
streamer.EmitValue(MCSymbolRefExpr::Create(info->Begin, context), 4);
streamer.EmitValue(MCSymbolRefExpr::Create(info->End, context), 4);
streamer.EmitValue(MCSymbolRefExpr::Create(info->Symbol, context), 4);
@ -123,6 +128,7 @@ static void EmitUnwindInfo(MCStreamer &streamer, MCWin64EHUnwindInfo *info) {
if (info->Symbol) return;
MCContext &context = streamer.getContext();
streamer.EmitValueToAlignment(4);
// Upper 3 bits are the version number (currently 1).
uint8_t flags = 0x20;
info->Symbol = context.CreateTempSymbol();