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[codeview] Remove EmitLabelDiff in favor emitAbsoluteSymbolDiff

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llvm-svn: 259700
This commit is contained in:
Reid Kleckner 2016-02-03 21:24:42 +00:00
parent 4c774eec2a
commit c9aa4356bd
1 changed files with 4 additions and 18 deletions
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22
lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
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@ -312,18 +312,6 @@ void CodeViewDebug::emitInlineeLinesSubsection() {
OS.EmitLabel(InlineEnd);
}
static void EmitLabelDiff(MCStreamer &Streamer,
const MCSymbol *From, const MCSymbol *To,
unsigned int Size = 4) {
MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
MCContext &Context = Streamer.getContext();
const MCExpr *FromRef = MCSymbolRefExpr::create(From, Variant, Context),
*ToRef = MCSymbolRefExpr::create(To, Variant, Context);
const MCExpr *AddrDelta =
MCBinaryExpr::create(MCBinaryExpr::Sub, ToRef, FromRef, Context);
Streamer.EmitValue(AddrDelta, Size);
}
void CodeViewDebug::collectInlineSiteChildren(
SmallVectorImpl<unsigned> &Children, const FunctionInfo &FI,
const InlineSite &Site) {
@ -339,8 +327,6 @@ void CodeViewDebug::collectInlineSiteChildren(
void CodeViewDebug::emitInlinedCallSite(const FunctionInfo &FI,
const DILocation *InlinedAt,
const InlineSite &Site) {
MCStreamer &OS = *Asm->OutStreamer;
MCSymbol *InlineBegin = Asm->MMI->getContext().createTempSymbol(),
*InlineEnd = Asm->MMI->getContext().createTempSymbol();
@ -349,7 +335,7 @@ void CodeViewDebug::emitInlinedCallSite(const FunctionInfo &FI,
// SymbolRecord
OS.AddComment("Record length");
EmitLabelDiff(OS, InlineBegin, InlineEnd, 2); // RecordLength
OS.emitAbsoluteSymbolDiff(InlineEnd, InlineBegin, 2); // RecordLength
OS.EmitLabel(InlineBegin);
OS.AddComment("Record kind: S_INLINESITE");
OS.EmitIntValue(SymbolRecordKind::S_INLINESITE, 2); // RecordKind
@ -407,13 +393,13 @@ void CodeViewDebug::emitDebugInfoForFunction(const Function *GV,
OS.AddComment("Symbol subsection for " + Twine(FuncName));
OS.EmitIntValue(unsigned(ModuleSubstreamKind::Symbols), 4);
OS.AddComment("Subsection size");
EmitLabelDiff(*Asm->OutStreamer, SymbolsBegin, SymbolsEnd);
OS.emitAbsoluteSymbolDiff(SymbolsEnd, SymbolsBegin, 4);
OS.EmitLabel(SymbolsBegin);
{
MCSymbol *ProcRecordBegin = Asm->MMI->getContext().createTempSymbol(),
*ProcRecordEnd = Asm->MMI->getContext().createTempSymbol();
OS.AddComment("Record length");
EmitLabelDiff(*Asm->OutStreamer, ProcRecordBegin, ProcRecordEnd, 2);
OS.emitAbsoluteSymbolDiff(ProcRecordEnd, ProcRecordBegin, 2);
OS.EmitLabel(ProcRecordBegin);
OS.AddComment("Record kind: S_GPROC32_ID");
@ -429,7 +415,7 @@ void CodeViewDebug::emitDebugInfoForFunction(const Function *GV,
// This is the important bit that tells the debugger where the function
// code is located and what's its size:
OS.AddComment("Code size");
EmitLabelDiff(*Asm->OutStreamer, Fn, FI.End);
OS.emitAbsoluteSymbolDiff(FI.End, Fn, 4);
OS.AddComment("Offset after prologue");
OS.EmitIntValue(0, 4);
OS.AddComment("Offset before epilogue");