6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-26 07:29:55 +00:00
Code Issues Projects Releases Wiki Activity

start moving towards emitting inline asm statements with

Browse Source 
EmitInlineAsm.  However, this attempt is foiled by operands
being emitted directly to "O" so I'll have to do some surgery
and finish MCizing the world.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100291 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-04-03 22:01:50 +00:00
parent 3580dea910
commit f94f8dcda7
2 changed files with 36 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/llvm/CodeGen/AsmPrinter.h
View File

@ -359,7 +359,7 @@ namespace llvm {
private:
/// EmitInlineAsm - Emit a blob of inline asm to the output streamer.
void EmitInlineAsm(StringRef Str);
void EmitInlineAsm(StringRef Str) const;
/// processDebugLoc - Processes the debug information of each machine
/// instruction's DebugLoc.

44
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
View File

@ -878,7 +878,7 @@ void AsmPrinter::EmitXXStructorList(Constant *List) {
}
/// EmitInlineAsm - Emit a blob of inline asm to the output streamer.
void AsmPrinter::EmitInlineAsm(StringRef Str) {
void AsmPrinter::EmitInlineAsm(StringRef Str) const {
assert(!Str.empty() && "Can't emit empty inline asm block");
// If the output streamer is actually a .s file, just emit the blob textually.
@ -1366,9 +1366,11 @@ void AsmPrinter::processDebugLoc(const MachineInstr *MI,
/// printInlineAsm - This method formats and prints the specified machine
/// instruction that is an inline asm.
void AsmPrinter::printInlineAsm(const MachineInstr *MI) const {
assert(MI->isInlineAsm() && "printInlineAsm only works on inline asms");
unsigned NumOperands = MI->getNumOperands();
// Count the number of register definitions.
// Count the number of register definitions to find the asm string.
unsigned NumDefs = 0;
for (; MI->getOperand(NumDefs).isReg() && MI->getOperand(NumDefs).isDef();
++NumDefs)
@ -1379,17 +1381,32 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const {
// Disassemble the AsmStr, printing out the literal pieces, the operands, etc.
const char *AsmStr = MI->getOperand(NumDefs).getSymbolName();
O << '\t';
// If this asmstr is empty, just print the #APP/#NOAPP markers.
// These are useful to see where empty asm's wound up.
if (AsmStr[0] == 0) {
O << MAI->getCommentString() << MAI->getInlineAsmStart() << "\n\t";
O << MAI->getCommentString() << MAI->getInlineAsmEnd() << '\n';
if (!OutStreamer.hasRawTextSupport()) return;
OutStreamer.EmitRawText(std::string("\t")+MAI->getCommentString()+
MAI->getInlineAsmStart());
OutStreamer.EmitRawText(std::string("\t")+MAI->getCommentString()+
MAI->getInlineAsmEnd());
return;
}
// Emit the #APP start marker. This has to happen even if verbose-asm isn't
// enabled, so we use EmitRawText.
if (OutStreamer.hasRawTextSupport())
OutStreamer.EmitRawText(std::string("\t")+MAI->getCommentString()+
MAI->getInlineAsmStart());
// Emit the inline asm to a temporary string so we can emit it through
// EmitInlineAsm.
#if 0
SmallString<256> StringData;
raw_svector_ostream O(StringData);
#endif
O << MAI->getCommentString() << MAI->getInlineAsmStart() << "\n\t";
O << '\t';
// The variant of the current asmprinter.
int AsmPrinterVariant = MAI->getAssemblerDialect();
@ -1558,8 +1575,17 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const {
}
}
}
O << "\n\t" << MAI->getCommentString() << MAI->getInlineAsmEnd();
OutStreamer.AddBlankLine();
O << "\n";
#if 0
EmitInlineAsm(O.str());
#endif
// Emit the #NOAPP end marker. This has to happen even if verbose-asm isn't
// enabled, so we use EmitRawText.
if (OutStreamer.hasRawTextSupport())
OutStreamer.EmitRawText(std::string("\t")+MAI->getCommentString()+
MAI->getInlineAsmEnd());
}
/// printImplicitDef - This method prints the specified machine instruction