#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCParser/AsmParser.h"
#include "llvm/Target/TargetAsmParser.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetRegistry.h"
/// EmitInlineAsm - Emit a blob of inline asm to the output streamer.
void AsmPrinter::EmitInlineAsm(StringRef Str, unsigned LocCookie) const {
assert(!Str.empty() && "Can't emit empty inline asm block");
-
+
// Remember if the buffer is nul terminated or not so we can avoid a copy.
bool isNullTerminated = Str.back() == 0;
if (isNullTerminated)
Str = Str.substr(0, Str.size()-1);
-
+
// If the output streamer is actually a .s file, just emit the blob textually.
// This is useful in case the asm parser doesn't handle something but the
// system assembler does.
OutStreamer.EmitRawText(Str);
return;
}
-
+
SourceMgr SrcMgr;
-
+
// If the current LLVMContext has an inline asm handler, set it in SourceMgr.
LLVMContext &LLVMCtx = MMI->getModule()->getContext();
bool HasDiagHandler = false;
LLVMCtx.getInlineAsmDiagnosticContext(), LocCookie);
HasDiagHandler = true;
}
-
+
MemoryBuffer *Buffer;
if (isNullTerminated)
Buffer = MemoryBuffer::getMemBuffer(Str, "<inline asm>");
// Tell SrcMgr about this buffer, it takes ownership of the buffer.
SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
-
- AsmParser Parser(SrcMgr, OutContext, OutStreamer, *MAI);
- OwningPtr<TargetAsmParser> TAP(TM.getTarget().createAsmParser(Parser));
+
+ OwningPtr<MCAsmParser> Parser(createMCAsmParser(TM.getTarget(), SrcMgr,
+ OutContext, OutStreamer,
+ *MAI));
+ OwningPtr<TargetAsmParser> TAP(TM.getTarget().createAsmParser(*Parser, TM));
if (!TAP)
report_fatal_error("Inline asm not supported by this streamer because"
" we don't have an asm parser for this target\n");
- Parser.setTargetParser(*TAP.get());
+ Parser->setTargetParser(*TAP.get());
// Don't implicitly switch to the text section before the asm.
- int Res = Parser.Run(/*NoInitialTextSection*/ true,
- /*NoFinalize*/ true);
+ int Res = Parser->Run(/*NoInitialTextSection*/ true,
+ /*NoFinalize*/ true);
if (Res && !HasDiagHandler)
report_fatal_error("Error parsing inline asm\n");
}
/// instruction that is an inline asm.
void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
assert(MI->isInlineAsm() && "printInlineAsm only works on inline asms");
-
+
unsigned NumOperands = MI->getNumOperands();
-
+
// Count the number of register definitions to find the asm string.
unsigned NumDefs = 0;
for (; MI->getOperand(NumDefs).isReg() && MI->getOperand(NumDefs).isDef();
++NumDefs)
assert(NumDefs != NumOperands-2 && "No asm string?");
-
+
assert(MI->getOperand(NumDefs).isSymbol() && "No asm string?");
// Disassemble the AsmStr, printing out the literal pieces, the operands, etc.
break;
}
}
-
+
// Emit the inline asm to a temporary string so we can emit it through
// EmitInlineAsm.
SmallString<256> StringData;
raw_svector_ostream OS(StringData);
-
+
OS << '\t';
// The variant of the current asmprinter.
int CurVariant = -1; // The number of the {.|.|.} region we are in.
const char *LastEmitted = AsmStr; // One past the last character emitted.
-
+
while (*LastEmitted) {
switch (*LastEmitted) {
default: {
++LastEmitted; // consume ')' character.
if (CurVariant == -1)
OS << '}'; // this is gcc's behavior for } outside a variant
- else
+ else
CurVariant = -1;
break;
}
if (Done) break;
-
+
bool HasCurlyBraces = false;
if (*LastEmitted == '{') { // ${variable}
++LastEmitted; // Consume '{' character.
HasCurlyBraces = true;
}
-
+
// If we have ${:foo}, then this is not a real operand reference, it is a
// "magic" string reference, just like in .td files. Arrange to call
// PrintSpecial.
if (StrEnd == 0)
report_fatal_error("Unterminated ${:foo} operand in inline asm"
" string: '" + Twine(AsmStr) + "'");
-
+
std::string Val(StrStart, StrEnd);
PrintSpecial(MI, OS, Val.c_str());
LastEmitted = StrEnd+1;
break;
}
-
+
const char *IDStart = LastEmitted;
const char *IDEnd = IDStart;
- while (*IDEnd >= '0' && *IDEnd <= '9') ++IDEnd;
-
+ while (*IDEnd >= '0' && *IDEnd <= '9') ++IDEnd;
+
unsigned Val;
if (StringRef(IDStart, IDEnd-IDStart).getAsInteger(10, Val))
report_fatal_error("Bad $ operand number in inline asm string: '" +
Twine(AsmStr) + "'");
LastEmitted = IDEnd;
-
+
char Modifier[2] = { 0, 0 };
-
+
if (HasCurlyBraces) {
// If we have curly braces, check for a modifier character. This
// supports syntax like ${0:u}, which correspond to "%u0" in GCC asm.
if (*LastEmitted == 0)
report_fatal_error("Bad ${:} expression in inline asm string: '" +
Twine(AsmStr) + "'");
-
+
Modifier[0] = *LastEmitted;
++LastEmitted; // Consume modifier character.
}
-
+
if (*LastEmitted != '}')
report_fatal_error("Bad ${} expression in inline asm string: '" +
Twine(AsmStr) + "'");
++LastEmitted; // Consume '}' character.
}
-
+
if (Val >= NumOperands-1)
report_fatal_error("Invalid $ operand number in inline asm string: '" +
Twine(AsmStr) + "'");
-
+
// Okay, we finally have a value number. Ask the target to print this
// operand!
if (CurVariant == -1 || CurVariant == AsmPrinterVariant) {
- unsigned OpNo = 1;
+ unsigned OpNo = 2;
bool Error = false;
}
OS << '\n' << (char)0; // null terminate string.
EmitInlineAsm(OS.str(), LocCookie);
-
+
// Emit the #NOAPP end marker. This has to happen even if verbose-asm isn't
// enabled, so we use EmitRawText.
if (OutStreamer.hasRawTextSupport())
} else if (!strcmp(Code, "uid")) {
// Comparing the address of MI isn't sufficient, because machineinstrs may
// be allocated to the same address across functions.
-
+
// If this is a new LastFn instruction, bump the counter.
if (LastMI != MI || LastFn != getFunctionNumber()) {
++Counter;
Msg << "Unknown special formatter '" << Code
<< "' for machine instr: " << *MI;
report_fatal_error(Msg.str());
- }
+ }
}
/// PrintAsmOperand - Print the specified operand of MI, an INLINEASM
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