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llvm-mc: Implement .abort fully in the front end

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77272 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-07-27 23:20:52 +00:00
parent 02efa786d4
commit f9507ffa5b
6 changed files with 18 additions and 28 deletions
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7
include/llvm/MC/MCStreamer.h
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@ -156,13 +156,6 @@ namespace llvm {
virtual void EmitZerofill(MCSection *Section, MCSymbol *Symbol = 0,
unsigned Size = 0,unsigned Pow2Alignment = 0) = 0;
/// AbortAssembly - Stop and don't produce output, printing @param
/// AbortReason if non-NULL to indicate the reason the assembly is
/// terminated.
///
/// @param AbortReason - The reason assembly is terminated, if non-NULL.
virtual void AbortAssembly(const char *AbortReason) = 0;
/// @}
/// @name Generating Data
/// @{

10
lib/MC/MCAsmStreamer.cpp
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@ -55,8 +55,6 @@ namespace {
virtual void EmitZerofill(MCSection *Section, MCSymbol *Symbol = NULL,
unsigned Size = 0, unsigned Pow2Alignment = 0);
virtual void AbortAssembly(const char *AbortReason = NULL);
virtual void EmitBytes(const StringRef &Data);
virtual void EmitValue(const MCValue &Value, unsigned Size);
@ -132,14 +130,6 @@ void MCAsmStreamer::EmitAssemblerFlag(AssemblerFlag Flag) {
OS << '\n';
}
void MCAsmStreamer::AbortAssembly(const char *AbortReason) {
OS << ".abort";
if (AbortReason != NULL)
OS << ' ' << AbortReason;
OS << '\n';
}
void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCValue &Value,
bool MakeAbsolute) {
assert(!Symbol->getSection() && "Cannot assign to a label!");

6
test/MC/AsmParser/directive_abort.s
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@ -1,8 +1,6 @@
# RUN: llvm-mc -triple i386-unknown-unknown %s | FileCheck %s
# RUN: llvm-mc -triple i386-unknown-unknown %s 2> %t
# RUN: FileCheck -input-file %t %s
# CHECK: TEST0:
# CHECK: .abort "please stop assembing"
# CHECK: .abort
TEST0:
.abort "please stop assembing"
.abort

17
tools/llvm-mc/AsmParser.cpp
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@ -14,6 +14,7 @@
#include "AsmParser.h"
#include "AsmExpr.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCStreamer.h"
@ -23,12 +24,12 @@
#include "llvm/Target/TargetAsmParser.h"
using namespace llvm;
void AsmParser::Warning(SMLoc L, const char *Msg) {
Lexer.PrintMessage(L, Msg, "warning");
void AsmParser::Warning(SMLoc L, const Twine &Msg) {
Lexer.PrintMessage(L, Msg.str(), "warning");
}
bool AsmParser::Error(SMLoc L, const char *Msg) {
Lexer.PrintMessage(L, Msg, "error");
bool AsmParser::Error(SMLoc L, const Twine &Msg) {
Lexer.PrintMessage(L, Msg.str(), "error");
return true;
}
@ -1117,6 +1118,9 @@ bool AsmParser::ParseDirectiveDarwinSubsectionsViaSymbols() {
/// ParseDirectiveAbort
/// ::= .abort [ "abort_string" ]
bool AsmParser::ParseDirectiveAbort() {
// FIXME: Use loc from directive.
SMLoc Loc = Lexer.getLoc();
StringRef Str = "";
if (Lexer.isNot(asmtok::EndOfStatement)) {
if (Lexer.isNot(asmtok::String))
@ -1133,7 +1137,10 @@ bool AsmParser::ParseDirectiveAbort() {
Lexer.Lex();
// FIXME: Handle here.
Out.AbortAssembly(Str.str().c_str());
if (Str.empty())
Error(Loc, ".abort detected. Assembly stopping.");
else
Error(Loc, ".abort '" + Str + "' detected. Assembly stopping.");
return false;
}

5
tools/llvm-mc/AsmParser.h
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@ -25,6 +25,7 @@ class MCInst;
class MCStreamer;
class MCValue;
class TargetAsmParser;
class Twine;
class AsmParser : MCAsmParser {
public:
@ -52,8 +53,8 @@ public:
private:
bool ParseStatement();
void Warning(SMLoc L, const char *Msg);
bool Error(SMLoc L, const char *Msg);
void Warning(SMLoc L, const Twine &Msg);
bool Error(SMLoc L, const Twine &Msg);
bool TokError(const char *Msg);
void EatToEndOfStatement();

1
tools/llvm-mc/MC-X86Specific.cpp
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@ -13,6 +13,7 @@
//===----------------------------------------------------------------------===//
#include "AsmParser.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/SourceMgr.h"
using namespace llvm;