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llvm-mc: Add -show-inst-operands, for dumping the parsed instruction representation before matching.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110791 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-08-11 06:37:09 +00:00
parent b3cb696794
commit 3c14ca47fc
4 changed files with 26 additions and 1 deletions
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5
include/llvm/MC/MCParser/MCAsmParser.h
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@ -39,6 +39,8 @@ private:
TargetAsmParser *TargetParser;
unsigned ShowParsedOperands : 1;
protected: // Can only create subclasses.
MCAsmParser();
@ -61,6 +63,9 @@ public:
TargetAsmParser &getTargetParser() const { return *TargetParser; }
void setTargetParser(TargetAsmParser &P);
bool getShowParsedOperands() const { return ShowParsedOperands; }
void setShowParsedOperands(bool Value) { ShowParsedOperands = Value; }
/// Run - Run the parser on the input source buffer.
virtual bool Run(bool NoInitialTextSection, bool NoFinalize = false) = 0;

15
lib/MC/MCParser/AsmParser.cpp
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@ -916,6 +916,21 @@ bool AsmParser::ParseStatement() {
if (!HadError && Lexer.isNot(AsmToken::EndOfStatement))
HadError = TokError("unexpected token in argument list");
// Dump the parsed representation, if requested.
if (getShowParsedOperands()) {
SmallString<256> Str;
raw_svector_ostream OS(Str);
OS << "parsed instruction: [";
for (unsigned i = 0; i != ParsedOperands.size(); ++i) {
if (i != 0)
OS << ", ";
ParsedOperands[i]->dump(OS);
}
OS << "]";
PrintMessage(IDLoc, OS.str(), "note");
}
// If parsing succeeded, match the instruction.
if (!HadError) {
MCInst Inst;

2
lib/MC/MCParser/MCAsmParser.cpp
View File

@ -15,7 +15,7 @@
#include "llvm/Target/TargetAsmParser.h"
using namespace llvm;
MCAsmParser::MCAsmParser() : TargetParser(0) {
MCAsmParser::MCAsmParser() : TargetParser(0), ShowParsedOperands(0) {
}
MCAsmParser::~MCAsmParser() {

5
tools/llvm-mc/llvm-mc.cpp
View File

@ -51,6 +51,10 @@ ShowEncoding("show-encoding", cl::desc("Show instruction encodings"));
static cl::opt<bool>
ShowInst("show-inst", cl::desc("Show internal instruction representation"));
static cl::opt<bool>
ShowInstOperands("show-inst-operands",
cl::desc("Show instructions operands as parsed"));
static cl::opt<unsigned>
OutputAsmVariant("output-asm-variant",
cl::desc("Syntax variant to use for output printing"));
@ -320,6 +324,7 @@ static int AssembleInput(const char *ProgName) {
return 1;
}
Parser->setShowParsedOperands(ShowInstOperands);
Parser->setTargetParser(*TAP.get());
int Res = Parser->Run(NoInitialTextSection);