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- Remove unused GetSuffix function

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- Renamed FileReadable -> FileIsReadable
- Remove support for GROKS_DASH_O; deferr it to %opts% substitution
- Require a -o option except in case of linking where it defaults to a.out
- Fix problem processing *.o and *.bc files.
- Ignore optimization phase if -emit-raw-code
- Correct the assembly generation phase to support -emit-native-code
- Implement dependent library lookup


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16020 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-08-24 13:55:17 +00:00
parent fd2f728b48
commit a01439ada2
1 changed files with 118 additions and 78 deletions
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196
tools/llvmc/CompilerDriver.cpp
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@ -14,7 +14,11 @@
#include "CompilerDriver.h"
#include "ConfigLexer.h"
#include "llvm/Bytecode/Reader.h"
#include "llvm/Module.h"
#include "Support/FileUtilities.h"
#include "Support/SystemUtils.h"
#include "Support/StringExtras.h"
#include <iostream>
using namespace llvm;
@ -26,12 +30,6 @@ namespace {
return fullName.substr(0, dotpos);
}
inline std::string GetSuffix(const std::string& fullName) {
size_t dotpos = fullName.rfind('.',fullName.size());
if ( dotpos = std::string::npos ) return "";
return fullName.substr(dotpos+1);
}
const char OutputSuffix[] = ".o";
void WriteAction(CompilerDriver::Action* action ) {
@ -82,12 +80,12 @@ namespace {
// to be portable but we're avoiding that for now.
namespace sys {
bool FileReadable(const std::string& fname) {
bool FileIsReadable(const std::string& fname) {
return 0 == access(fname.c_str(), F_OK | R_OK);
}
void CleanupTempFile(const std::string& fname) {
if (FileReadable(fname))
if (FileIsReadable(fname))
unlink(fname.c_str());
}
@ -227,31 +225,24 @@ CompilerDriver::Action* CompilerDriver::GetAction(ConfigData* cd,
// FIXME: Ignore for now
} else if (*PI == "%opt%") {
if (!emitRawCode) {
if (pat->isSet(GROKS_DASH_O)) {
if (optLevel != OPT_NONE) {
std::string optArg("-O");
switch (optLevel) {
case OPT_FAST_COMPILE : optArg.append("1"); break;
case OPT_SIMPLE: optArg.append("2"); break;
case OPT_AGGRESSIVE: optArg.append("3"); break;
case OPT_LINK_TIME: optArg.append("4"); break;
case OPT_AGGRESSIVE_LINK_TIME: optArg.append("5"); break;
default :
assert(!"Invalid optimization argument!");
optArg.append("0");
break;
}
action->args.push_back(optArg);
}
} else {
if (cd->opts.size() > static_cast<unsigned>(optLevel) &&
!cd->opts[optLevel].empty())
action->args.insert(action->args.end(), cd->opts[optLevel].begin(),
if (cd->opts.size() > static_cast<unsigned>(optLevel) &&
!cd->opts[optLevel].empty())
action->args.insert(action->args.end(), cd->opts[optLevel].begin(),
cd->opts[optLevel].end());
}
else
error("Optimization options for level " + utostr(unsigned(optLevel)) +
" were not specified");
}
} else if (*PI == "%args%") {
if (AdditionalArgs.size() > unsigned(phase))
if (!AdditionalArgs[phase].empty()) {
// Get specific options for each kind of action type
StringVector& addargs = AdditionalArgs[phase];
// Add specific options for each kind of action type
action->args.insert(action->args.end(), addargs.begin(), addargs.end());
}
} else {
error("Invalid substitution name");
error("Invalid substitution name" + *PI);
}
} else {
// Its not a substitution, just put it in the action
@ -260,11 +251,6 @@ CompilerDriver::Action* CompilerDriver::GetAction(ConfigData* cd,
PI++;
}
// Get specific options for each kind of action type
StringVector& args = AdditionalArgs[phase];
// Add specific options for each kind of action type
action->args.insert(action->args.end(), args.begin(), args.end());
// Finally, we're done
return action;
@ -336,22 +322,23 @@ int CompilerDriver::execute(const InputList& InpList,
/// PRE-PROCESSING / TRANSLATION / OPTIMIZATION / ASSEMBLY phases
// for each input item
std::vector<std::string> LinkageItems;
std::string OutFile(Output);
InputList::const_iterator I = InpList.begin();
while ( I != InpList.end() ) {
// Get the suffix of the file name
std::string suffix = GetSuffix(I->first);
const std::string& ftype = I->second;
// If its a library, bytecode file, or object file, save
// it for linking below and short circuit the
// pre-processing/translation/assembly phases
if (I->second.empty() || suffix == "o" || suffix == "bc") {
if (ftype.empty() || ftype == "o" || ftype == "bc") {
// We shouldn't get any of these types of files unless we're
// later going to link. Enforce this limit now.
if (finalPhase != LINKING) {
error("Pre-compiled objects found but linking not requested");
}
LinkageItems.push_back(I->first);
continue; // short circuit remainder of loop
++I; continue; // short circuit remainder of loop
}
// At this point, we know its something we need to translate
@ -364,18 +351,6 @@ int CompilerDriver::execute(const InputList& InpList,
if (isDebug)
DumpConfigData(cd,I->second);
// We have valid configuration data, now figure out where the output
// of compilation should end up.
std::string OutFile;
if (finalPhase != LINKING) {
if (InpList.size() == 1 && !Output.empty())
OutFile = Output;
else
OutFile = RemoveSuffix(I->first) + OutputSuffix;
} else {
OutFile = Output;
}
// Initialize the input file
std::string InFile(I->first);
@ -443,33 +418,35 @@ int CompilerDriver::execute(const InputList& InpList,
action = cd->Optimizer;
// Get the optimization action, if needed, or error if appropriate
if (!action.program.empty() && !emitRawCode) {
if (action.isSet(REQUIRED_FLAG) || finalPhase == OPTIMIZATION) {
if (finalPhase == OPTIMIZATION)
actions.push_back(GetAction(cd,InFile,OutFile,OPTIMIZATION));
else {
actions.push_back(GetAction(cd,InFile,TempOptimizerOut,OPTIMIZATION));
InFile = TempOptimizerOut;
if (!emitRawCode) {
if (!action.program.empty()) {
if (action.isSet(REQUIRED_FLAG) || finalPhase == OPTIMIZATION) {
if (finalPhase == OPTIMIZATION)
actions.push_back(GetAction(cd,InFile,OutFile,OPTIMIZATION));
else {
actions.push_back(GetAction(cd,InFile,TempOptimizerOut,OPTIMIZATION));
InFile = TempOptimizerOut;
}
// ll -> bc Helper
if (action.isSet(OUTPUT_IS_ASM_FLAG)) {
/// The output of the translator is an LLVM Assembly program
/// We need to translate it to bytecode
Action* action = new Action();
action->program = "llvm-as";
action->args.push_back(InFile);
action->args.push_back("-f");
action->args.push_back("-o");
InFile += ".bc";
action->args.push_back(InFile);
actions.push_back(action);
}
}
// ll -> bc Helper
if (action.isSet(OUTPUT_IS_ASM_FLAG)) {
/// The output of the translator is an LLVM Assembly program
/// We need to translate it to bytecode
Action* action = new Action();
action->program = "llvm-as";
action->args.push_back(InFile);
action->args.push_back("-f");
action->args.push_back("-o");
InFile += ".bc";
action->args.push_back(InFile);
actions.push_back(action);
}
}
} else if (finalPhase == OPTIMIZATION) {
error(cd->langName + " does not support optimization");
} else if (action.isSet(REQUIRED_FLAG)) {
error(std::string("Don't know how to optimize ") +
} else if (finalPhase == OPTIMIZATION) {
error(cd->langName + " does not support optimization");
} else if (action.isSet(REQUIRED_FLAG)) {
error(std::string("Don't know how to optimize ") +
cd->langName + " files");
}
}
// Short-circuit remaining actions if all they want is optimization
@ -478,13 +455,16 @@ int CompilerDriver::execute(const InputList& InpList,
/// ASSEMBLY PHASE
action = cd->Assembler;
if (finalPhase == ASSEMBLY) {
if (finalPhase == ASSEMBLY || emitNativeCode) {
if (emitNativeCode) {
if (action.program.empty()) {
error(std::string("Native Assembler not specified for ") +
cd->langName + " files");
} else {
} else if (finalPhase == ASSEMBLY) {
actions.push_back(GetAction(cd,InFile,OutFile,ASSEMBLY));
} else {
actions.push_back(GetAction(cd,InFile,TempAssemblerOut,ASSEMBLY));
InFile = TempAssemblerOut;
}
} else {
// Just convert back to llvm assembly with llvm-dis
@ -497,7 +477,13 @@ int CompilerDriver::execute(const InputList& InpList,
actions.push_back(action);
}
}
// Short-circuit remaining actions if all they want is assembly output
if (finalPhase == ASSEMBLY) { ++I; continue; }
// Register the OutFile as a link candidate
LinkageItems.push_back(InFile);
// Go to next file to be processed
++I;
}
@ -505,7 +491,61 @@ int CompilerDriver::execute(const InputList& InpList,
/// LINKING PHASE
if (finalPhase == LINKING) {
if (emitNativeCode) {
error("llvmc doesn't know how to link native code yet");
} else {
// First, we need to examine the files to ensure that they all contain
// bytecode files. Since the final output is bytecode, we can only
// link bytecode.
StringVector::const_iterator I = LinkageItems.begin();
StringVector::const_iterator E = LinkageItems.end();
StringVector lib_list;
while (I != E ) {
if (sys::FileIsReadable(*I)) {
if (CheckMagic(*I, "llvm")) {
// Examine the bytecode file for additional bytecode libraries to
// link in.
ModuleProvider* mp = getBytecodeModuleProvider(*I);
assert(mp!=0 && "Couldn't get module provider from bytecode file");
Module* M = mp->releaseModule();
assert(M!=0 && "Couldn't get module from module provider");
Module::lib_iterator LI = M->lib_begin();
Module::lib_iterator LE = M->lib_end();
while ( LI != LE ) {
if (sys::FileIsReadable(*LI)) {
if (CheckMagic(*I,"llvm")) {
lib_list.push_back(*LI);
} else {
error(std::string("Library '") + *LI + "' required by file '"
+ *I + "' is not an LLVM bytecode file");
}
} else {
error(std::string("Library '") + *LI + "' required by file '"
+ *I + "' is not readable");
}
++I;
}
} else {
error(std::string("File '") + *I + " is not an LLVM byte code file");
}
} else {
error(std::string("File '") + *I + " is not readable");
}
++I;
}
// We're emitting bytecode so let's build an llvm-link Action
Action* link = new Action();
link->program = "llvm-link";
link->args = LinkageItems;
link->args.insert(link->args.end(), lib_list.begin(), lib_list.end());
link->args.push_back("-f");
link->args.push_back("-o");
link->args.push_back(OutFile);
if (timePasses)
link->args.push_back("-time-passes");
if (showStats)
link->args.push_back("-stats");
actions.push_back(link);
}
}
@ -524,7 +564,7 @@ int CompilerDriver::execute(const InputList& InpList,
::sys::CleanupTempFile(TempOptimizerOut);
// Cleanup temporary directory we created
if (::sys::FileReadable(TempDir))
if (::sys::FileIsReadable(TempDir))
rmdir(TempDir.c_str());
}