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author | Chad Rosier <mcrosier@apple.com> | 2011-09-16 21:09:17 +0000 |
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committer | Chad Rosier <mcrosier@apple.com> | 2011-09-16 21:09:17 +0000 |
commit | 4e0a55d0d129bc56c4b961288d4f63538b3ef824 (patch) | |
tree | 1f90591896dcdfd522c615395830163468e6e29f /tools/llvm-extract | |
parent | 947a24cd64f9471511629e9db84bac2c334c73c2 (diff) | |
download | external_llvm-4e0a55d0d129bc56c4b961288d4f63538b3ef824.zip external_llvm-4e0a55d0d129bc56c4b961288d4f63538b3ef824.tar.gz external_llvm-4e0a55d0d129bc56c4b961288d4f63538b3ef824.tar.bz2 |
Add -rfunc and -rglob options to llvm-extract to support regular
expression matching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139945 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-extract')
-rw-r--r-- | tools/llvm-extract/llvm-extract.cpp | 77 |
1 files changed, 71 insertions, 6 deletions
diff --git a/tools/llvm-extract/llvm-extract.cpp b/tools/llvm-extract/llvm-extract.cpp index a6c229f..f6227ee 100644 --- a/tools/llvm-extract/llvm-extract.cpp +++ b/tools/llvm-extract/llvm-extract.cpp @@ -26,7 +26,9 @@ #include "llvm/Support/ToolOutputFile.h" #include "llvm/Support/SystemUtils.h" #include "llvm/Support/Signals.h" +#include "llvm/Support/Regex.h" #include "llvm/ADT/SmallPtrSet.h" +#include "llvm/ADT/SetVector.h" #include <memory> using namespace llvm; @@ -45,16 +47,30 @@ Force("f", cl::desc("Enable binary output on terminals")); static cl::opt<bool> DeleteFn("delete", cl::desc("Delete specified Globals from Module")); -// ExtractFuncs - The functions to extract from the module... +// ExtractFuncs - The functions to extract from the module. static cl::list<std::string> ExtractFuncs("func", cl::desc("Specify function to extract"), cl::ZeroOrMore, cl::value_desc("function")); -// ExtractGlobals - The globals to extract from the module... +// ExtractRegExpFuncs - The functions, matched via regular expression, to +// extract from the module. +static cl::list<std::string> +ExtractRegExpFuncs("rfunc", cl::desc("Specify function(s) to extract using a " + "regular expression"), + cl::ZeroOrMore, cl::value_desc("rfunction")); + +// ExtractGlobals - The globals to extract from the module. static cl::list<std::string> ExtractGlobals("glob", cl::desc("Specify global to extract"), cl::ZeroOrMore, cl::value_desc("global")); +// ExtractRegExpGlobals - The globals, matched via regular expression, to +// extract from the module... +static cl::list<std::string> +ExtractRegExpGlobals("rglob", cl::desc("Specify global(s) to extract using a " + "regular expression"), + cl::ZeroOrMore, cl::value_desc("rglobal")); + static cl::opt<bool> OutputAssembly("S", cl::desc("Write output as LLVM assembly"), cl::Hidden); @@ -78,7 +94,8 @@ int main(int argc, char **argv) { return 1; } - std::vector<GlobalValue *> GVs; + // Use SetVector to avoid duplicates. + SetVector<GlobalValue *> GVs; // Figure out which globals we should extract. for (size_t i = 0, e = ExtractGlobals.size(); i != e; ++i) { @@ -88,7 +105,30 @@ int main(int argc, char **argv) { << ExtractGlobals[i] << "'!\n"; return 1; } - GVs.push_back(GV); + GVs.insert(GV); + } + + // Extract globals via regular expression matching. + for (size_t i = 0, e = ExtractRegExpGlobals.size(); i != e; ++i) { + std::string Error; + Regex RegEx(ExtractRegExpGlobals[i]); + if (!RegEx.isValid(Error)) { + errs() << argv[0] << ": '" << ExtractRegExpGlobals[i] << "' " + "invalid regex: " << Error; + } + bool match = false; + for (Module::global_iterator GV = M.get()->global_begin(), + E = M.get()->global_end(); GV != E; GV++) { + if (RegEx.match(GV->getName())) { + GVs.insert(&*GV); + match = true; + } + } + if (!match) { + errs() << argv[0] << ": program doesn't contain global named '" + << ExtractRegExpGlobals[i] << "'!\n"; + return 1; + } } // Figure out which functions we should extract. @@ -99,7 +139,30 @@ int main(int argc, char **argv) { << ExtractFuncs[i] << "'!\n"; return 1; } - GVs.push_back(GV); + GVs.insert(GV); + } + // Extract functions via regular expression matching. + for (size_t i = 0, e = ExtractRegExpFuncs.size(); i != e; ++i) { + std::string Error; + StringRef RegExStr = ExtractRegExpFuncs[i]; + Regex RegEx(RegExStr); + if (!RegEx.isValid(Error)) { + errs() << argv[0] << ": '" << ExtractRegExpFuncs[i] << "' " + "invalid regex: " << Error; + } + bool match = false; + for (Module::iterator F = M.get()->begin(), E = M.get()->end(); F != E; + F++) { + if (RegEx.match(F->getName())) { + GVs.insert(&*F); + match = true; + } + } + if (!match) { + errs() << argv[0] << ": program doesn't contain global named '" + << ExtractRegExpFuncs[i] << "'!\n"; + return 1; + } } // Materialize requisite global values. @@ -145,7 +208,9 @@ int main(int argc, char **argv) { PassManager Passes; Passes.add(new TargetData(M.get())); // Use correct TargetData - Passes.add(createGVExtractionPass(GVs, DeleteFn)); + std::vector<GlobalValue*> Gvs(GVs.begin(), GVs.end()); + + Passes.add(createGVExtractionPass(Gvs, DeleteFn)); if (!DeleteFn) Passes.add(createGlobalDCEPass()); // Delete unreachable globals Passes.add(createStripDeadDebugInfoPass()); // Remove dead debug info |