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authorChad Rosier <mcrosier@apple.com>2011-09-16 21:09:17 +0000
committerChad Rosier <mcrosier@apple.com>2011-09-16 21:09:17 +0000
commit4e0a55d0d129bc56c4b961288d4f63538b3ef824 (patch)
tree1f90591896dcdfd522c615395830163468e6e29f /tools/llvm-extract
parent947a24cd64f9471511629e9db84bac2c334c73c2 (diff)
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.cpp77
1 files changed, 71 insertions, 6 deletions
diff --git a/tools/llvm-extract/llvm-extract.cpp b/tools/llvm-extract/llvm-extract.cpp
index a6c229fc979..f6227ee2555 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