#define DEBUG_TYPE "mips-os16"
#include "MipsOs16.h"
#include "llvm/IR/Module.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
+
+static cl::opt<std::string> Mips32FunctionMask(
+ "mips32-function-mask",
+ cl::init(""),
+ cl::desc("Force function to be mips32"),
+ cl::Hidden);
+
namespace {
// Figure out if we need float point based on the function signature.
bool MipsOs16::runOnModule(Module &M) {
- DEBUG(errs() << "Run on Module MipsOs16\n");
+ bool usingMask = Mips32FunctionMask.length() > 0;
+ bool doneUsingMask = false; // this will make it stop repeating
+ DEBUG(dbgs() << "Run on Module MipsOs16 \n" << Mips32FunctionMask << "\n");
+ if (usingMask)
+ DEBUG(dbgs() << "using mask \n" << Mips32FunctionMask << "\n");
+ unsigned int functionIndex = 0;
bool modified = false;
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
if (F->isDeclaration()) continue;
DEBUG(dbgs() << "Working on " << F->getName() << "\n");
- if (needsFP(*F)) {
- DEBUG(dbgs() << " need to compile as nomips16 \n");
- F->addFnAttr("nomips16");
+ if (usingMask) {
+ if (!doneUsingMask) {
+ if (functionIndex == Mips32FunctionMask.length())
+ functionIndex = 0;
+ switch (Mips32FunctionMask[functionIndex]) {
+ case '1':
+ DEBUG(dbgs() << "mask forced mips32: " << F->getName() << "\n");
+ F->addFnAttr("nomips16");
+ break;
+ case '.':
+ doneUsingMask = true;
+ break;
+ default:
+ break;
+ }
+ functionIndex++;
+ }
}
else {
- F->addFnAttr("mips16");
- DEBUG(dbgs() << " no need to compile as nomips16 \n");
+ if (needsFP(*F)) {
+ DEBUG(dbgs() << "os16 forced mips32: " << F->getName() << "\n");
+ F->addFnAttr("nomips16");
+ }
+ else {
+ DEBUG(dbgs() << "os16 forced mips16: " << F->getName() << "\n");
+ F->addFnAttr("mips16");
+ }
}
}
return modified;