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llvmc: Support -march arguments that should be forwarded to llc as -mcpu.

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llvm-svn: 121827
This commit is contained in:
Mikhail Glushenkov 2010-12-15 01:22:25 +00:00
parent 8cf4959bf1
commit 85f1ed369c
1 changed files with 42 additions and 10 deletions
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52
tools/llvmc/src/Hooks.cpp
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@ -26,8 +26,13 @@ typedef llvm::StringMap<const char*> ArgMap;
/// ConvertToMAttr. The optional Args parameter contains information about how
/// to transform special-cased values (for example, '-march=armv6' must be
/// forwarded as '-mattr=+v6').
std::string ConvertToMAttrImpl(const StrVec& Opts, const ArgMap* Args = 0) {
std::string out("-mattr=");
std::string ConvertToMAttrImpl(const StrVec& Opts,
const ArgMap* Args = 0,
const ArgMap* MCpuArgs = 0) {
std::string mattr("-mattr=");
std::string mcpu("-mcpu=");
bool mattrTouched = false;
bool mcpuTouched = false;
bool firstIter = true;
for (StrVec::const_iterator B = Opts.begin(), E = Opts.end(); B!=E; ++B) {
@ -36,31 +41,48 @@ std::string ConvertToMAttrImpl(const StrVec& Opts, const ArgMap* Args = 0) {
if (firstIter)
firstIter = false;
else
out += ",";
mattr += ",";
// Check if the argument is a special case.
if (Args != 0) {
ArgMap::const_iterator I = Args->find(Arg);
if (I != Args->end()) {
out += '+';
out += I->getValue();
mattr += '+';
mattr += I->getValue();
continue;
}
}
// Check if the argument should be forwarded to -mcpu instead of -mattr.
if (MCpuArgs != 0 && !mcpuTouched) {
ArgMap::const_iterator I = MCpuArgs->find(Arg);
if (I != MCpuArgs->end()) {
mcpuTouched = true;
mcpu += I->getValue();
continue;
}
}
// Convert 'no-foo' to '-foo'.
if (Arg.find("no-") == 0 && Arg[3] != 0) {
out += '-';
out += Arg.c_str() + 3;
mattr += '-';
mattr += Arg.c_str() + 3;
}
// Convert 'foo' to '+foo'.
else {
out += '+';
out += Arg;
mattr += '+';
mattr += Arg;
}
}
std::string out;
if (mattrTouched)
out += mattr;
if (mcpuTouched)
out += (mattrTouched ? " " : "") + mcpu;
return out;
}
@ -72,6 +94,13 @@ const char* MArchValuesARM[] = { "v4t", "v5t", "v5te", "v6", "v6m", "v6t2",
const unsigned MArchNumKeysARM = NUM_KEYS(MArchKeysARM);
const unsigned MArchMapSize = NextHighestPowerOf2(MArchNumKeysARM);
// -march values that should be forwarded as -mcpu
const char* MArchMCpuKeysARM[] = { "iwmmxt", "ep9312" };
const char* MArchMCpuValuesARM[] = { "iwmmxt", "ep9312"};
const unsigned MArchMCpuNumKeysARM = NUM_KEYS(MArchMCpuKeysARM);
const unsigned MArchMCpuMapSize = NextHighestPowerOf2(MArchMCpuNumKeysARM);
void FillInArgMap(ArgMap& Args, const char* Keys[],
const char* Values[], unsigned NumKeys)
{
@ -86,14 +115,17 @@ void FillInArgMap(ArgMap& Args, const char* Keys[],
/// something llc can understand.
std::string ConvertMArchToMAttr(const StrVec& Opts) {
static ArgMap MArchMap(MArchMapSize);
static ArgMap MArchMCpuMap(MArchMapSize);
static bool StaticDataInitialized = false;
if (!StaticDataInitialized) {
FillInArgMap(MArchMap, MArchKeysARM, MArchValuesARM, MArchNumKeysARM);
FillInArgMap(MArchMCpuMap, MArchMCpuKeysARM,
MArchMCpuValuesARM, MArchMCpuNumKeysARM);
StaticDataInitialized = true;
}
return ConvertToMAttrImpl(Opts, &MArchMap);
return ConvertToMAttrImpl(Opts, &MArchMap, &MArchMCpuMap);
}
// -mcpu values that need to be special-cased.