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Differential D12002 Diff 33985 cfe/trunk/lib/Driver/Tools.cpp

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cfe/trunk/lib/Driver/Tools.cpp

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} }
static bool isNoCommonDefault(const llvm::Triple &Triple) { static bool isNoCommonDefault(const llvm::Triple &Triple) {
switch (Triple.getArch()) { switch (Triple.getArch()) {
default: default:
return false; return false;
case llvm::Triple::xcore: case llvm::Triple::xcore:
case llvm::Triple::wasm32:
case llvm::Triple::wasm64:
return true; return true;
} }
} }
// ARM tools start. // ARM tools start.
// Get SubArch (vN). // Get SubArch (vN).
static int getARMSubArchVersionNumber(const llvm::Triple &Triple) { static int getARMSubArchVersionNumber(const llvm::Triple &Triple) {
▲ Show 20 Lines • Show All 1,053 Lines • ▼ Show 20 Linesstatic const char *getX86TargetCPU(const ArgList &Args,
case llvm::Triple::Bitrig: case llvm::Triple::Bitrig:
return "i686"; return "i686";
default: default:
// Fallback to p4. // Fallback to p4.
return "pentium4"; return "pentium4";
} }
} }
/// Get the (LLVM) name of the WebAssembly cpu we are targeting.
static StringRef getWebAssemblyTargetCPU(const ArgList &Args) {
// If we have -mcpu=, use that.
if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
StringRef CPU = A->getValue();
#ifdef __wasm__
// Handle "native" by examining the host. "native" isn't meaningful when
// cross compiling, so only support this when the host is also WebAssembly.
if (CPU == "native")
return llvm::sys::getHostCPUName();
#endif
return CPU;
}
return "generic";
}
static std::string getCPUName(const ArgList &Args, const llvm::Triple &T, static std::string getCPUName(const ArgList &Args, const llvm::Triple &T,
bool FromAs = false) { bool FromAs = false) {
switch (T.getArch()) { switch (T.getArch()) {
default: default:
return ""; return "";
case llvm::Triple::aarch64: case llvm::Triple::aarch64:
case llvm::Triple::aarch64_be: case llvm::Triple::aarch64_be:
▲ Show 20 Lines • Show All 56 Lines • ▼ Show 20 Lines case llvm::Triple::hexagon:
return "hexagon" + toolchains::HexagonToolChain::GetTargetCPU(Args).str(); return "hexagon" + toolchains::HexagonToolChain::GetTargetCPU(Args).str();
case llvm::Triple::systemz: case llvm::Triple::systemz:
return getSystemZTargetCPU(Args); return getSystemZTargetCPU(Args);
case llvm::Triple::r600: case llvm::Triple::r600:
case llvm::Triple::amdgcn: case llvm::Triple::amdgcn:
return getR600TargetGPU(Args); return getR600TargetGPU(Args);
case llvm::Triple::wasm32:
case llvm::Triple::wasm64:
return getWebAssemblyTargetCPU(Args);
} }
} }
static void AddGoldPlugin(const ToolChain &ToolChain, const ArgList &Args, static void AddGoldPlugin(const ToolChain &ToolChain, const ArgList &Args,
ArgStringList &CmdArgs) { ArgStringList &CmdArgs) {
// Tell the linker to load the plugin. This has to come before AddLinkerInputs // Tell the linker to load the plugin. This has to come before AddLinkerInputs
// as gold requires -plugin to come before any -plugin-opt that -Wl might // as gold requires -plugin to come before any -plugin-opt that -Wl might
// forward. // forward.
▲ Show 20 Lines • Show All 433 Lines • ▼ Show 20 Lines if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access,
options::OPT_munaligned_access)) options::OPT_munaligned_access))
if (A->getOption().matches(options::OPT_mno_unaligned_access)) if (A->getOption().matches(options::OPT_mno_unaligned_access))
Features.push_back("+strict-align"); Features.push_back("+strict-align");
if (Args.hasArg(options::OPT_ffixed_x18) || Triple.isOSDarwin()) if (Args.hasArg(options::OPT_ffixed_x18) || Triple.isOSDarwin())
Features.push_back("+reserve-x18"); Features.push_back("+reserve-x18");
} }
static void getWebAssemblyTargetFeatures(const ArgList &Args,
std::vector<const char *> &Features) {
for (const Arg *A : Args.filtered(options::OPT_m_wasm_Features_Group)) {
StringRef Name = A->getOption().getName();
A->claim();
// Skip over "-m".
assert(Name.startswith("m") && "Invalid feature name.");
Name = Name.substr(1);
bool IsNegative = Name.startswith("no-");
if (IsNegative)
Name = Name.substr(3);
Features.push_back(Args.MakeArgString((IsNegative ? "-" : "+") + Name));
}
}
static void getTargetFeatures(const Driver &D, const llvm::Triple &Triple, static void getTargetFeatures(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args, ArgStringList &CmdArgs, const ArgList &Args, ArgStringList &CmdArgs,
bool ForAS) { bool ForAS) {
std::vector<const char *> Features; std::vector<const char *> Features;
switch (Triple.getArch()) { switch (Triple.getArch()) {
default: default:
break; break;
case llvm::Triple::mips: case llvm::Triple::mips:
Show All 21 Linesstatic void getTargetFeatures(const Driver &D, const llvm::Triple &Triple,
case llvm::Triple::aarch64: case llvm::Triple::aarch64:
case llvm::Triple::aarch64_be: case llvm::Triple::aarch64_be:
getAArch64TargetFeatures(D, Triple, Args, Features); getAArch64TargetFeatures(D, Triple, Args, Features);
break; break;
case llvm::Triple::x86: case llvm::Triple::x86:
case llvm::Triple::x86_64: case llvm::Triple::x86_64:
getX86TargetFeatures(D, Triple, Args, Features); getX86TargetFeatures(D, Triple, Args, Features);
break; break;
case llvm::Triple::wasm32:
case llvm::Triple::wasm64:
getWebAssemblyTargetFeatures(Args, Features);
break;
} }
// Find the last of each feature. // Find the last of each feature.
llvm::StringMap<unsigned> LastOpt; llvm::StringMap<unsigned> LastOpt;
for (unsigned I = 0, N = Features.size(); I < N; ++I) { for (unsigned I = 0, N = Features.size(); I < N; ++I) {
const char *Name = Features[I]; const char *Name = Features[I];
assert(Name[0] == '-' || Name[0] == '+'); assert(Name[0] == '-' || Name[0] == '+');
LastOpt[Name + 1] = I; LastOpt[Name + 1] = I;
▲ Show 20 Lines • Show All 463 Lines • ▼ Show 20 Linesstatic bool areOptimizationsEnabled(const ArgList &Args) {
if (Arg *A = Args.getLastArg(options::OPT_O_Group)) if (Arg *A = Args.getLastArg(options::OPT_O_Group))
return !A->getOption().matches(options::OPT_O0); return !A->getOption().matches(options::OPT_O0);
// Defaults to -O0. // Defaults to -O0.
return false; return false;
} }
static bool shouldUseFramePointerForTarget(const ArgList &Args, static bool shouldUseFramePointerForTarget(const ArgList &Args,
const llvm::Triple &Triple) { const llvm::Triple &Triple) {
switch (Triple.getArch()) {
case llvm::Triple::xcore:
case llvm::Triple::wasm32:
case llvm::Triple::wasm64:
// XCore never wants frame pointers, regardless of OS. // XCore never wants frame pointers, regardless of OS.
if (Triple.getArch() == llvm::Triple::xcore) { // WebAssembly never wants frame pointers.
return false; return false;
default:
break;
} }
if (Triple.isOSLinux()) { if (Triple.isOSLinux()) {
switch (Triple.getArch()) { switch (Triple.getArch()) {
// Don't use a frame pointer on linux if optimizing for certain targets. // Don't use a frame pointer on linux if optimizing for certain targets.
case llvm::Triple::mips64: case llvm::Triple::mips64:
case llvm::Triple::mips64el: case llvm::Triple::mips64el:
case llvm::Triple::mips: case llvm::Triple::mips:
▲ Show 20 Lines • Show All 7,067 Lines • Show Last 20 Lines