Add support for MIPS' floating ABIs (hard, soft and single) to clang driver.
Patch by Simon Atanasyan.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153348 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index a4b5b47..d4e5d2d 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -3440,11 +3440,19 @@
namespace {
class MipsTargetInfoBase : public TargetInfo {
std::string CPU;
+ bool SoftFloat;
+ bool SingleFloat;
+
protected:
std::string ABI;
+
public:
MipsTargetInfoBase(const std::string& triple, const std::string& ABIStr)
- : TargetInfo(triple), ABI(ABIStr) {}
+ : TargetInfo(triple),
+ SoftFloat(false), SingleFloat(false),
+ ABI(ABIStr)
+ {}
+
virtual const char *getABI() const { return ABI.c_str(); }
virtual bool setABI(const std::string &Name) = 0;
virtual bool setCPU(const std::string &Name) {
@@ -3455,8 +3463,19 @@
Features[ABI] = true;
Features[CPU] = true;
}
+
virtual void getArchDefines(const LangOptions &Opts,
- MacroBuilder &Builder) const = 0;
+ MacroBuilder &Builder) const {
+ if (SoftFloat)
+ Builder.defineMacro("__mips_soft_float", Twine(1));
+ else if (SingleFloat)
+ Builder.defineMacro("__mips_single_float", Twine(1));
+ else if (!SoftFloat && !SingleFloat)
+ Builder.defineMacro("__mips_hard_float", Twine(1));
+ else
+ llvm_unreachable("Invalid float ABI for Mips.");
+ }
+
virtual void getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const = 0;
virtual void getTargetBuiltins(const Builtin::Info *&Records,
@@ -3507,6 +3526,37 @@
// FIXME: Implement!
return "";
}
+
+ virtual bool setFeatureEnabled(llvm::StringMap<bool> &Features,
+ StringRef Name,
+ bool Enabled) const {
+ if (Name == "soft-float" || Name == "single-float") {
+ Features[Name] = Enabled;
+ return true;
+ }
+ return false;
+ }
+
+ virtual void HandleTargetFeatures(std::vector<std::string> &Features) {
+ SoftFloat = false;
+ SingleFloat = false;
+
+ for (std::vector<std::string>::iterator it = Features.begin(),
+ ie = Features.end(); it != ie; ++it) {
+ if (*it == "+single-float") {
+ SingleFloat = true;
+ break;
+ }
+
+ if (*it == "+soft-float") {
+ SoftFloat = true;
+ // This option is front-end specific.
+ // Do not need to pass it to the backend.
+ Features.erase(it);
+ break;
+ }
+ }
+ }
};
class Mips32TargetInfoBase : public MipsTargetInfoBase {
@@ -3525,6 +3575,8 @@
}
virtual void getArchDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
+ MipsTargetInfoBase::getArchDefines(Opts, Builder);
+
Builder.defineMacro("_MIPS_SZPTR", Twine(getPointerWidth(0)));
Builder.defineMacro("_MIPS_SZINT", Twine(getIntWidth()));
Builder.defineMacro("_MIPS_SZLONG", Twine(getLongWidth()));
@@ -3642,6 +3694,8 @@
}
virtual void getArchDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
+ MipsTargetInfoBase::getArchDefines(Opts, Builder);
+
if (ABI == "n32") {
Builder.defineMacro("__mips_n32");
Builder.defineMacro("_ABIN32", "2");