Add support for soft/hard float options to the Sparc target
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118514 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index e28078d..4bf2975 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -619,6 +619,51 @@
}
}
+void Clang::AddSparcTargetArgs(const ArgList &Args,
+ ArgStringList &CmdArgs) const {
+ const Driver &D = getToolChain().getDriver();
+
+ if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
+ llvm::StringRef MArch = A->getValue(Args);
+ CmdArgs.push_back("-target-cpu");
+ CmdArgs.push_back(MArch.str().c_str());
+ }
+
+ // Select the float ABI as determined by -msoft-float, -mhard-float, and
+ llvm::StringRef FloatABI;
+ if (Arg *A = Args.getLastArg(options::OPT_msoft_float,
+ options::OPT_mhard_float)) {
+ if (A->getOption().matches(options::OPT_msoft_float))
+ FloatABI = "soft";
+ else if (A->getOption().matches(options::OPT_mhard_float))
+ FloatABI = "hard";
+ }
+
+ // If unspecified, choose the default based on the platform.
+ if (FloatABI.empty()) {
+ switch (getToolChain().getTriple().getOS()) {
+ default:
+ // Assume "soft", but warn the user we are guessing.
+ FloatABI = "soft";
+ D.Diag(clang::diag::warn_drv_assuming_mfloat_abi_is) << "soft";
+ break;
+ }
+ }
+
+ if (FloatABI == "soft") {
+ // Floating point operations and argument passing are soft.
+ //
+ // FIXME: This changes CPP defines, we need -target-soft-float.
+ CmdArgs.push_back("-msoft-float");
+ CmdArgs.push_back("soft");
+ CmdArgs.push_back("-target-feature");
+ CmdArgs.push_back("+soft-float");
+ } else {
+ assert(FloatABI == "hard" && "Invalid float abi!");
+ CmdArgs.push_back("-mhard-float");
+ }
+}
+
void Clang::AddX86TargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
if (!Args.hasFlag(options::OPT_mred_zone,
@@ -1006,6 +1051,10 @@
AddMIPSTargetArgs(Args, CmdArgs);
break;
+ case llvm::Triple::sparc:
+ AddSparcTargetArgs(Args, CmdArgs);
+ break;
+
case llvm::Triple::x86:
case llvm::Triple::x86_64:
AddX86TargetArgs(Args, CmdArgs);