Reapply "Frontend support for Nios2 target"
Summary:
- Implements TargetInfo class for Nios2 target.
- Enables handling of -march and -mcpu options for Nios2 target.
- Definition of Nios2 builtin functions.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D33356
Author: belickim <mateusz.belicki@intel.com>
llvm-svn: 306383
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 5e360f6..1991b2e 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -215,6 +215,21 @@
return "";
}
+static std::string getNios2TargetCPU(const ArgList &Args) {
+ Arg *A = Args.getLastArg(options::OPT_mcpu_EQ);
+ if (!A)
+ A = Args.getLastArg(options::OPT_march_EQ);
+
+ if (!A)
+ return "";
+
+ const char *name = A->getValue();
+ return llvm::StringSwitch<const char *>(name)
+ .Case("r1", "nios2r1")
+ .Case("r2", "nios2r2")
+ .Default(name);
+}
+
static std::string getLanaiTargetCPU(const ArgList &Args) {
if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
return A->getValue();
@@ -267,6 +282,10 @@
return A->getValue();
return "";
+ case llvm::Triple::nios2: {
+ return getNios2TargetCPU(Args);
+ }
+
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::mips64: