[Mips] Generate warning for invalid '-mnan' and '-march' combinations
This patch generates a warning for invalid combination of '-mnan' and
'-march' options, it properly sets NaN encoding for a given '-march',
and it passes a proper NaN encoding to the assembler.
Patch by Vladimir Radosavljevic.
Differential Revision: http://reviews.llvm.org/D8170
llvm-svn: 234882
diff --git a/clang/lib/Driver/Tools.h b/clang/lib/Driver/Tools.h
index e8edaeb..33fadd1 100644
--- a/clang/lib/Driver/Tools.h
+++ b/clang/lib/Driver/Tools.h
@@ -234,6 +234,11 @@
}
namespace mips {
+ typedef enum {
+ NanLegacy = 1,
+ Nan2008 = 2
+ } NanEncoding;
+ NanEncoding getSupportedNanEncoding(StringRef &CPU);
void getMipsCPUAndABI(const llvm::opt::ArgList &Args,
const llvm::Triple &Triple, StringRef &CPUName,
StringRef &ABIName);