[mips] implement .set dspr2 directive

Implement .set dspr2 directive with appropriate feature bits. This
directive is a counterpart of -mattr=dspr2 command line option with the
exception that it does not influence elf header flags.

Patch by Milos Stojanovic.

Differential Revision: https://reviews.llvm.org/D38537

llvm-svn: 314994

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index 2907b771585..f01a800afc5 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -98,6 +98,7 @@ void MipsTargetStreamer::emitDirectiveSetHardFloat() {
   forbidModuleDirective();
 }
 void MipsTargetStreamer::emitDirectiveSetDsp() { forbidModuleDirective(); }
+void MipsTargetStreamer::emitDirectiveSetDspr2() { forbidModuleDirective(); }
 void MipsTargetStreamer::emitDirectiveSetNoDsp() { forbidModuleDirective(); }
 void MipsTargetStreamer::emitDirectiveCpLoad(unsigned RegNo) {}
 bool MipsTargetStreamer::emitDirectiveCpRestore(
@@ -547,6 +548,11 @@ void MipsTargetAsmStreamer::emitDirectiveSetDsp() {
   MipsTargetStreamer::emitDirectiveSetDsp();
 }
 
+void MipsTargetAsmStreamer::emitDirectiveSetDspr2() {
+  OS << "\t.set\tdspr2\n";
+  MipsTargetStreamer::emitDirectiveSetDspr2();
+}
+
 void MipsTargetAsmStreamer::emitDirectiveSetNoDsp() {
   OS << "\t.set\tnodsp\n";
   MipsTargetStreamer::emitDirectiveSetNoDsp();