[mips] Add assembler support for .set msa/nomsa directive.

Summary:
These directives are used to toggle whether the assembler accepts MSA-specific instructions or not.

Patch by Matheus Almeida and Toma Tabacu.

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D4783

llvm-svn: 215099

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index 0f02107b81a..7a8230fdebf 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -38,6 +38,8 @@ void MipsTargetStreamer::emitDirectiveSetReorder() {}
 void MipsTargetStreamer::emitDirectiveSetNoReorder() {}
 void MipsTargetStreamer::emitDirectiveSetMacro() {}
 void MipsTargetStreamer::emitDirectiveSetNoMacro() {}
+void MipsTargetStreamer::emitDirectiveSetMsa() { setCanHaveModuleDir(false); }
+void MipsTargetStreamer::emitDirectiveSetNoMsa() { setCanHaveModuleDir(false); }
 void MipsTargetStreamer::emitDirectiveSetAt() {}
 void MipsTargetStreamer::emitDirectiveSetNoAt() {}
 void MipsTargetStreamer::emitDirectiveEnd(StringRef Name) {}
@@ -118,6 +120,16 @@ void MipsTargetAsmStreamer::emitDirectiveSetNoMacro() {
   setCanHaveModuleDir(false);
 }
 
+void MipsTargetAsmStreamer::emitDirectiveSetMsa() {
+  OS << "\t.set\tmsa\n";
+  MipsTargetStreamer::emitDirectiveSetMsa();
+}
+
+void MipsTargetAsmStreamer::emitDirectiveSetNoMsa() {
+  OS << "\t.set\tnomsa\n";
+  MipsTargetStreamer::emitDirectiveSetNoMsa();
+}
+
 void MipsTargetAsmStreamer::emitDirectiveSetAt() {
   OS << "\t.set\tat\n";
   setCanHaveModuleDir(false);