[mips] Add support to '.set mips64r2'.

The '.set mips64r2' directive enables the feature Mips:FeatureMips64r2
from assembly. Note that it doesn't modify the ELF header as opposed
to the use of -mips64r2 from the command-line. The reason for this
is that we want to be as compatible as possible with existing assemblers
like GAS.

llvm-svn: 204815

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index afe501b..f21dbed3 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -105,6 +105,10 @@ void MipsTargetAsmStreamer::emitDirectiveSetMips32R2() {
   OS << "\t.set\tmips32r2\n";
 }
 
+void MipsTargetAsmStreamer::emitDirectiveSetMips64R2() {
+  OS << "\t.set\tmips64r2\n";
+}
+
 void MipsTargetAsmStreamer::emitDirectiveSetDsp() {
   OS << "\t.set\tdsp\n";
 }
@@ -355,6 +359,10 @@ void MipsTargetELFStreamer::emitDirectiveSetMips32R2() {
   // No action required for ELF output.
 }
 
+void MipsTargetELFStreamer::emitDirectiveSetMips64R2() {
+  // No action required for ELF output.
+}
+
 void MipsTargetELFStreamer::emitDirectiveSetDsp() {
   // No action required for ELF output.
 }