[mips][mt][7/7] Add driver option for the MIPS MT ASE.

Reviewers: atanasyan, slthakur

Differential Revision: https://reviews.llvm.org/D35254

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@307847 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index cdd4c94c432e31fe58a8d2610b8c8df12c6f32b0..861dfbf1916ef03f6c2096808bfdf07a9b2f083a 100644 (file)
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -2027,6 +2027,10 @@ def mmsa : Flag<["-"], "mmsa">, Group<m_Group>,
   HelpText<"Enable MSA ASE (MIPS only)">;
 def mno_msa : Flag<["-"], "mno-msa">, Group<m_Group>,
   HelpText<"Disable MSA ASE (MIPS only)">;
+def mmt : Flag<["-"], "mmt">, Group<m_Group>,
+  HelpText<"Enable MT ASE (MIPS only)">;
+def mno_mt : Flag<["-"], "mno-mt">, Group<m_Group>,
+  HelpText<"Disable MT ASE (MIPS only)">;
 def mfp64 : Flag<["-"], "mfp64">, Group<m_Group>,
   HelpText<"Use 64-bit floating point registers (MIPS only)">;
 def mfp32 : Flag<["-"], "mfp32">, Group<m_Group>,

diff --git a/lib/Driver/ToolChains/Arch/Mips.cpp b/lib/Driver/ToolChains/Arch/Mips.cpp
index c336bb17f02924a1158cd71335bdef564ccc49d8..b45dcd6db678075cd28057592686a3fba7c18e48 100644 (file)
--- a/lib/Driver/ToolChains/Arch/Mips.cpp
+++ b/lib/Driver/ToolChains/Arch/Mips.cpp
@@ -301,6 +301,7 @@ void mips::getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple,
                    "nomadd4");
   AddTargetFeature(Args, Features, options::OPT_mlong_calls,
                    options::OPT_mno_long_calls, "long-calls");
+  AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt,"mt");
 }
 
 mips::NanEncoding mips::getSupportedNanEncoding(StringRef &CPU) {

diff --git a/test/Driver/mips-features.c b/test/Driver/mips-features.c
index 9305f99051d87ee1f7cb9401d166ca97d204c8b5..b228a2d5781d426dc696dba9b2272a0bf518d2c4 100644 (file)
--- a/test/Driver/mips-features.c
+++ b/test/Driver/mips-features.c
@@ -70,6 +70,18 @@
 // RUN:   | FileCheck --check-prefix=CHECK-NOMMSA %s
 // CHECK-NOMMSA: "-target-feature" "-msa"
 //
+// -mmt
+// RUN: %clang -target mips-linux-gnu -### -c %s \
+// RUN:     -mno-mt -mmt 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-MMT %s
+// CHECK-MMT: "-target-feature" "+mt"
+//
+// -mno-mt
+// RUN: %clang -target mips-linux-gnu -### -c %s \
+// RUN:     -mmt -mno-mt 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-NOMMT %s
+// CHECK-NOMMT: "-target-feature" "-mt"
+//
 // -modd-spreg
 // RUN: %clang -target mips-linux-gnu -### -c %s -mno-odd-spreg -modd-spreg 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-MODDSPREG %s