commit 27c398e38cbdd6e8efa59df57de217aa313b63fb
author Vladimir Medic <Vladimir.Medic@imgtec.com> Wed Mar 05 11:05:09 2014 +0000
committer Vladimir Medic <Vladimir.Medic@imgtec.com> Wed Mar 05 11:05:09 2014 +0000
tree b4c4f6f646fea5ab5be6953a5f5200f5cdbcc4a2
parent cef10edcb2f712f15accad2e6f7f8d6a956fcc1f

This patch implements .set dsp directive and sets appropriate feature bits.This directive is a counterpart of -mattr=dsp command line option with the exception that it does not influence elf header flags. The usage example is gives in test file.

llvm-svn: 202966

llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp

diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
index c6bee63..d010a97 100644
--- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -2460,6 +2460,13 @@
     setFeatureBits(Mips::FeatureMips32r2,"mips32r2");
     getTargetStreamer().emitDirectiveSetMips32R2();
     return false;
+  } else if (Tok.getString() == "dsp") {
+    Parser.Lex(); // Eat token.
+    if (getLexer().isNot(AsmToken::EndOfStatement))
+      return reportParseError("unexpected token in .set directive");
+    setFeatureBits(Mips::FeatureDSP, "dsp");
+    getTargetStreamer().emitDirectiveSetDsp();
+    return false;
   } else {
     // It is just an identifier, look for an assignment.
     parseSetAssignment();

llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp

diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index ef6d8d4..e9ce4b8 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -101,6 +101,9 @@
   OS << "\t.set\tmips32r2\n";
 }
 
+void MipsTargetAsmStreamer::emitDirectiveSetDsp() {
+  OS << "\t.set\tdsp\n";
+}
 // Print a 32 bit hex number with all numbers.
 static void printHex32(unsigned Value, raw_ostream &OS) {
   OS << "0x";
@@ -310,3 +313,7 @@
 void MipsTargetELFStreamer::emitDirectiveSetMips32R2() {
   // No action required for ELF output.
 }
+
+void MipsTargetELFStreamer::emitDirectiveSetDsp() {
+  // No action required for ELF output.
+}

llvm/lib/Target/Mips/MipsTargetStreamer.h

diff --git a/llvm/lib/Target/Mips/MipsTargetStreamer.h b/llvm/lib/Target/Mips/MipsTargetStreamer.h
index b113267..7917b77 100644
--- a/llvm/lib/Target/Mips/MipsTargetStreamer.h
+++ b/llvm/lib/Target/Mips/MipsTargetStreamer.h
@@ -41,6 +41,7 @@
   virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) = 0;
 
   virtual void emitDirectiveSetMips32R2() = 0;
+  virtual void emitDirectiveSetDsp() = 0;
 };
 
 // This part is for ascii assembly output
@@ -71,6 +72,7 @@
   virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
 
   virtual void emitDirectiveSetMips32R2();
+  virtual void emitDirectiveSetDsp();
 };
 
 // This part is for ELF object output
@@ -108,6 +110,7 @@
   virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
 
   virtual void emitDirectiveSetMips32R2();
+  virtual void emitDirectiveSetDsp();
 };
 }
 #endif