Subzero, MIPS32: Floating point support in ELF output

src/IceAssemblerMIPS32.h

Index: src/IceAssemblerMIPS32.h
diff --git a/src/IceAssemblerMIPS32.h b/src/IceAssemblerMIPS32.h
index eefb1b2004e7f0e55c73013bba50967dd4b17d15..8ce8d94f9b9f4a2a4c881c835cade1098dcb5547 100644
--- a/src/IceAssemblerMIPS32.h
+++ b/src/IceAssemblerMIPS32.h
@@ -27,6 +27,13 @@ namespace MIPS32 {
 using IValueT = uint32_t;
 using IOffsetT = int32_t;
 
+enum FPInstDataFormat {
+  SinglePrecision = 16,
+  DoublePrecision = 17,
+  Word = 20,
+  Long = 21
+};
+
 class AssemblerMIPS32 : public Assembler {
   AssemblerMIPS32(const AssemblerMIPS32 &) = delete;
   AssemblerMIPS32 &operator=(const AssemblerMIPS32 &) = delete;
@@ -56,15 +63,38 @@ public:
   void emitRtRsImm16(IValueT Opcode, const Operand *OpRt, const Operand *OpRs,
                      const uint32_t Imm, const char *InsnName);

[Jim Stichnoth, 2016/09/15 04:53:45]

"const uint32_t" is kind of odd as a function argument.  Should all these be
just "uint32_t"?

[obucinac, 2016/09/15 13:35:06]

I dont have the opinion on this, I was just following the convention I found in
the file.

Removed.

 
+  void emitFtRsImm16(IValueT Opcode, const Operand *OpFt, const Operand *OpRs,
+                     const uint32_t Imm, const char *InsnName);
+
   void emitRdRtSa(IValueT Opcode, const Operand *OpRd, const Operand *OpRt,
                   const uint32_t Sa, const char *InsnName);
 
   void emitRdRsRt(IValueT Opcode, const Operand *OpRd, const Operand *OpRs,
                   const Operand *OpRt, const char *InsnName);
 
+  void emitFPFormatFtFsFd(IValueT Opcode, FPInstDataFormat Format,
+                          const Operand *OpFd, const Operand *OpFs,
+                          const Operand *OpFt, const char *InsnName);
+
   void emitBr(const CondMIPS32::Cond Cond, const Operand *OpRs,
               const Operand *OpRt, IOffsetT Offset);
 
+  void add_d(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
+  void add_s(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
+  void div_d(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
+  void div_s(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
+  void mul_d(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
+  void mul_s(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
+  void sub_d(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
+  void sub_s(const Operand *OpFt, const Operand *OpFs, const Operand *OpFd);
+
   void addiu(const Operand *OpRt, const Operand *OpRs, const uint32_t Imm);
 
   void slti(const Operand *OpRt, const Operand *OpRs, const uint32_t Imm);