MIPS64, part 2: Add MIPS64 hard-float JIT compiler backend.

Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
Sponsored by Cisco Systems, Inc.

src/lj_target_mips.h

@@ -81,7 +81,7 @@ enum {
    RID2RSET(RID_SYS1)|RID2RSET(RID_SYS2)|RID2RSET(RID_JGL)|RID2RSET(RID_GP))
 #define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) - RSET_FIXED)
 #if LJ_SOFTFP
-#define RSET_FPR	0
+#define RSET_FPR		0
 #else
 #if LJ_32
 #define RSET_FPR \
@@ -90,11 +90,11 @@ enum {
    RID2RSET(RID_F16)|RID2RSET(RID_F18)|RID2RSET(RID_F20)|RID2RSET(RID_F22)|\
    RID2RSET(RID_F24)|RID2RSET(RID_F26)|RID2RSET(RID_F28)|RID2RSET(RID_F30))
 #else
-#define RSET_FPR	RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR)
+#define RSET_FPR		RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR)
 #endif
 #endif
-#define RSET_ALL	(RSET_GPR|RSET_FPR)
-#define RSET_INIT	RSET_ALL
+#define RSET_ALL		(RSET_GPR|RSET_FPR)
+#define RSET_INIT		RSET_ALL
 
 #define RSET_SCRATCH_GPR \
   (RSET_RANGE(RID_R1, RID_R15+1)|\
@@ -192,8 +192,12 @@ static LJ_AINLINE uint32_t *exitstub_trace_addr_(uint32_t *p)
 #define MIPSF_F(r)	((r) << 6)
 #define MIPSF_A(n)	((n) << 6)
 #define MIPSF_M(n)	((n) << 11)
+#define MIPSF_L(n)	((n) << 6)
 
 typedef enum MIPSIns {
+  MIPSI_D = 0x38,
+  MIPSI_DV = 0x10,
+  MIPSI_D32 = 0x3c,
   /* Integer instructions. */
   MIPSI_MOVE = 0x00000025,
   MIPSI_NOP = 0x00000000,
@@ -202,22 +206,27 @@ typedef enum MIPSIns {
   MIPSI_LU = 0x34000000,
   MIPSI_LUI = 0x3c000000,
 
-  MIPSI_ADDIU = 0x24000000,
+  MIPSI_AND = 0x00000024,
   MIPSI_ANDI = 0x30000000,
+  MIPSI_OR = 0x00000025,
   MIPSI_ORI = 0x34000000,
+  MIPSI_XOR = 0x00000026,
   MIPSI_XORI = 0x38000000,
+  MIPSI_NOR = 0x00000027,
+
+  MIPSI_SLT = 0x0000002a,
+  MIPSI_SLTU = 0x0000002b,
   MIPSI_SLTI = 0x28000000,
   MIPSI_SLTIU = 0x2c000000,
 
   MIPSI_ADDU = 0x00000021,
+  MIPSI_ADDIU = 0x24000000,
+  MIPSI_SUB = 0x00000022,
   MIPSI_SUBU = 0x00000023,
   MIPSI_MUL = 0x70000002,
-  MIPSI_AND = 0x00000024,
-  MIPSI_OR = 0x00000025,
-  MIPSI_XOR = 0x00000026,
-  MIPSI_NOR = 0x00000027,
-  MIPSI_SLT = 0x0000002a,
-  MIPSI_SLTU = 0x0000002b,
+  MIPSI_DIV = 0x0000001a,
+  MIPSI_DIVU = 0x0000001b,
+
   MIPSI_MOVZ = 0x0000000a,
   MIPSI_MOVN = 0x0000000b,
   MIPSI_MFHI = 0x00000010,
@@ -228,14 +237,18 @@ typedef enum MIPSIns {
   MIPSI_SRL = 0x00000002,
   MIPSI_SRA = 0x00000003,
   MIPSI_ROTR = 0x00200002,	/* MIPSXXR2 */
+  MIPSI_DROTR = 0x0020003a,
+  MIPSI_DROTR32 = 0x0020003e,
   MIPSI_SLLV = 0x00000004,
   MIPSI_SRLV = 0x00000006,
   MIPSI_SRAV = 0x00000007,
   MIPSI_ROTRV = 0x00000046,	/* MIPSXXR2 */
+  MIPSI_DROTRV = 0x00000056,
 
   MIPSI_SEB = 0x7c000420,	/* MIPSXXR2 */
   MIPSI_SEH = 0x7c000620,	/* MIPSXXR2 */
   MIPSI_WSBH = 0x7c0000a0,	/* MIPSXXR2 */
+  MIPSI_DSBH = 0x7c0000a4,
 
   MIPSI_B = 0x10000000,
   MIPSI_J = 0x08000000,
@@ -253,7 +266,9 @@ typedef enum MIPSIns {
 
   /* Load/store instructions. */
   MIPSI_LW = 0x8c000000,
+  MIPSI_LD = 0xdc000000,
   MIPSI_SW = 0xac000000,
+  MIPSI_SD = 0xfc000000,
   MIPSI_LB = 0x80000000,
   MIPSI_SB = 0xa0000000,
   MIPSI_LH = 0x84000000,
@@ -266,13 +281,48 @@ typedef enum MIPSIns {
   MIPSI_SDC1 = 0xf4000000,
 
   /* MIPS64 instructions. */
-  MIPSI_DSLL = 0x00000038,
-  MIPSI_LD = 0xdc000000,
+  MIPSI_DADD = 0x0000002c,
+  MIPSI_DADDI = 0x60000000,
+  MIPSI_DADDU = 0x0000002d,
   MIPSI_DADDIU = 0x64000000,
-  MIPSI_SD = 0xfc000000,
-  MIPSI_DMFC1 = 0x44200000,
+  MIPSI_DSUB = 0x0000002e,
+  MIPSI_DSUBU = 0x0000002f,
+  MIPSI_DDIV = 0x0000001e,
+  MIPSI_DDIVU = 0x0000001f,
+  MIPSI_DMULT = 0x0000001c,
+  MIPSI_DMULTU = 0x0000001d,
+
+  MIPSI_DSLL = 0x00000038,
+  MIPSI_DSRL = 0x0000003a,
+  MIPSI_DSLLV = 0x00000014,
+  MIPSI_DSRLV = 0x00000016,
+  MIPSI_DSRA = 0x0000003b,
+  MIPSI_DSRAV = 0x00000017,
   MIPSI_DSRA32 = 0x0000003f,
-  MIPSI_MFHC1 = 0x44600000,
+  MIPSI_DSLL32 = 0x0000003c,
+  MIPSI_DSRL32 = 0x0000003e,
+  MIPSI_DSHD = 0x7c000164,
+
+  MIPSI_AADDU = LJ_32 ? MIPSI_ADDU : MIPSI_DADDU,
+  MIPSI_AADDIU = LJ_32 ? MIPSI_ADDIU : MIPSI_DADDIU,
+  MIPSI_ASUBU = LJ_32 ? MIPSI_SUBU : MIPSI_DSUBU,
+  MIPSI_AL = LJ_32 ? MIPSI_LW : MIPSI_LD,
+  MIPSI_AS = LJ_32 ? MIPSI_SW : MIPSI_SD,
+
+  /* Extract/insert instructions. */
+  MIPSI_DEXTM = 0x7c000001,
+  MIPSI_DEXTU = 0x7c000002,
+  MIPSI_DEXT = 0x7c000003,
+  MIPSI_DINSM = 0x7c000005,
+  MIPSI_DINSU = 0x7c000006,
+  MIPSI_DINS = 0x7c000007,
+
+  MIPSI_RINT_D = 0x4620001a,
+  MIPSI_RINT_S = 0x4600001a,
+  MIPSI_RINT = 0x4400001a,
+  MIPSI_FLOOR_D = 0x4620000b,
+  MIPSI_CEIL_D = 0x4620000a,
+  MIPSI_ROUND_D = 0x46200008,
 
   /* FP instructions. */
   MIPSI_MOV_S = 0x46000006,
@@ -298,24 +348,30 @@ typedef enum MIPSIns {
   MIPSI_CVT_W_D = 0x46200024,
   MIPSI_CVT_S_W = 0x46800020,
   MIPSI_CVT_D_W = 0x46800021,
+  MIPSI_CVT_S_L = 0x46a00020,
+  MIPSI_CVT_D_L = 0x46a00021,
 
   MIPSI_TRUNC_W_S = 0x4600000d,
   MIPSI_TRUNC_W_D = 0x4620000d,
+  MIPSI_TRUNC_L_S = 0x46000009,
+  MIPSI_TRUNC_L_D = 0x46200009,
   MIPSI_FLOOR_W_S = 0x4600000f,
   MIPSI_FLOOR_W_D = 0x4620000f,
 
   MIPSI_MFC1 = 0x44000000,
   MIPSI_MTC1 = 0x44800000,
+  MIPSI_DMTC1 = 0x44a00000,
+  MIPSI_DMFC1 = 0x44200000,
 
   MIPSI_BC1F = 0x45000000,
   MIPSI_BC1T = 0x45010000,
 
   MIPSI_C_EQ_D = 0x46200032,
+  MIPSI_C_OLT_S = 0x46000034,
   MIPSI_C_OLT_D = 0x46200034,
   MIPSI_C_ULT_D = 0x46200035,
   MIPSI_C_OLE_D = 0x46200036,
   MIPSI_C_ULE_D = 0x46200037,
-
 } MIPSIns;
 
 #endif