Authors: Andreas Krall
- $Id: codegen.h 2444 2005-05-11 12:51:53Z twisti $
+ $Id: codegen.h 2628 2005-06-09 20:39:37Z twisti $
*/
#include "vm/jit/mips/types.h"
-/* Macro for stack.c to set Argument Stackslots */
-
-/* SET_ARG_STACKSLOTS ***************************************************
-Macro for stack.c to set Argument Stackslots
-
-Sets the first call_argcount stackslots of curstack to varkind ARGVAR, if
-they to not have the SAVEDVAR flag set. According to the calling
-conventions these stackslots are assigned argument registers or memory
-locations
-
---- in
-i,call_argcount: Number of arguments for this method
-call_intargshift: Amount of shifted argument registers in case of native
- method invokation or 0.
-curstack: instack of the method invokation
-
---- uses
-i, copy
-
---- out
-copy: Points to first stackslot after the parameters
-rd->argintreguse: max. number of used integer argument register so far
-rd->argfltreguse: max. number of used float argument register so far
-rd->ifmemuse: max. number of stackslots used for spilling parameters
- so far
-************************************************************************/
-/* Todo ****************************************************************
-Change createnativestub in codegen.c to not destroy all not used argument
-registers in case of parametershift and change ICMD_xRETURN in codege.c
-Then delete #define DONT_USE_ARGREGS and delete the corresponding #ifdef
-part in reg.inc
-************************************************************************/
-#define SET_ARG_STACKSLOTS { \
- s4 stacksize; /* Stackoffset for spilled arg */ \
- s4 iarg = 0; \
- s4 farg = 0; \
- \
- stacksize = (i < rd->intreg_argnum)? 0 : (i - rd->intreg_argnum); \
- if (rd->ifmemuse < stacksize) \
- rd->ifmemuse = stacksize; \
- \
- copy = curstack; \
- for (;i > 0; i--) { \
- if (IS_FLT_DBL_TYPE(copy->type)) { \
- if (farg == 0) farg = i; \
- } else { \
- if (iarg == 0) iarg = i; \
- } \
- copy = copy->prev; \
- } \
- if (rd->argintreguse < iarg) \
- rd->argintreguse = iarg; \
- if (rd->argfltreguse < farg) \
- rd->argfltreguse = farg; \
- \
- i = call_argcount; \
- copy = curstack; \
- while (--i >= 0) { \
- if (!(copy->flags & SAVEDVAR)) { \
- copy->varnum = i; \
- copy->varkind = ARGVAR; \
- if (IS_FLT_DBL_TYPE(copy->type)) { \
- if (i < rd->fltreg_argnum) { \
- copy->flags = 0; \
- copy->regoff = rd->argfltregs[i]; \
- } else { \
- copy->flags = INMEMORY; \
- copy->regoff = --stacksize; \
- } \
- } else { /* int arg */ \
- if (i < rd->intreg_argnum) { \
- copy->flags = 0; \
- copy->regoff = rd->argintregs[i]; \
- } else { \
- copy->flags = INMEMORY; \
- copy->regoff = --stacksize; \
- } \
- } \
- } \
- copy = copy->prev; \
- } \
- }
-
-
/* additional functions and macros to generate code ***************************/
-/* #define BlockPtrOfPC(pc) block+block_index[pc] */
#define BlockPtrOfPC(pc) ((basicblock *) iptr->target)
#define M_FLTMOVE(a,b) if (a != b) { M_DMOV(a, b); }
#define M_TFLTMOVE(t,a,b) \
- {if(a!=b) \
- if ((t)==TYPE_DBL) \
- {M_DMOV(a,b);} \
- else {M_FMOV(a,b);} \
- }
+ do { \
+ if ((a) != (b)) \
+ if ((t) == TYPE_DBL) { \
+ M_DMOV(a,b); \
+ } else { \
+ M_FMOV(a,b); \
+ } \
+ } while (0)
#define M_TFLD(t,a,b,disp) \
- if ((t)==TYPE_DBL) \
- {M_DLD(a,b,disp);} \
- else \
- {M_FLD(a,b,disp);}
+ if ((t) == TYPE_DBL) { \
+ M_DLD(a,b,disp); \
+ } else { \
+ M_FLD(a,b,disp); \
+ }
#define M_TFST(t,a,b,disp) \
if ((t)==TYPE_DBL) \
#define M_CMOVF(a,b) M_RTYPE(0x00,a,0,b,0,1)
#define M_CMOVT(a,b) M_RTYPE(0x00,a,1,b,0,1)
+
/*
* Load Address pseudo instruction:
* -n32 addressing mode -> 32 bit addrs, -64 addressing mode -> 64 bit addrs
*/
-#if POINTERSIZE==8
+#if SIZEOF_VOID_P == 8
+
#define POINTERSHIFT 3
+
#define M_ALD(a,b,disp) M_LLD(a,b,disp)
#define M_AST(a,b,disp) M_LST(a,b,disp)
#define M_AADD(a,b,c) M_LADD(a,b,c)
+#define M_AADD_IMM(a,b,c) M_LADD_IMM(a,b,c)
#define M_ASLL_IMM(a,b,c) M_LSLL_IMM(a,b,c)
#define M_LDA(a,b,disp) M_LADD_IMM(b,disp,a) /* a = b+disp */
+
#else
+
#define POINTERSHIFT 2
+
#define M_ALD(a,b,disp) M_ILD(a,b,disp)
#define M_AST(a,b,disp) M_IST(a,b,disp)
#define M_AADD(a,b,c) M_IADD(a,b,c)
+#define M_AADD_IMM(a,b,c) M_IADD_IMM(a,b,c)
#define M_ASLL_IMM(a,b,c) M_ISLL_IMM(a,b,c)
#define M_LDA(a,b,disp) M_IADD_IMM(b,disp,a) /* a = b+disp */
-#endif
-/* macros for special commands (see an Alpha-manual for description) **********/
-
-#if 0
-#define M_CMOVEQ(a,b,c) M_OP3 (0x11,0x24, a,b,c,0) /* a==0 ? c=b */
-#define M_CMOVNE(a,b,c) M_OP3 (0x11,0x26, a,b,c,0) /* a!=0 ? c=b */
-#define M_CMOVLT(a,b,c) M_OP3 (0x11,0x44, a,b,c,0) /* a< 0 ? c=b */
-#define M_CMOVGE(a,b,c) M_OP3 (0x11,0x46, a,b,c,0) /* a>=0 ? c=b */
-#define M_CMOVLE(a,b,c) M_OP3 (0x11,0x64, a,b,c,0) /* a<=0 ? c=b */
-#define M_CMOVGT(a,b,c) M_OP3 (0x11,0x66, a,b,c,0) /* a> 0 ? c=b */
-
-#define M_CMOVEQ_IMM(a,b,c) M_OP3 (0x11,0x24, a,b,c,1) /* a==0 ? c=b */
-#define M_CMOVNE_IMM(a,b,c) M_OP3 (0x11,0x26, a,b,c,1) /* a!=0 ? c=b */
-#define M_CMOVLT_IMM(a,b,c) M_OP3 (0x11,0x44, a,b,c,1) /* a< 0 ? c=b */
-#define M_CMOVGE_IMM(a,b,c) M_OP3 (0x11,0x46, a,b,c,1) /* a>=0 ? c=b */
-#define M_CMOVLE_IMM(a,b,c) M_OP3 (0x11,0x64, a,b,c,1) /* a<=0 ? c=b */
-#define M_CMOVGT_IMM(a,b,c) M_OP3 (0x11,0x66, a,b,c,1) /* a> 0 ? c=b */
#endif
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