/* Definitions of target machine for GNU compiler.
For NCR Tower 32/4x0 and 32/6x0 running System V Release 3.
- Copyright (C) 1990, 1993 Free Software Foundation, Inc.
+ Copyright (C) 1990, 1993, 1994 Free Software Foundation, Inc.
Written by Robert Andersson (ra@intsys.no), International Systems,
Oslo, Norway.
#define FUNCTION_PROFILER(FILE, LABEL_NO) \
fprintf (FILE, "\tmov.l &LP%%%d,%%a0\n\tjsr mcount%%\n", (LABEL_NO))
-/* The prologue is identical to the one in m68k.h except that the
- assembler syntax is different. */
-
-#undef FUNCTION_PROLOGUE
-#define FUNCTION_PROLOGUE(FILE, SIZE) \
-{ register int regno; \
- register int mask = 0; \
- extern char call_used_regs[]; \
- int fsize = ((SIZE) + 3) & -4; \
- if (frame_pointer_needed) \
- { if (TARGET_68020 || fsize < 0x8000) \
- fprintf (FILE, "\tlink %%a6,&%d\n", -fsize); \
- else \
- fprintf (FILE, "\tlink %%a6,&0\n\tsub.l &%d,%%sp\n", fsize); } \
- for (regno = 16; regno < 24; regno++) \
- if (regs_ever_live[regno] && ! call_used_regs[regno]) \
- mask |= 1 << (regno - 16); \
- if ((mask & 0xff) != 0) \
- fprintf (FILE, "\tfmovm &0x%x,-(%%sp)\n", mask & 0xff); \
- mask = 0; \
- for (regno = 0; regno < 16; regno++) \
- if (regs_ever_live[regno] && ! call_used_regs[regno]) \
- mask |= 1 << (15 - regno); \
- if (frame_pointer_needed) \
- mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \
- if (exact_log2 (mask) >= 0) \
- fprintf (FILE, "\tmov.l %s,-(%%sp)\n", reg_names[15 - exact_log2 (mask)]); \
- else if (mask) fprintf (FILE, "\tmovm.l &0x%x,-(%%sp)\n", mask); }
-
-/* The epilogue is identical to the one in m68k.h except that:
- a) The assembler syntax is different.
- b) Pointers are returned both in %d0 and %a0.
- c) FUNCTION_EXTRA_EPILOGUE is not needed. */
-
-#undef FUNCTION_EPILOGUE
-#define FUNCTION_EPILOGUE(FILE, SIZE) \
-{ register int regno; \
- register int mask, fmask; \
- register int nregs; \
- int offset, foffset; \
- extern char call_used_regs[]; \
- int fsize = ((SIZE) + 3) & -4; \
- int big = 0; \
- nregs = 0; fmask = 0; \
- for (regno = 16; regno < 24; regno++) \
- if (regs_ever_live[regno] && ! call_used_regs[regno]) \
- { nregs++; fmask |= 1 << (23 - regno); } \
- foffset = nregs * 12; \
- nregs = 0; mask = 0; \
- if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \
- for (regno = 0; regno < 16; regno++) \
- if (regs_ever_live[regno] && ! call_used_regs[regno]) \
- { nregs++; mask |= 1 << regno; } \
- offset = foffset + nregs * 4; \
- if (offset + fsize >= 0x8000 \
- && frame_pointer_needed \
- && (mask || fmask)) \
- { fprintf (FILE, "\tmov.l &%d,%%a0\n", -fsize); \
- fsize = 0, big = 1; } \
- if (exact_log2 (mask) >= 0) { \
- if (big) \
- fprintf (FILE, "\tmov.l -%d(%%a6,%%a0.l),%s\n", \
- offset + fsize, reg_names[exact_log2 (mask)]); \
- else if (! frame_pointer_needed) \
- fprintf (FILE, "\tmov.l (%%sp)+,%s\n", \
- reg_names[exact_log2 (mask)]); \
- else \
- fprintf (FILE, "\tmov.l -%d(%%a6),%s\n", \
- offset + fsize, reg_names[exact_log2 (mask)]); } \
- else if (mask) { \
- if (big) \
- fprintf (FILE, "\tmovm.l -%d(%%a6,%%a0.l),&0x%x\n", \
- offset + fsize, mask); \
- else if (! frame_pointer_needed) \
- fprintf (FILE, "\tmovm.l (%%sp)+,&0x%x\n", mask); \
- else \
- fprintf (FILE, "\tmovm.l -%d(%%a6),&0x%x\n", \
- offset + fsize, mask); } \
- if (fmask) { \
- if (big) \
- fprintf (FILE, "\tfmovm -%d(%%a6,%%a0.l),&0x%x\n", \
- foffset + fsize, fmask); \
- else if (! frame_pointer_needed) \
- fprintf (FILE, "\tfmovm (%%sp)+,&0x%x\n", fmask); \
- else \
- fprintf (FILE, "\tfmovm -%d(%%a6),&0x%x\n", \
- foffset + fsize, fmask); } \
- if (current_function_returns_pointer) \
- fprintf (FILE, "\tmov.l %%d0,%%a0\n"); \
- if (frame_pointer_needed) \
- fprintf (FILE, "\tunlk %%a6\n"); \
- if (current_function_pops_args) \
- fprintf (FILE, "\trtd &%d\n", current_function_pops_args); \
- else fprintf (FILE, "\trts\n"); }
+#undef FUNCTION_EXTRA_EPILOGUE
+#define FUNCTION_EXTRA_EPILOGUE(FILE, SIZE) \
+ { extern int current_function_returns_pointer; \
+ if ((current_function_returns_pointer) && \
+ ! find_equiv_reg (0, get_last_insn (), 0, 0, 0, 8, Pmode)) \
+ asm_fprintf (FILE, "\tmovl %Rd0,%Ra0\n"); }
/* This is how to output an insn to push a register on the stack.
It need not be very fast code. */