* Makefile.in (final.o): Depend on target.h.

	* final.c: Include target.h.
	(default_function_pro_epilogue): New.
	(final_start_function): Use target structure for function prologues.
	(final_end_function): Use target structure for function epilogues.
	* fold-const.c (real_hex_to_f): Constify s and p.
	* output.h (default_function_pro_epilogue): New.
	* real.h (real_hex_to_f): Update prototype.
	* target-def.h (TARGET_ASM_FUNCTION_PROLOGUE,
	TARGET_ASM_FUNCTION_EPILOGUE, TARGET_ASM_OUT): New.
	(TARGET_INITIALIZER): Update.
	* target.h (gcc_target): Add struct asm_out.
	* doc/tm.texi: Update.

config:
	Update each arch to use TARGET_ASM_FUNCTION_PROLOGUE and
	TARGET_ASM_FUNCTION_EPILOGUE.  Move macro code to functions
	in cpu/cpu.c, or rename old functions consistently.  Take
	a HOST_WIDE INT not an int as the SIZE parameter.  Remove now
	redundant macros and prototypes.  Make new functions static.

	* 1750a/1750a.c: Similarly.
	* 1750a/1750a.h: Similarly.
	* a29k/a29k-protos.h: Similarly.
	* a29k/a29k.c: Similarly.
	* a29k/a29k.h: Similarly.
	* arc/arc-protos.h: Similarly.
	* arc/arc.c: Similarly.
	* arc/arc.h: Similarly.
	* arm/arm-protos.h: Similarly.
	* arm/arm.c: Similarly.
	* arm/arm.h: Similarly.
	* avr/avr-protos.h: Similarly.
	* avr/avr.c: Similarly.
	* avr/avr.h: Similarly.
	* clipper/clipper-protos.h: Similarly.
	* clipper/clipper.c: Similarly.
	* clipper/clipper.h: Similarly.
	* convex/convex.c: Similarly.
	* convex/convex.h: Similarly.
	* d30v/d30v-protos.h: Similarly.
	* d30v/d30v.c: Similarly.
	* d30v/d30v.h: Similarly.
	* d30v/d30v.md: Similarly.
	* dsp16xx/dsp16xx-protos.h: Similarly.
	* dsp16xx/dsp16xx.c: Similarly.
	* dsp16xx/dsp16xx.h: Similarly.
	* elxsi/elxsi.c: Similarly.
	* elxsi/elxsi.h: Similarly.
	* fr30/fr30.c: Similarly.
	* fr30/fr30.md: Similarly.
	* h8300/h8300-protos.h: Similarly.
	* h8300/h8300.c: Similarly.
	* h8300/h8300.h: Similarly.
	* i370/i370-protos.h: Similarly.
	* i370/i370.c: Similarly.
	* i370/i370.h: Similarly.
	* i386/i386.c: Similarly.
	* i386/osf1elf.h: Similarly.
	* i386/osfrose.h: Similarly.
	* i860/i860-protos.h: Similarly.
	* i860/i860.c: Similarly.
	* i860/i860.h: Similarly.
	* i960/i960-protos.h: Similarly.
	* i960/i960.c: Similarly.
	* i960/i960.h: Similarly.
	* ia64/ia64-protos.h: Similarly.
	* ia64/ia64.c: Similarly.
	* ia64/ia64.h: Similarly.
	* m32r/m32r-protos.h: Similarly.
	* m32r/m32r.c: Similarly.
	* m32r/m32r.h: Similarly.
	* m68hc11/m68hc11-protos.h: Similarly.
	* m68hc11/m68hc11.c: Similarly.
	* m68hc11/m68hc11.h: Similarly.
	* m68k/crds.h: Similarly.
	* m68k/dpx2.h: Similarly.
	* m68k/m68k-protos.h: Similarly.
	* m68k/m68k.c: Similarly.
	* m68k/m68k.h: Similarly.
	* m68k/news.h: Similarly.
	* m88k/m88k-protos.h: Similarly.
	* m88k/m88k.c: Similarly.
	* m88k/m88k.h: Similarly.
	* mips/mips-protos.h: Similarly.
	* mips/mips.c: Similarly.
	* mips/mips.h: Similarly.
	* ns32k/merlin.h: Similarly.
	* ns32k/ns32k.c: Similarly.
	* ns32k/ns32k.h: Similarly.
	* ns32k/tek6000.h: Similarly.
	* pa/pa-protos.h: Similarly.
	* pa/pa.c: Similarly.
	* pa/pa.h: Similarly.
	* pdp11/2bsd.h: Similarly.
	* pdp11/pdp11-protos.h: Similarly.
	* pdp11/pdp11.c: Similarly.
	* pdp11/pdp11.h: Similarly.
	* romp/romp-protos.h: Similarly.
	* romp/romp.c: Similarly.
	* romp/romp.h: Similarly.
	* rs6000/rs6000-protos.h: Similarly.
	* rs6000/rs6000.c: Similarly.
	* rs6000/rs6000.h: Similarly.
	* rs6000/sysv4.h: Similarly.
	* sh/sh-protos.h: Similarly.
	* sh/sh.c: Similarly.
	* sh/sh.h: Similarly.
	* sparc/sparc-protos.h: Similarly.
	* sparc/sparc.c: Similarly.
	* sparc/sparc.h: Similarly.
	* vax/vax.c: Similarly.
	* vax/vax.h: Similarly.
	* vax/vms.h: Similarly.
	* we32k/we32k.c: Similarly.
	* we32k/we32k.h: Similarly.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@43817 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 74 insertions, 3 deletions

diff --git a/gcc/config/vax/vax.c b/gcc/config/vax/vax.c
index 43d6a9cc7bd..50d9f708b2a 100644
--- a/gcc/config/vax/vax.c
+++ b/gcc/config/vax/vax.c
@@ -30,17 +30,88 @@ Boston, MA 02111-1307, USA.  */
 #include "function.h"
 #include "output.h"
 #include "insn-attr.h"
-#ifdef VMS_TARGET
 #include "tree.h"
-#endif
+#include "recog.h"
 #include "tm_p.h"
 #include "target.h"
 #include "target-def.h"
+
+static void vax_output_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));
 
 /* Initialize the GCC target structure.  */
+#undef TARGET_ASM_FUNCTION_PROLOGUE
+#define TARGET_ASM_FUNCTION_PROLOGUE vax_output_function_prologue
 
 struct gcc_target target = TARGET_INITIALIZER;
 
+/* Generate the assembly code for function entry.  FILE is a stdio
+   stream to output the code to.  SIZE is an int: how many units of
+   temporary storage to allocate.
+
+   Refer to the array `regs_ever_live' to determine which registers to
+   save; `regs_ever_live[I]' is nonzero if register number I is ever
+   used in the function.  This function is responsible for knowing
+   which registers should not be saved even if used.  */
+
+static void
+vax_output_function_prologue (file, size)
+     FILE * file;
+     HOST_WIDE_INT size;
+{
+  register int regno;
+  register int mask = 0;
+  extern char call_used_regs[];
+
+  for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
+    if (regs_ever_live[regno] && !call_used_regs[regno])
+      mask |= 1 << regno;
+
+  fprintf (file, "\t.word 0x%x\n", mask);
+
+  if (VMS_TARGET)
+    {
+      /*
+       * This works for both gcc and g++.  It first checks to see if
+       * the current routine is "main", which will only happen for
+       * GCC, and add the jsb if it is.  If is not the case then try
+       * and see if __MAIN_NAME is part of current_function_name,
+       * which will only happen if we are running g++, and add the jsb
+       * if it is.  In gcc there should never be a paren in the
+       * function name, and in g++ there is always a "(" in the
+       * function name, thus there should never be any confusion.
+       *
+       * Adjusting the stack pointer by 4 before calling C$MAIN_ARGS
+       * is required when linking with the VMS POSIX version of the C
+       * run-time library; using `subl2 $4,r0' is adequate but we use
+       * `clrl -(sp)' instead.  The extra 4 bytes could be removed
+       * after the call because STARTING_FRAME_OFFSET's setting of -4
+       * will end up adding them right back again, but don't bother.
+       */
+
+      const char *p = current_function_name;
+      int is_main = strcmp ("main", p) == 0;
+#     define __MAIN_NAME " main("
+
+      while (!is_main && *p != '\0')
+	{
+	  if (*p == *__MAIN_NAME
+	      && strncmp (p, __MAIN_NAME, sizeof __MAIN_NAME - sizeof "") == 0)
+	    is_main = 1;
+	  else
+	    p++;
+	}
+
+      if (is_main)
+	fprintf (file, "\t%s\n\t%s\n", "clrl -(sp)", "jsb _C$MAIN_ARGS");
+    }
+
+    size -= STARTING_FRAME_OFFSET;
+    if (size >= 64)
+      fprintf (file, "\tmovab %d(sp),sp\n", -size);
+    else if (size)
+      fprintf (file, "\tsubl2 $%d,sp\n", size);
+}
+
 /* This is like nonimmediate_operand with a restriction on the type of MEM.  */
 
 void
@@ -665,7 +736,7 @@ check_float_value (mode, d, overflow)
   return 0;
 }
 
-#ifdef VMS_TARGET
+#if VMS_TARGET
 /* Additional support code for VMS target. */
 
 /* Linked list of all externals that are to be emitted when optimizing