gas/

2005-02-15  Jan Beulich  <jbeulich@novell.com>

	* config/tc-ia64.c: Include limits.h (if available).
	(gr_values[0]): Set path to INT_MAX.
	(dot_reg_val): Don't allow changing value of r0. Limit range of
	general registers at r127.
	(specify_resource): Default resource index is -1. Don't set resource
	index (in case IA64_RS_RSE) without setting the specific flag.
	(note_register_values): Check operand is O_constant before tracking
	input value of moves. Add tracking for dep.z with constant inputs.
	(print_dependency): Resource index of specific resource may be zero.
	(check_dependencies): Likewise.

gas/testsuite/
2005-02-15  Jan Beulich  <jbeulich@novell.com>

	* gas/ia64/dv-raw-err.l: Expect specific resource for RAW violation on b0.
	* gas/ia64/regval.[ls]: New.
	* gas/ia64/ia64.exp: Run new test.

1 files changed, 45 insertions, 7 deletions

diff --git a/gas/config/tc-ia64.c b/gas/config/tc-ia64.c
index c7a6b07..4520d0b 100644
--- a/gas/config/tc-ia64.c
+++ b/gas/config/tc-ia64.c
@@ -51,6 +51,10 @@
 
 #include "elf/ia64.h"
 
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+
 #define NELEMS(a)	((int) (sizeof (a)/sizeof ((a)[0])))
 #define MIN(a,b)	((a) < (b) ? (a) : (b))
 
@@ -627,7 +631,17 @@ static struct gr {
   unsigned known:1;
   int path;
   valueT value;
-} gr_values[128] = {{ 1, 0, 0 }};
+} gr_values[128] = {
+  {
+    1,
+#ifdef INT_MAX
+    INT_MAX,
+#else
+    (((1 << (8 * sizeof(gr_values->path) - 2)) - 1) << 1) + 1,
+#endif
+    0
+  }
+};
 
 /* Remember the alignment frag.  */
 static fragS *align_frag;
@@ -4913,7 +4927,7 @@ dot_reg_val (dummy)
     {
       valueT value = get_absolute_expression ();
       int regno = reg.X_add_number;
-      if (regno < REG_GR || regno > REG_GR + 128)
+      if (regno <= REG_GR || regno > REG_GR + 127)
 	as_warn (_("Register value annotation ignored"));
       else
 	{
@@ -8060,7 +8074,7 @@ specify_resource (dep, idesc, type, specs, note, path)
   tmpl.link_to_qp_branch = 1;
   tmpl.mem_offset.hint = 0;
   tmpl.specific = 1;
-  tmpl.index = 0;
+  tmpl.index = -1;
   tmpl.cmp_type = CMP_NONE;
 
 #define UNHANDLED \
@@ -9303,8 +9317,7 @@ dep->name, idesc->name, (rsrc_write?"write":"read"), note)
 	      if (idesc->operands[0] == IA64_OPND_AR3
 		  && CURR_SLOT.opnd[0].X_add_number - REG_AR == AR_BSPSTORE)
 		{
-		  specs[count] = tmpl;
-		  specs[count++].index = 0; /* IA64_RSE_BSPLOAD/RNATBITINDEX */
+		  specs[count++] = tmpl;
 		}
 	    }
 	  else
@@ -9758,6 +9771,7 @@ note_register_values (idesc)
   else if (idesc->operands[0] == IA64_OPND_R1
 	   && (idesc->operands[1] == IA64_OPND_IMM22
 	       || idesc->operands[1] == IA64_OPND_IMMU64)
+	   && CURR_SLOT.opnd[1].X_op == O_constant
 	   && (strcmp (idesc->name, "mov") == 0
 	       || strcmp (idesc->name, "movl") == 0))
     {
@@ -9775,6 +9789,30 @@ note_register_values (idesc)
 	    }
 	}
     }
+  /* Look for dep.z imm insns.  */
+  else if (idesc->operands[0] == IA64_OPND_R1
+	   && idesc->operands[1] == IA64_OPND_IMM8
+	   && strcmp (idesc->name, "dep.z") == 0)
+    {
+      int regno = CURR_SLOT.opnd[0].X_add_number - REG_GR;
+      if (regno > 0 && regno < NELEMS (gr_values))
+	{
+	  valueT value = CURR_SLOT.opnd[1].X_add_number;
+
+	  if (CURR_SLOT.opnd[3].X_add_number < 64)
+	    value &= ((valueT)1 << CURR_SLOT.opnd[3].X_add_number) - 1;
+	  value <<= CURR_SLOT.opnd[2].X_add_number;
+	  gr_values[regno].known = 1;
+	  gr_values[regno].value = value;
+	  gr_values[regno].path = md.path;
+	  if (md.debug_dv)
+	    {
+	      fprintf (stderr, "  Know gr%d = ", regno);
+	      fprintf_vma (stderr, gr_values[regno].value);
+	      fputs ("\n", stderr);
+	    }
+	}
+    }
   else
     {
       clear_qp_mutex (qp_changemask);
@@ -9995,7 +10033,7 @@ print_dependency (action, depind)
       fprintf (stderr, "  %s %s '%s'",
 	       action, dv_mode[(regdeps[depind].dependency)->mode],
 	       (regdeps[depind].dependency)->name);
-      if (regdeps[depind].specific && regdeps[depind].index != 0)
+      if (regdeps[depind].specific && regdeps[depind].index >= 0)
 	fprintf (stderr, " (%d)", regdeps[depind].index);
       if (regdeps[depind].mem_offset.hint)
 	{
@@ -10193,7 +10231,7 @@ check_dependencies (idesc)
 	      if (path != 0)
 		sprintf (pathmsg, " when entry is at label '%s'",
 			 md.entry_labels[path - 1]);
-	      if (rs->specific && rs->index != 0)
+	      if (matchtype == 1 && rs->index >= 0)
 		sprintf (indexmsg, ", specific resource number is %d",
 			 rs->index);
 	      sprintf (msg, "Use of '%s' %s %s dependency '%s' (%s)%s%s",