From: Jim Wilson <wilson@tuliptree.org>
Date: Sat, 2 Apr 2005 00:43:48 +0000 (+0000)
Subject: Patch from David Mosberger, to avoid nop.f on Itanium2.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f6fe78d68c664e09c0d43de2fd17a6f49eee93f9;p=binutils-gdb.git

Patch from David Mosberger, to avoid nop.f on Itanium2.
* config/tc-ia64.c (ia64_handle_align): Move le_nop and
le_nop_stop arrays and initializers to file scope.
(md_begin): When generating code for anything other than
Itanium 1, use MMI instead of MFI NOP bundles as a filler.
---

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 2e3cd7d371d..00c35526d02 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,10 @@
+2005-04-01 David Mosberger  <davidm@hpl.hp.com>
+
+	* config/tc-ia64.c (ia64_handle_align): Move le_nop and
+	le_nop_stop arrays and initializers to file scope.
+	(md_begin): When generating code for anything other than
+	Itanium 1, use MMI instead of MFI NOP bundles as a filler.
+
 2005-04-01  Jan Beulich  <jbeulich@novell.com>
 
 	* config/tc-i386.c (output_imm): Also set sign flag for 64-bit push
diff --git a/gas/config/tc-ia64.c b/gas/config/tc-ia64.c
index d96d6f613e7..f458550e2dd 100644
--- a/gas/config/tc-ia64.c
+++ b/gas/config/tc-ia64.c
@@ -328,6 +328,21 @@ static struct
   }
 md;
 
+/* These are not const, because they are modified to MMI for non-itanium1
+   targets below.  */
+/* MFI bundle of nops.  */
+static unsigned char le_nop[16] =
+{
+  0x0c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+  0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00
+};
+/* MFI bundle of nops with stop-bit.  */
+static unsigned char le_nop_stop[16] =
+{
+  0x0d, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+  0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00
+};
+
 /* application registers:  */
 
 #define AR_K0		0
@@ -7259,6 +7274,13 @@ md_begin ()
     symbol_new (".<iplt>", undefined_section, FUNC_IPLT_RELOC,
 		&zero_address_frag);
 
+ if (md.tune != itanium1)
+   {
+     /* Convert MFI NOPs bundles into MMI NOPs bundles.  */
+     le_nop[0] = 0x8;
+     le_nop_stop[0] = 0x9;
+   }
+
   /* Compute the table of best templates.  We compute goodness as a
      base 4 value, in which each match counts for 3.  Match-failures
      result in NOPs and we use extra_goodness() to pick the execution
@@ -11516,14 +11538,6 @@ void
 ia64_handle_align (fragp)
      fragS *fragp;
 {
-  /* Use mfi bundle of nops with no stop bits.  */
-  static const unsigned char le_nop[]
-    = { 0x0c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
-	0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00};
-  static const unsigned char le_nop_stop[]
-    = { 0x0d, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
-	0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00};
-
   int bytes;
   char *p;
   const unsigned char *nop;