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[patch] MIPS: Missing documentation bits for -mfix-r4x00


 A few documentation bits have been lost during works on the R4000 and
R4400 errata workarounds.  Here's a patch to add the bits.  It includes an
indentation fix for the related code as well.

2004-03-25  Maciej W. Rozycki  <>

	* config/mips/mips.h (TARGET_FIX_R4400): Fix indentation.

	* doc/invoke.texi: Complete documentation for -mfix-r4000 and 

 Please apply.


+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+        e-mail:, PGP key available        +

diff -up --recursive --new-file gcc-3.5.0-20040322.macro/gcc/config/mips/mips.h gcc-3.5.0-20040322/gcc/config/mips/mips.h
--- gcc-3.5.0-20040322.macro/gcc/config/mips/mips.h	2004-03-12 02:27:27.000000000 +0000
+++ gcc-3.5.0-20040322/gcc/config/mips/mips.h	2004-03-24 13:14:03.000000000 +0000
@@ -254,7 +254,7 @@ extern const struct mips_cpu_info *mips_
 #define TARGET_FIX_R4000	(target_flags & MASK_FIX_R4000)
 					/* Work around R4400 errata.  */
-#define TARGET_FIX_R4400		(target_flags & MASK_FIX_R4400)
+#define TARGET_FIX_R4400	(target_flags & MASK_FIX_R4400)
 /* True if we should use NewABI-style relocation operators for
    symbolic addresses.  This is never true for mips16 code,
diff -up --recursive --new-file gcc-3.5.0-20040322.macro/gcc/doc/invoke.texi gcc-3.5.0-20040322/gcc/doc/invoke.texi
--- gcc-3.5.0-20040322.macro/gcc/doc/invoke.texi	2004-03-18 02:28:08.000000000 +0000
+++ gcc-3.5.0-20040322/gcc/doc/invoke.texi	2004-03-25 15:34:34.000000000 +0000
@@ -478,8 +478,8 @@ in the following sections.
 -mcheck-zero-division  -mno-check-zero-division @gol
 -mmemcpy  -mno-memcpy  -mlong-calls  -mno-long-calls @gol
 -mmad  -mno-mad  -mfused-madd  -mno-fused-madd  -nocpp @gol
--mfix-r4000  -mno-fix-r4000  -mfix-sb1  -mno-fix-sb1 @gol
--mflush-func=@var{func}  -mno-flush-func @gol
+-mfix-r4000  -mno-fix-r4000  -mfix-r4400  -mno-fix-r4400 @gol
+-mfix-sb1  -mno-fix-sb1  -mflush-func=@var{func}  -mno-flush-func @gol
 -mbranch-likely  -mno-branch-likely}
 @emph{i386 and x86-64 Options}
@@ -8067,6 +8067,20 @@ immediately after starting an integer di
 A double-word or a variable shift may give an incorrect result if executed
 while an integer multiplication is in progress.
+An integer division may give an incorrect result if started in a delay slot
+of a taken branch or a jump.
+@end itemize
+@item -mfix-r4400
+@itemx -mno-fix-r4400
+@opindex mfix-r4400
+@opindex mno-fix-r4400
+Work around certain R4400 CPU errata:
+@itemize @minus
+A double-word or a variable shift may give an incorrect result if executed
+immediately after starting an integer division.
 @end itemize
 @item -mfix-sb1

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