1 files changed, 0 insertions, 46 deletions
diff --git a/toolchain/gcc/3.4.1/400-mips-delay-slot.patch b/toolchain/gcc/3.4.1/400-mips-delay-slot.patch
deleted file mode 100644
index 8111dba185..0000000000
--- a/toolchain/gcc/3.4.1/400-mips-delay-slot.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-http://www.linux-mips.org/archives/linux-mips/2004-09/msg00000.html
-
-Atsushi Nemoto <anemo@mba.ocn.ne.jp> writes:
->/ Is this a get_user's problem or gcc's?/
-
-The latter.  gcc is putting the empty asm:
-
-        __asm__ ("":"=r" (__gu_val));
-
-into the delay slot of the call.
-
-Part of the problem is that gcc estimates the length of an asm to be the
-number of instruction separators + 1.  This means that it estimates the
-asm above to be one instruction long, which is perhaps a little silly
-for an empty string.
-
-But the real problem is that gcc should never trust this estimate anyway,
-since each "instruction" could obviously be a multi-instruction macro.
-gcc should certainly never put asms into delay slots.
-
-FWIW, I don't think the bug is specific to 3.3 or 3.4.  It could
-probably trigger for other gcc versions too.  It is highly dependent
-on scheduling though.
-
-The attached 3.4.x patch fixes the problem there, but if you want to work
-around it for old versions, just avoid using empty asms if you can,
-or make them volatile if you can't.
-
-Of course, the problem isn't confined to empty asms.  If you have an asm
-with a single, multi-instruction macro, gcc might try putting that in a
-delay slot too.  You should at least get an assembler warning in that case.
-
-Richard
-
-
---- gcc-3.4.1/gcc/config/mips/mips.md-orig	2004-09-02 10:38:36.000000000 -0500
-+++ gcc-3.4.1/gcc/config/mips/mips.md	2004-09-02 10:38:42.000000000 -0500
-@@ -251,7 +251,7 @@
- 
- ;; Can the instruction be put into a delay slot?
- (define_attr "can_delay" "no,yes"
--  (if_then_else (and (eq_attr "type" "!branch,call,jump")
-+  (if_then_else (and (eq_attr "type" "!branch,call,jump,multi")
- 		     (and (eq_attr "hazard" "none")
- 			  (eq_attr "single_insn" "yes")))
- 		(const_string "yes")