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path: root/packages/gcc/gcc-4.2.3/arm-crunch-neg2.patch
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--- gcc-4.1.2/gcc/config/arm/cirrus.md-original	2007-06-12 17:01:24.000000000 +1000
+++ gcc-4.1.2/gcc/config/arm/cirrus.md	2007-06-12 17:03:26.000000000 +1000
@@ -255,18 +256,20 @@
   [(set_attr "cirrus" "normal")]
 )
 
+;; appears to be buggy: neg 0 != -0
 (define_insn "*cirrus_negsf2"
   [(set (match_operand:SF         0 "cirrus_fp_register" "=v")
 	(neg:SF (match_operand:SF 1 "cirrus_fp_register"  "v")))]
-  "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
+  "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfnegs%?\\t%V0, %V1"
   [(set_attr "cirrus" "normal")]
 )
 
+;; appears to be buggy: neg 0 != -0
 (define_insn "*cirrus_negdf2"
   [(set (match_operand:DF         0 "cirrus_fp_register" "=v")
 	(neg:DF (match_operand:DF 1 "cirrus_fp_register"  "v")))]
-  "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
+  "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfnegd%?\\t%V0, %V1"
   [(set_attr "cirrus" "normal")]
 )