i386.md (stack_protect_set): Disable the pattern for Android since Android libc…

i386.md (stack_protect_set): Disable the pattern for Android since Android libc (bionic) does not provide...

2012-07-16 Sergey Melnikov <sergey.melnikov@intel.com>

        * config/i386/i386.md (stack_protect_set): Disable the pattern
        for Android since Android libc (bionic) does not provide random
        value for stack protection guard at gs:0x14. Guard value
        will be provided from external symbol (default implementation).
        (stack_protect_set_<mode>): Likewise.
        (stack_protect_test): Likewise.
        (stack_protect_test_<mode>): Likewise.

From-SVN: r189513

gcc/ChangeLog

+2012-07-16 Sergey Melnikov <sergey.melnikov@intel.com>
+
+	* config/i386/i386.md (stack_protect_set): Disable the pattern
+	for Android since Android libc (bionic) does not provide random
+	value for stack protection guard at gs:0x14. Guard value
+	will be provided from external symbol (default implementation).
+	(stack_protect_set_<mode>): Likewise.
+	(stack_protect_test): Likewise.
+	(stack_protect_test_<mode>): Likewise.
+
 2012-07-16  Hans-Peter Nilsson  <hp@axis.com>
 
 	* config/cris/cris-protos.h (cris_legitimate_address_p): Declare.

gcc/config/i386/i386.md

@@ -17708,7 +17708,7 @@
 (define_expand "stack_protect_set"
   [(match_operand 0 "memory_operand")
    (match_operand 1 "memory_operand")]
-  ""
+  "!OPTION_BIONIC"
 {
   rtx (*insn)(rtx, rtx);
 
@@ -17733,7 +17733,7 @@
 		    UNSPEC_SP_SET))
    (set (match_scratch:PTR 2 "=&r") (const_int 0))
    (clobber (reg:CC FLAGS_REG))]
-  ""
+  "!OPTION_BIONIC"
   "mov{<imodesuffix>}\t{%1, %2|%2, %1}\;mov{<imodesuffix>}\t{%2, %0|%0, %2}\;xor{l}\t%k2, %k2"
   [(set_attr "type" "multi")])
 
@@ -17751,7 +17751,7 @@
   [(match_operand 0 "memory_operand")
    (match_operand 1 "memory_operand")
    (match_operand 2)]
-  ""
+  "!OPTION_BIONIC"
 {
   rtx flags = gen_rtx_REG (CCZmode, FLAGS_REG);
 
@@ -17781,7 +17781,7 @@
 		     (match_operand:PTR 2 "memory_operand" "m")]
 		    UNSPEC_SP_TEST))
    (clobber (match_scratch:PTR 3 "=&r"))]
-  ""
+  "!OPTION_BIONIC"
   "mov{<imodesuffix>}\t{%1, %3|%3, %1}\;xor{<imodesuffix>}\t{%2, %3|%3, %2}"
   [(set_attr "type" "multi")])