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r205616 - in /trunk/gcc: ChangeLog config/i386/...


Author: tmsriram
Date: Tue Dec  3 03:14:09 2013
New Revision: 205616

URL: http://gcc.gnu.org/viewcvs?rev=205616&root=gcc&view=rev
Log:
This patch fixes PR 58944
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58944

ix86_valid_target_attribute_tree in config/i386/i386.c was
refactored to not depend on global_options structure and to be able to
use any gcc_options structure.  One clean way to fix this is by having
target_option_default_node save all the default target options which
can be restored to any gcc_options structure. The root cause of the
above bugs was that ix86_arch_string and ix86_tune_string was not
saved in target_option_deault_node.

This patch saves all the  target options used in i386.opt which are
either obtained from the command-line or set to some default.

Testing:
Patch tested for bootstrap on all default languages(also obj-c++ and ada)
on x86_64 and regression testsuite checked for parity with RUNTESTFLAGS -m32
and m64.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr58944.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.opt
    trunk/gcc/testsuite/ChangeLog


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