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[Bug rtl-optimization/56178] [4.8 Regression] Miscompilation of Ada front-end with profiled bootstrap


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56178

--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2013-02-07 08:07:19 UTC ---
Author: ebotcazou
Date: Thu Feb  7 08:07:04 2013
New Revision: 195841

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195841
Log:
    PR rtl-optimization/56178
    * cse.c (cse_insn): Do not create a REG_EQUAL note if the source is a
    SUBREG of a register.  Tidy up related block of code.
    * fwprop.c (forward_propagate_and_simplify): Do not create a REG_EQUAL
    note if the source is a register or a SUBREG of a register.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cse.c
    trunk/gcc/fwprop.c


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