r158357 - in /trunk/gcc: ChangeLog basic-block....

[bernds@gcc.gnu.org]

Author: bernds
Date: Wed Apr 14 20:42:02 2010
New Revision: 158357

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158357
Log:
gcc/
	PR target/21803
	* ifcvt.c (cond_exec_process_if_block): Look for identical sequences
	at the start and end of the then/else blocks, and omit them from the
	conversion.
	* cfgcleanup.c (flow_find_cross_jump): No longer static.  Remove MODE
	argument; all callers changed.  Pass zero to old_insns_match_p instead.
	(flow_find_head_matching_sequence): New function.
	(old_insns_match_p): Check REG_EH_REGION notes for calls.
	* basic-block.h (flow_find_cross_jump,
	flow_find_head_matching_sequence): Declare functions.

gcc/testsuite/
	PR target/21803
	* gcc.target/arm/pr42496.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/arm/pr42496.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/basic-block.h
    trunk/gcc/cfgcleanup.c
    trunk/gcc/ifcvt.c
    trunk/gcc/testsuite/ChangeLog