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Richard Guenther 14c41b9bb9 re PR tree-optimization/19831 (Missing DSE/malloc/free optimization) 
2009-07-01  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/19831
	* tree-ssa-dce.c (propagate_necessity): Calls to functions
	that only act as barriers do not make any previous stores
	necessary.
	* tree-ssa-structalias.c (handle_lhs_call): Delay making
	HEAP variables global, do not add a constraint from nonlocal.
	(find_func_aliases): Handle escapes through return statements.
	(compute_points_to_sets): Make escaped HEAP variables global.

	* gcc.dg/tree-ssa/20041122-1.c: Enable TBAA, scan FRE dump,
	make allocated memory escape.  Un-XFAIL.
	* gcc.dg/vect/pr21591.c: Make allocated memory escape.
	* gcc.dg/vect/pr31699.c: Likewise.
	* gcc.dg/tree-ssa/ssa-dce-7.c: New testcase.

	libmudflap/
	* testsuite/libmudflap.c/fail11-frag.c: Make allocated memory
	escape.
	* testsuite/libmudflap.c/fail12-frag.c: Likewise.
	* testsuite/libmudflap.c/fail16-frag.c: Likewise.
	* testsuite/libmudflap.c/fail31-frag.c: Likewise.

From-SVN: r149140
2009-07-01 12:27:33 +00:00
..
testsuite re PR tree-optimization/19831 (Missing DSE/malloc/free optimization) 2009-07-01 12:27:33 +00:00
acinclude.m4
aclocal.m4 re PR other/35457 (Error building GCC trunk on CELL SPU) 2008-04-18 10:28:53 +00:00
ChangeLog re PR tree-optimization/19831 (Missing DSE/malloc/free optimization) 2009-07-01 12:27:33 +00:00
config.h.in mf-impl.h (__mf_get_state, [...]): Don't use __thread when TLS support is emulated. 2009-01-23 04:58:03 +00:00
configure backport: Support GNU/kOpenSolaris. 2009-03-01 17:49:31 +00:00
configure.ac mf-impl.h (__mf_get_state, [...]): Don't use __thread when TLS support is emulated. 2009-01-23 04:58:03 +00:00
libtool-version
Makefile.am
Makefile.in configure: Regenerate for new libtool. 2008-09-26 16:37:32 +00:00
mf-heuristics.c Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
mf-hooks1.c Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
mf-hooks2.c Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
mf-hooks3.c Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
mf-impl.h Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
mf-runtime.c Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
mf-runtime.h Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00