Commit Graph

3 Commits

Author SHA1 Message Date
Tom de Vries 2a6dcb7e73 re PR middle-end/43513 (The stack pointer is adjusted twice)
2011-07-31  Tom de Vries  <tom@codesourcery.com>

	PR middle-end/43513
	* testsuite/libmudflap.c/fail31-frag.c: Adapt testcase to prevent
	folding of alloca.

From-SVN: r176968
2011-07-31 10:02:12 +00:00
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
Diego Novillo 6de9cd9a88 Merge tree-ssa-20020619-branch into mainline.
From-SVN: r81764
2004-05-13 02:41:07 -04:00