r189173 - in /trunk/gcc: ChangeLog stmt.c tests...

[steven@gcc.gnu.org]

Author: steven
Date: Mon Jul  2 18:50:51 2012
New Revision: 189173

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189173
Log:
gcc/
	* stmt.c (emit_case_bit_tests): Remove.
	(expand_case): Remove expand_switch_using_bit_tests_p code.
	* tree-switch-conversion.c (hoist_edge_and_branch_if_true): New.
	(MAX_CASE_BIT_TESTS): Moved from stmt.c to here.
	(lshift_cheap_p): Likewise.
	(expand_switch_using_bit_tests_p): Likewise.
	(struct case_bit_test): Likewise.
	(case_bit_test_cmp): Likewise.
	(emit_case_bit_tests): New implementation for GIMPLE.
	(gen_inbound_check): Do not release post-dominator info here.
	(process_switch): Reorder code.  Expand as bit tests if it
	looks like a win.
	(do_switchconv): Release post-dominator info here if something
	changed.
	(struct gimple_opt_pass): Verify more.
	* tree.h (expand_switch_using_bit_tests_p): Remove prototype.

testsuite/
	* gcc.dg/tree-ssa/pr36881.c: Fix test case to not expand as bit tests.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/stmt.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr36881.c
    trunk/gcc/tree-switch-conversion.c
    trunk/gcc/tree.h