r116223 - in /branches/gcc-4_1-branch/gcc: Chan...

[spop@gcc.gnu.org]

Author: spop
Date: Thu Aug 17 13:14:26 2006
New Revision: 116223

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116223
Log:
	PR middle-end/25211
	PR middle-end/20256
	PR middle-end/26435
	* tree-loop-linear.c (linear_transform_loops): Don't test perfect_nest_p.
	Call rewrite_into_loop_closed_ssa only when something changed.
	* lambda.h (gcc_loopnest_to_lambda_loopnest): Update declaration.
	* lambda-code.c (can_convert_to_perfect_nest): Declared.
	(gcc_loopnest_to_lambda_loopnest): Removed need_perfect_nest parameter.
	Test for perfect_nest_p here.  Fix formating.
	(replace_uses_equiv_to_x_with_y): Fix formating.
	(stmt_uses_op): Removed.
	(can_convert_to_perfect_nest): Removed loopivs parameter.
	Complete the test by checking the scalar dependences.
	(perfect_nestify): Remove the test for can_convert_to_perfect_nest.
	Fix formating.  Don't copy statements in the inner loop: move them to
	the inner loop header.


Added:
    branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/tree-ssa/pr20256.c
    branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/tree-ssa/pr26435.c
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/pr27745.f90
Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/lambda-code.c
    branches/gcc-4_1-branch/gcc/lambda.h
    branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/tree-ssa/ltrans-1.c
    branches/gcc-4_1-branch/gcc/tree-loop-linear.c