[autovect] [patch] Make store motion use alias oracle
Mon Mar 12 15:25:00 GMT 2007
I would like to ask to insert Zdenek Dvorak's make
store motion use alias oracle patch into autovect branch.
http://gcc.gnu.org/ml/gcc-patches/2007-01/msg02605.html (with the fix :
This patch should simplify stmts in loops and thus open opportunities
This patch inserts additional constrain to the movement_possibility
function which causes the ifcvt to not be applied when it contains memory
references (and as a result to some testcases faulires). This problem
is fixed in the attached patch which was bootstrap and tested on ppc
together with the above lim patch. (I intend to re-submit this fix once
the above patch will be inserted to the branch)
(See attached file: patch_fix_ifcvt.txt)
OK for autovect?
2007-03-12 Revital Eres <firstname.lastname@example.org>
* tree-if-conv.c (if_convertible_gimple_modify_stmt_p):
Call movement_possibility function with additional argument.
* tree-flow.h (movement_possibility): Change definition.
* tree-ssa-loop-im.c (movement_possibility): Add new argument
to indicates whether this function serves as validity check
for transformations which do not intend to move STMT.
(determine_invariantness_stmt): Call function
movement_possibility with additional argument.
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