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| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-03-18 16:42:34 +0000 |
|---|---|---|
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-03-18 16:42:34 +0000 |
| commit | 2d49f8240d0215badf73b1984dade82a824c2ea0 (patch) | |
| tree | 245f4992ca85428a919452579f49376b65e76f95 /gcc/loop-iv.c | |
| parent | 20ebc48fe6ad018a6aa7f9958b7c46cf7b54e6ab (diff) | |
| download | ppe42-gcc-2d49f8240d0215badf73b1984dade82a824c2ea0.tar.gz ppe42-gcc-2d49f8240d0215badf73b1984dade82a824c2ea0.zip | |
* doloop.c: Removed.
* loop-doloop.c: New file.
* Makefile.in (doloop.o): Remove.
(loop-doloop.o): New.
* cfgloop.h (get_loop_level, doloop_optimize_loops): Declare.
* cfgloopanal.c (get_loop_level): New function.
* loop-iv.c (iv_number_of_iterations): Handle case when loop
is leaved immediatelly.
* loop.c (strength_reduce): Do not call doloop optimization.
* loop.h (LOOP_BCT): Removed.
* passes.c (rest_of_handle_loop_optimize): Do not use LOOP_BCT.
(rest_of_handle_loop2): Call doloop_optimize_loops.
(rest_of_compilation): Test for optimizations moved to
rest_of_handle_loop2.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@79625 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/loop-iv.c')
| -rw-r--r-- | gcc/loop-iv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/loop-iv.c b/gcc/loop-iv.c index 97cfdf7c07e..face41d3f32 100644 --- a/gcc/loop-iv.c +++ b/gcc/loop-iv.c @@ -2281,6 +2281,10 @@ iv_number_of_iterations (struct loop *loop, rtx insn, rtx condition, simplify_using_initial_values (loop, IOR, &desc->infinite); simplify_using_initial_values (loop, NIL, &desc->niter_expr); + if (desc->noloop_assumptions + && XEXP (desc->noloop_assumptions, 0) == const_true_rtx) + goto zero_iter; + if (GET_CODE (desc->niter_expr) == CONST_INT) { unsigned HOST_WIDEST_INT val = INTVAL (desc->niter_expr); |
