diff options
| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-01-12 09:44:16 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-01-12 09:44:16 +0000 |
| commit | f391504caa41e1dba013c6fc2f6b73d3d91d424b (patch) | |
| tree | d1744bed287bf158f3ba33cbaf31e8ac5720aefb /gcc/cselib.c | |
| parent | 115addd6f75b9a540c34a162f151b190e8dd7165 (diff) | |
| download | gcc-f391504caa41e1dba013c6fc2f6b73d3d91d424b.tar.gz | |
Partial fox for PR opt/10776 II
* cselib.c: Include params.h
(cselib_invalidate_mem): Limit amount of nonconflicting memory
locations.
* params.def (PARAM_MAX_CSELIB_MEMORY_LOCATIONS): New.
* Makefile.in (cselib.o): Depend on params.h
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@75710 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cselib.c')
| -rw-r--r-- | gcc/cselib.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/cselib.c b/gcc/cselib.c index 8cb325d61a5..99c4bec1c41 100644 --- a/gcc/cselib.c +++ b/gcc/cselib.c @@ -39,6 +39,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "ggc.h" #include "hashtab.h" #include "cselib.h" +#include "params.h" static int entry_and_rtx_equal_p (const void *, const void *); static hashval_t get_value_hash (const void *); @@ -1114,6 +1115,7 @@ static void cselib_invalidate_mem (rtx mem_rtx) { cselib_val **vp, *v, *next; + int num_mems = 0; vp = &first_containing_mem; for (v = *vp; v != &dummy_val; v = next) @@ -1135,9 +1137,11 @@ cselib_invalidate_mem (rtx mem_rtx) p = &(*p)->next; continue; } - if (! cselib_mem_conflict_p (mem_rtx, x)) + if (num_mems < PARAM_VALUE (PARAM_MAX_CSELIB_MEMORY_LOCATIONS) + && ! cselib_mem_conflict_p (mem_rtx, x)) { has_mem = true; + num_mems++; p = &(*p)->next; continue; } |