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authorJim Meyering <meyering@redhat.com>2011-04-20 18:19:03 +0000
committerJim Meyering <meyering@redhat.com>2011-04-20 18:19:03 +0000
commit3c60829e38e9b1dc91f9571fa48ca2b8ca3717e0 (patch)
treee56a024bf4863c42aaa3f941f466a849bb9d3b82 /gcc/tree-ssa-pre.c
parent0c8d183576840343a76e631e2db66e6625a967bc (diff)
remove useless if-before-free tests
Change "if (E) free (E);" to "free (E);" everywhere except in the libgo/, intl/, zlib/ and classpath/ directories. Also transform equivalent variants like "if (E != NULL) free (E);" and allow an extra cast on the argument to free. Otherwise, the tested and freed "E" expressions must be identical, modulo white space. git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@172785 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-pre.c')
-rw-r--r--gcc/tree-ssa-pre.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index ee9ee6fe080..a833a041bbb 100644
--- a/gcc/tree-ssa-pre.c
+++ b/gcc/tree-ssa-pre.c
@@ -580,8 +580,7 @@ phi_trans_add (pre_expr e, pre_expr v, basic_block pred)
slot = htab_find_slot_with_hash (phi_translate_table, new_pair,
new_pair->hashcode, INSERT);
- if (*slot)
- free (*slot);
+ free (*slot);
*slot = (void *) new_pair;
}