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authorJohn Carr <jfc@mit.edu>1997-12-24 14:39:44 -0700
committerJeff Law <law@gcc.gnu.org>1997-12-24 14:39:44 -0700
commit6e73e66606ebe0f3a1827b4401d259fac87fb36e (patch)
tree16ba7b39b3187d844bce4bf136901fa626027edb /gcc/flags.h
parent280e521f029df248a105d1bd90c251ef26080f09 (diff)
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flags.h, [...]: Remove flag_alias_check; optimization is now always enabled.
* flags.h, toplev.c, calls.c, alias.c: Remove flag_alias_check; optimization is now always enabled. * calls.c (expand_call): Recognize C++ operator new as malloc-like function. * alias.c (memrefs_conflict_p): Eliminate tests now done by base_alias_check. (*_dependence): Call canon_rtx before base_alias_check. (init_alias_once): New function to precompute set of registers which can hold Pmode function arguments. * rtl.h: Declare init_alias_once. * toplev.c (compile_file): Call init_alias_once. From-SVN: r17226
Diffstat (limited to 'gcc/flags.h')
-rw-r--r--gcc/flags.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/gcc/flags.h b/gcc/flags.h
index 43c88c9..05feed2 100644
--- a/gcc/flags.h
+++ b/gcc/flags.h
@@ -420,10 +420,6 @@ extern int flag_gnu_linker;
/* Tag all structures with __attribute__(packed) */
extern int flag_pack_struct;
-/* 1 if alias checking is enabled: symbols do not alias each other
- and parameters do not alias the current stack frame. */
-extern int flag_alias_check;
-
/* This flag is only tested if alias checking is enabled.
0 if pointer arguments may alias each other. True in C.
1 if pointer arguments may not alias each other but may alias