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authorDavid Mitchell <davem@iabyn.com>2015-08-11 16:21:07 +0100
committerDavid Mitchell <davem@iabyn.com>2015-08-17 11:16:23 +0100
commit71afaecef1b2593c92e9603a00232b189f376700 (patch)
treebba6044a7f3f2ad5114eced0a7edb0806dbc8c89 /intrpvar.h
parent90ce4d0578578878b213fa81e151eead287da29e (diff)
downloadperl-71afaecef1b2593c92e9603a00232b189f376700.tar.gz
Eliminate PL_sawalias, GPf_ALIASED_SV
These two commits: v5.21.3-759-gff2a62e "Skip no-common-vars optimisation for aliases" v5.21.4-210-gc997e36 "Make list assignment respect foreach aliasing" added a run-time mechanism to detect aliased package variables, by either "*pkg = ...," or "for $pkg (...)", and used that information to enable the OPpASSIGN_COMMON mechanism at runtime for detecting common elements in a list assign, e.g. for $alias ($a, ...) { ($a,$b) = (1,$alias); } The previous commit but one changed the OPpASSIGN_COMMON mechanism such that it no longer uses PL_sawalias. So this var and the mechanism for setting it can now be removed. This commit removes: * the PL_sawalias variable * the GPf_ALIASED_SV GP flag * the SAVEt_GP_ALIASED_SV and save_aliased_sv() save type.
Diffstat (limited to 'intrpvar.h')
-rw-r--r--intrpvar.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/intrpvar.h b/intrpvar.h
index 6ee88b31d2..142542a030 100644
--- a/intrpvar.h
+++ b/intrpvar.h
@@ -60,9 +60,6 @@ PERLVAR(I, markstack, I32 *) /* stack_sp locations we're
PERLVAR(I, markstack_ptr, I32 *)
PERLVAR(I, markstack_max, I32 *)
-PERLVARI(I, sawalias, bool, FALSE) /* must enable common-vars
- pessimisation */
-
#ifdef PERL_HASH_RANDOMIZE_KEYS
#ifdef USE_PERL_PERTURB_KEYS
PERLVARI(I, hash_rand_bits_enabled, U8, 1) /* used to randomize hash stuff 0 == no-random, 1 == random, 2 == determinsitic */