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glr.c: omit yyresolveLocations when locations are disabled.

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This prevents gcc 4.6.0's -Wunused-but-set-variable from warning
about yyresolveLocations's local yyrhsloc.  When locations are
enabled, there's no such warning because YYLLOC_DEFAULT then uses
yyrhsloc.  Reported by Jim Meyering at
<http://lists.gnu.org/archive/html/bug-bison/2011-04/msg00002.html>.
* data/glr.c (yyresolveLocations): Omit definition when locations
are disabled.
(yyresolveValue): Omit yyresolveLocations invocation when
locations are disabled.
(cherry picked from commit 55dd356336)
This commit is contained in:
Joel E. Denny
2011-04-16 18:15:40 -04:00
parent a801089ca3
commit 67b8cfbd94
2 changed files with 17 additions and 4 deletions
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13
ChangeLog
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@@ -1,3 +1,16 @@
2011-04-16 Joel E. Denny <joeldenny@joeldenny.org>
glr.c: omit yyresolveLocations when locations are disabled.
This prevents gcc 4.6.0's -Wunused-but-set-variable from warning
about yyresolveLocations's local yyrhsloc. When locations are
enabled, there's no such warning because YYLLOC_DEFAULT then uses
yyrhsloc. Reported by Jim Meyering at
<http://lists.gnu.org/archive/html/bug-bison/2011-04/msg00002.html>.
* data/glr.c (yyresolveLocations): Omit definition when locations
are disabled.
(yyresolveValue): Omit yyresolveLocations invocation when
locations are disabled.
2011-04-16 Joel E. Denny <joeldenny@joeldenny.org>
gnulib, autoconf: update.

8
data/glr.c
View File

@@ -1757,7 +1757,7 @@ yyreportAmbiguity (yySemanticOption* yyx0,
yyerror (]b4_yyerror_args[YY_("syntax is ambiguous"));
return yyabort;
}
}]b4_locations_if([[
/** Resolve the locations for each of the YYN1 states in *YYSTACKP,
* ending at YYS1. Has no effect on previously resolved states.
@@ -1815,7 +1815,7 @@ yyresolveLocations (yyGLRState* yys1, int yyn1,
yylloc = yylloc_current;
}
}
}
}]])[
/** Resolve the ambiguity represented in state YYS in *YYSTACKP,
* perform the indicated actions, and set the semantic value of YYS.
@@ -1850,8 +1850,8 @@ yyresolveValue (yyGLRState* yys, yyGLRStack* yystackp]b4_user_formals[)
{
switch (yypreference (yybest, yyp))
{
case 0:
yyresolveLocations (yys, 1, yystackp]b4_user_args[);
case 0:]b4_locations_if([[
yyresolveLocations (yys, 1, yystackp]b4_user_args[);]])[
return yyreportAmbiguity (yybest, yyp]b4_pure_args[);
break;
case 1: