Mercurialcrosstool-ng / file revision
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
patches/gcc/4.0.0/140-pr21173-fix.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Feb 17 22:08:06 2008 +0000 (2008-02-17)
changeset 431 8bde4c6ea47a
permissions -rw-r--r--
Robert P. J. DAY says:

apparently, the patchset for gcc 4.2.1 applies properly to the
source for gcc 4.2.2 and gcc 4.2.3. so, if you want, you can simply
add support for those last two just by augmenting menuconfig and
adding a couple symlinks for those two directories. seems like a
cheap way to add a couple new versions. 
     1 See http://gcc.gnu.org/PR21173

     2 This is a fix for a last minute brown-bag bug with gcc-4.0.0

     3 

     4  ------- Additional Comment #24 From CVS Commits 2005-04-25 14:03 [reply] ------- 

     5 Subject: Bug 21173

     6 

     7 CVSROOT:        /cvs/gcc

     8 Module name:    gcc

     9 Branch:         gcc-4_0-branch

    10 Changes by:     dberlin@gcc.gnu.org     2005-04-25 14:02:38

    11 

    12 Modified files:

    13         gcc            : ChangeLog tree-ssa-pre.c 

    14 

    15 Log message:

    16         2005-04-25  Daniel Berlin  <dberlin@dberlin.org>

    17         

    18         Fix PR tree-optimization/21173

    19         

    20         * tree-ssa-pre.c (create_expression_by_pieces): Call unshare_expr

    21         on things we pass to force_gimple_operand.  Don't try to special

    22         case min_invariants.

    23 

    24 Patches:

    25 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.192&r2=2.7592.2.193

    26 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-pre.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.65.4.2&r2=2.65.4.3

    27 

    28 ===================================================================

    29 RCS file: /cvs/gcc/gcc/gcc/tree-ssa-pre.c,v

    30 retrieving revision 2.65.4.2

    31 retrieving revision 2.65.4.3

    32 diff -u -r2.65.4.2 -r2.65.4.3

    33 --- gcc/gcc/tree-ssa-pre.c	2005/04/17 23:40:31	2.65.4.2

    34 +++ gcc/gcc/tree-ssa-pre.c	2005/04/25 14:02:31	2.65.4.3

    35 @@ -1330,7 +1330,8 @@

    36  	

    37  	folded = fold (build (TREE_CODE (expr), TREE_TYPE (expr), 

    38  			      genop1, genop2));

    39 -	newexpr = force_gimple_operand (folded, &forced_stmts, false, NULL);

    40 +	newexpr = force_gimple_operand (unshare_expr (folded), 

    41 +					&forced_stmts, false, NULL);

    42  	if (forced_stmts)

    43  	  {

    44  	    tsi = tsi_start (forced_stmts);

    45 @@ -1372,14 +1373,8 @@

    46  	add_referenced_tmp_var (temp);

    47  	folded = fold (build (TREE_CODE (expr), TREE_TYPE (expr), 

    48  			      genop1));

    49 -	/* If the generated operand  is already GIMPLE min_invariant

    50 -	   just use it instead of calling force_gimple_operand on it,

    51 -	   since that may make it not invariant by copying it into an

    52 -	   assignment.  */

    53 -	if (!is_gimple_min_invariant (genop1))

    54 -	  newexpr = force_gimple_operand (folded, &forced_stmts, false, NULL);

    55 -	else

    56 -	  newexpr = genop1;

    57 +	newexpr = force_gimple_operand (unshare_expr (folded), 

    58 +					&forced_stmts, false, NULL);

    59  	if (forced_stmts)

    60  	  {

    61  	    tsi = tsi_start (forced_stmts);

    62 

    63     0K .                                                         1.24 MB/s

    64 

    65 13:16:54 (1.24 MB/s) - `-' saved [1303]

    66
crosstool-ng