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patches/gcc/4.0.0/pr21173-fix.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Feb 24 11:00:05 2007 +0000 (2007-02-24)
changeset 1 eeea35fbf182
permissions -rw-r--r--
Add the full crosstool-NG sources to the new repository of its own.
You might just say: 'Yeah! crosstool-NG's got its own repo!".
Unfortunately, that's because the previous repo got damaged beyond repair and I had no backup.
That means I'm putting backups in place in the afternoon.
That also means we've lost history... :-( 
     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
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