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re PR tree-optimization/26359 (Over optimization of loop when using -ftree-vectorize) 

PR tree-optimization/26359
        * tree-ssa-alias.c (new_type_alias): Set fields for new tag.

From-SVN: r111451
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Dorit Nuzman 2006-02-26 09:27:35 +00:00 committed by Dorit Nuzman
parent 2cd9a06ba8
commit afa38a953b
5 changed files with 37 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2006-02-26 Dorit Nuzman <dorit@il.ibm.com>
PR tree-optimization/26359
* tree-ssa-alias.c (new_type_alias): Set fields for new tag.
2006-02-25 Roger Sayle <roger@eyesopen.com>
* simplify-rtx.c (simplify_relational_operation_1): Simplify

7
gcc/testsuite/ChangeLog
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@ -1,3 +1,10 @@
2006-02-26 Dorit Nuzman <dorit@il.ibm.com>
PR tree-optimizations/26359
* gcc.dg/vect/vect.exp: Compile tests prefixed with "dump-tree-dceloop"
with -fdump-tree-dceloop-details.
* gcc.dg/vect/dump-tree-dceloop-pr26359.c: New test.
2006-02-25 Roger Sayle <roger@eyesopen.com>
PR middle-end/23673

16
gcc/testsuite/gcc.dg/vect/dump-tree-dceloop-pr26359.c Normal file
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@ -0,0 +1,16 @@
/* { dg-do compile } */
/* { dg-require-effective-target vect_int } */
int a[256], b[256], c[256];
foo () {
int i;
for (i=0; i<256; i++){
a[i] = b[i] + c[i];
}
}
/* { dg-final { scan-tree-dump-times "Deleting : vect_" 0 "dceloop" } } */
/* { dg-final { cleanup-tree-dump "dceloop" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */

6
gcc/testsuite/gcc.dg/vect/vect.exp
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@ -108,6 +108,12 @@ lappend DEFAULT_VECTCFLAGS "-ftrapv"
dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/trapv-vect*.\[cS\]]] \
"" $DEFAULT_VECTCFLAGS
# -fdump-tree-dceloop-details tests
set DEFAULT_VECTCFLAGS $SAVED_DEFAULT_VECTCFLAGS
lappend DEFAULT_VECTCFLAGS "-fdump-tree-dceloop-details"
dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/dump-tree-dceloop-*.\[cS\]]] \
"" $DEFAULT_VECTCFLAGS
# With -Os
lappend DEFAULT_VECTCFLAGS "-Os"
dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/Os-vect-*.\[cS\]]] \

3
gcc/tree-ssa-alias.c
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@ -2712,6 +2712,9 @@ new_type_alias (tree ptr, tree var)
add_may_alias (tag, al);
}
}
TREE_READONLY (tag) = TREE_READONLY (var);
MTAG_GLOBAL (tag) = is_global_var (var);
}