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| author | Richard Biener <rguenther@suse.de> | 2012-10-19 10:32:29 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-10-19 10:32:29 +0000 |
| commit | dfc2e2acc9720bec4631e07278f3be7cc915a69a (patch) | |
| tree | 662e3a1f66037369a977c4a97761a98e983b085c | |
| parent | 57fc62cb326ab913d7eef6d0ac0cd7788edd1797 (diff) | |
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re PR tree-optimization/54976 (FAIL: gcc.dg/torture/pr47975.c (internal compiler error))
2012-10-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/54976
* tree-vect-stmts.c (get_vectype_for_scalar_type_and_size):
Robustify against odd inner_mode inputs.
From-SVN: r192611
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-vect-stmts.c | 13 |
2 files changed, 15 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cdba336..3741614 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-10-19 Richard Biener <rguenther@suse.de> + + PR tree-optimization/54976 + * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): + Robustify against odd inner_mode inputs. + 2012-10-19 Zhenqiang Chen <zhenqiang.chen@linaro.org> PR target/54892 diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 70bcebb..09c8596 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -6082,16 +6082,21 @@ get_vectype_for_scalar_type_and_size (tree scalar_type, unsigned size) When the component mode passes the above test simply use a type corresponding to that mode. The theory is that any use that would cause problems with this will disable vectorization anyway. */ - if (!SCALAR_FLOAT_TYPE_P (scalar_type) - && !INTEGRAL_TYPE_P (scalar_type) - && !POINTER_TYPE_P (scalar_type)) + else if (!SCALAR_FLOAT_TYPE_P (scalar_type) + && !INTEGRAL_TYPE_P (scalar_type) + && !POINTER_TYPE_P (scalar_type)) scalar_type = lang_hooks.types.type_for_mode (inner_mode, 1); /* We can't build a vector type of elements with alignment bigger than their size. */ - if (nbytes < TYPE_ALIGN_UNIT (scalar_type)) + else if (nbytes < TYPE_ALIGN_UNIT (scalar_type)) scalar_type = lang_hooks.types.type_for_mode (inner_mode, 1); + /* If we felt back to using the mode fail if there was + no scalar type for it. */ + if (scalar_type == NULL_TREE) + return NULL_TREE; + /* If no size was supplied use the mode the target prefers. Otherwise lookup a vector mode of the specified size. */ if (size == 0) |