From: Richard Biener Date: Fri, 19 Oct 2012 10:32:29 +0000 (+0000) Subject: re PR tree-optimization/54976 (FAIL: gcc.dg/torture/pr47975.c (internal compiler... X-Git-Tag: misc/gccgo-go1_1_2~89 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=dfc2e2acc9720bec4631e07278f3be7cc915a69a;p=thirdparty%2Fgcc.git re PR tree-optimization/54976 (FAIL: gcc.dg/torture/pr47975.c (internal compiler error)) 2012-10-19 Richard Biener PR tree-optimization/54976 * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Robustify against odd inner_mode inputs. From-SVN: r192611 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cdba3366b009..3741614ea83a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-10-19 Richard Biener + + 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 PR target/54892 diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 70bcebbe99bd..09c85967d432 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)