From: Andrew Pinski Date: Wed, 15 Jun 2005 20:13:11 +0000 (+0000) Subject: re PR tree-optimization/21923 (Ada compiler fails to build on gcc 4.1) X-Git-Tag: misc/cutover-cvs2svn~2387 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2decfada04c98ab3b9764fd39120bad1325443d2;p=thirdparty%2Fgcc.git re PR tree-optimization/21923 (Ada compiler fails to build on gcc 4.1) 2005-06-15 Andrew Pinski PR tree-opt/21923 * tree-ssa.c (tree_ssa_useless_type_conversion_1): Conversions between integer types whos ranges are different are not useless. From-SVN: r100996 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2c988366848b..f0cbb568fa5a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2005-06-15 Andrew Pinski + + PR tree-opt/21923 + * tree-ssa.c (tree_ssa_useless_type_conversion_1): Conversions between + integer types whos ranges are different are not useless. + 2005-06-15 Andrew Pinski PR tree-opt/22024 diff --git a/gcc/tree-ssa.c b/gcc/tree-ssa.c index 0a83b786b7de..50c6e7266f52 100644 --- a/gcc/tree-ssa.c +++ b/gcc/tree-ssa.c @@ -902,7 +902,9 @@ tree_ssa_useless_type_conversion_1 (tree outer_type, tree inner_type) else if (INTEGRAL_TYPE_P (inner_type) && INTEGRAL_TYPE_P (outer_type) && TYPE_UNSIGNED (inner_type) == TYPE_UNSIGNED (outer_type) - && TYPE_PRECISION (inner_type) == TYPE_PRECISION (outer_type)) + && TYPE_PRECISION (inner_type) == TYPE_PRECISION (outer_type) + && simple_cst_equal (TYPE_MAX_VALUE (inner_type), TYPE_MAX_VALUE (outer_type)) + && simple_cst_equal (TYPE_MIN_VALUE (inner_type), TYPE_MIN_VALUE (outer_type))) { bool first_boolean = (TREE_CODE (inner_type) == BOOLEAN_TYPE); bool second_boolean = (TREE_CODE (outer_type) == BOOLEAN_TYPE);