From 38a4afeecdf392267ff73a27a69f458b5d8b424c Mon Sep 17 00:00:00 2001 From: Mark Mitchell Date: Sun, 23 Apr 2006 18:04:33 +0000 Subject: re PR c++/26534 ([4.1] bitfield wrong optimize) 2006-04-23 Mark Mitchell PR c++/26534 * c-common.h (c_build_bitfield_integer_type): Declare. * c-decl.c (c_build_bitfield_integer_type): Move to ... * c-common.c (c_build_bitfield_integer_type): ... here. 2006-04-23 Mark Mitchell PR c++/26534 * cp-tree.h (is_bitfield_expr_with_lowered_type): New function. * typeck.c (is_bitfield_expr_with_lowered_type): New function. (decay_conversion): Convert bitfield expressions to the correct type. (build_modify_expr): Remove spurious conversions. * class.c (layout_class_type): Modify the type of bitfields to indicate a limited range. * call.c (standard_conversion): Adjust the type of bitfield expressions used in an rvalue context. (build_conditional_expr): Likewise. 2006-04-23 Mark Mitchell PR c++/26534 * g++.dg/opt/bitfield1.C: New test. * g++.dg/compat/abi/bitfield1_main.C: Add -w. * g++.dg/compat/abi/bitfield1_x.C: Likewise. * g++.dg/compat/abi/bitfield1_y.C: Likewise. * g++.dg/compat/abi/bitfield2_main.C: Likewise. * g++.dg/compat/abi/bitfield2_x.C: Likewise. * g++.dg/compat/abi/bitfield2_y.C: Likewise. * g++.dg/abi/bitfield1.C: Add dg-warning markers. * g++.dg/abi/bitfield2.C: Likewise. * g++.dg/init/bitfield1.C: Likewise. From-SVN: r113199 --- gcc/c-decl.c | 23 ----------------------- 1 file changed, 23 deletions(-) (limited to 'gcc/c-decl.c') diff --git a/gcc/c-decl.c b/gcc/c-decl.c index db906b4..f4d3330 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -3814,29 +3814,6 @@ check_bitfield_type_and_width (tree *type, tree *width, const char *orig_name) } } -/* Build a bit-field integer type for the given WIDTH and UNSIGNEDP. */ -static tree -c_build_bitfield_integer_type (unsigned HOST_WIDE_INT width, int unsignedp) -{ - /* Extended integer types of the same width as a standard type have - lesser rank, so those of the same width as int promote to int or - unsigned int and are valid for printf formats expecting int or - unsigned int. To avoid such special cases, avoid creating - extended integer types for bit-fields if a standard integer type - is available. */ - if (width == TYPE_PRECISION (integer_type_node)) - return unsignedp ? unsigned_type_node : integer_type_node; - if (width == TYPE_PRECISION (signed_char_type_node)) - return unsignedp ? unsigned_char_type_node : signed_char_type_node; - if (width == TYPE_PRECISION (short_integer_type_node)) - return unsignedp ? short_unsigned_type_node : short_integer_type_node; - if (width == TYPE_PRECISION (long_integer_type_node)) - return unsignedp ? long_unsigned_type_node : long_integer_type_node; - if (width == TYPE_PRECISION (long_long_integer_type_node)) - return (unsignedp ? long_long_unsigned_type_node - : long_long_integer_type_node); - return build_nonstandard_integer_type (width, unsignedp); -} /* Given declspecs and a declarator, determine the name and type of the object declared -- cgit v1.1