[Bug middle-end/13696] [3.4 Regression] enum not useable as array index?

["cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-16 05:15 -------
Subject: Bug 13696

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	sayle@gcc.gnu.org	2004-02-16 05:15:20

Modified files:
	gcc            : ChangeLog fold-const.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/opt: fold1.C 
	gcc/testsuite/gcc.c-torture/compile: 20040209-1.c 
	gcc/testsuite/gcc.dg: pr14092-1.c 

Log message:
	Backport from mainline:
	
	2004-02-07  Roger Sayle  <roger@eyesopen.com>
	PR middle-end/13696
	* fold-const.c (fold_convert): New function to provide type
	conversion to the middle-end without using convert.
	(negate_expr, associate_trees, size_diffop, omit_one_operand,
	operand_equal_for_comparison_p, pedantic_omit_one_operand,
	invert_truthvalue, optimize_bit_field_compare, range_binop,
	decode_field_reference, make_range, build_range_check, unextend,
	fold_truthop, extract_muldiv_1, fold_mathfn_compare,
	fold_binary_op_with_conditional_arg, fold_inf_compare,
	fold_single_bit_test, fold, multiple_of_p): Replace all calls to
	convert with calls to fold_convert.
	
	2004-02-09  Roger Sayle  <roger@eyesopen.com>
	* fold-const.c (fold) <NOP_EXPR>: Use the original type conversion
	tree code rather than call fold_convert, which doesn't specify a
	default floating point to integer conversion.
	
	2004-02-10  Paolo Bonzini  <bonzini@gnu.org>
	PR c/14092
	* fold-const.c (fold) <NEGATE_EXPR>: Convert result of
	negate_expr back to the original type.
	
	2004-02-07  Roger Sayle  <roger@eyesopen.com>
	PR middle-end/13696
	* g++.dg/opt/fold1.C: New test case.
	
	2004-02-09  Roger Sayle  <roger@eyesopen.com>
	* gcc.c-torture/compile/20040209-1.c: New test case.
	
	2004-02-10  Paolo Bonzini  <bonzini@gnu.org>
	PR c/14092
	* gcc.dg/pr14092-1.c: New testcase.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.199&r2=2.2326.2.200
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.322.2.3&r2=1.322.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.80&r2=1.3389.2.81
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/opt/fold1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20040209-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/pr14092-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.2.4.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13696