[Bug c/11449] [3.4 Regression] ICE in invert_truthvalue called on AND operation

[cvs-commit at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11449



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-07-10 12:40 -------
Subject: Bug 11449

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	kazu@gcc.gnu.org	2003-07-10 12:40:10

Modified files:
	gcc            : fold-const.c 
Added files:
	gcc/testsuite/gcc.c-torture/compile: 20030707-1.c 

Log message:
	PR c/11449
	* fold-const.c (sign_bit_p): Return EXP if VAL is the sign bit
	of HOST_WIDE_INT.
	(fold_single_bit_test): If sign_bit_p() fails, assume that the
	bit being tested is not a sign bit.
	
	PR c/11449
	* gcc.c-torture/compile/20030707-1.c: New.
	* config/h8300/h8300.md (a peephole2): New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.279&r2=1.280
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20030707-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1