------- Comment #4 from jsm28 at gcc dot gnu dot org 2008-10-29 17:06 ------- Subject: Bug 36578
Author: jsm28 Date: Wed Oct 29 17:05:42 2008 New Revision: 141432 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141432 Log: PR middle-end/36578 * convert.c (convert_to_real): Do not optimize conversions of binary arithmetic operations between binary and decimal floating-point types. Consider mode of target type in determining decimal type for arithmetic. Unless flag_unsafe_math_optimizations, do not optimize binary conversions where this may change rounding behavior. * real.c (real_can_shorten_arithmetic): New. * real.h (real_can_shorten_arithmetic): Declare. testsuite: * gcc.dg/dfp/convert-bfp-13.c, gcc.dg/dfp/convert-bfp-14.c, gcc.dg/dfp/convert-dfp-fold-2.c, gcc.target/i386/pr36578-1.c, gcc.target/i386/pr36578-2.c: New tests. Added: trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-13.c trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-14.c trunk/gcc/testsuite/gcc.dg/dfp/convert-dfp-fold-2.c trunk/gcc/testsuite/gcc.target/i386/pr36578-1.c trunk/gcc/testsuite/gcc.target/i386/pr36578-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/convert.c trunk/gcc/real.c trunk/gcc/real.h trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36578
