| commit | 18537f76d8d63e502aa58ee44834a22454bf9951 | |
| author | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 12 Sep 2018 10:58:42 +0000 (12 10:58 +0000) | ||
| committer | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 12 Sep 2018 10:58:42 +0000 (12 10:58 +0000) | ||
| tree | 943924130bdc7526d1cfc789e2cefae0cb95d32d | treesnapshot (tar.gz zip) |
| parent | f91d3a9d733b9985fc02ae62cbc7e6bc7a27417f | commitdiff |
S/390: Use proper rounding mode for DFP to BFD conversions
According to IEEE 754 2008 4.3 'Rounding-direction attributes' the
rounding mode of the target format needs to be used. By not setting
the value so far we have always used the DFP rounding mode.
gcc/ChangeLog:
2018-09-12 Andreas Krebbel <krebbel@linux.ibm.com>
* config/s390/s390.md (PFPO_RND_MODE_DFP, PFPO_RND_MODE_BFP): New
constants.
("trunc<BFP:mode><DFP_ALL:mode>2")
("trunc<DFP_ALL:mode><BFP:mode>2")
("extend<BFP:mode><DFP_ALL:mode>2")
("extend<DFP_ALL:mode><BFP:mode>2"): Set proper rounding mode
according to the target operand type.
gcc/testsuite/ChangeLog:
2018-09-12 Andreas Krebbel <krebbel@linux.ibm.com>
* gcc.target/s390/dfp_to_bfp_rounding.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@264234 138bc75d-0d04-0410-961f-82ee72b054a4
According to IEEE 754 2008 4.3 'Rounding-direction attributes' the
rounding mode of the target format needs to be used. By not setting
the value so far we have always used the DFP rounding mode.
gcc/ChangeLog:
2018-09-12 Andreas Krebbel <krebbel@linux.ibm.com>
* config/s390/s390.md (PFPO_RND_MODE_DFP, PFPO_RND_MODE_BFP): New
constants.
("trunc<BFP:mode><DFP_ALL:mode>2")
("trunc<DFP_ALL:mode><BFP:mode>2")
("extend<BFP:mode><DFP_ALL:mode>2")
("extend<DFP_ALL:mode><BFP:mode>2"): Set proper rounding mode
according to the target operand type.
gcc/testsuite/ChangeLog:
2018-09-12 Andreas Krebbel <krebbel@linux.ibm.com>
* gcc.target/s390/dfp_to_bfp_rounding.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@264234 138bc75d-0d04-0410-961f-82ee72b054a4