| commit | 09680e3ee7d72978b493dd4127ce2e769f96a45e | |
| author | Haochen Gui <guihaoc@gcc.gnu.org> | |
| Thu, 25 Apr 2024 01:55:53 +0000 (25 09:55 +0800) | ||
| committer | Haochen Gui <guihaoc@gcc.gnu.org> | |
| Thu, 25 Apr 2024 01:55:53 +0000 (25 09:55 +0800) | ||
| tree | 1bae44e8ec8379df7fff3d7bee90dbd5b20dc743 | treesnapshot (tar.gz zip) |
| parent | d44c2052c59545731edcf7f99a32bcef3b0415b6 | commitdiff |
rs6000: Use bcdsub. instead of bcdadd. for bcd invalid number checking
bcdadd. might causes overflow which also set the overflow/invalid bit.
bcdsub. doesn't have the issue when do subtracting on two same bcd number.
gcc/
* config/rs6000/altivec.md (*bcdinvalid_<mode>): Replace bcdadd
with bcdsub.
(bcdinvalid_<mode>): Likewise.
gcc/testsuite/
* gcc.target/powerpc/bcd-4.c: Adjust the number of bcdadd and
bcdsub.
bcdadd. might causes overflow which also set the overflow/invalid bit.
bcdsub. doesn't have the issue when do subtracting on two same bcd number.
gcc/
* config/rs6000/altivec.md (*bcdinvalid_<mode>): Replace bcdadd
with bcdsub.
(bcdinvalid_<mode>): Likewise.
gcc/testsuite/
* gcc.target/powerpc/bcd-4.c: Adjust the number of bcdadd and
bcdsub.
| gcc/config/rs6000/altivec.md | diffblobblamehistory | |
| gcc/testsuite/gcc.target/powerpc/bcd-4.c | diffblobblamehistory |