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authorUros Bizjak <uros@gcc.gnu.org>2017-10-18 22:19:05 +0200
committerUros Bizjak <uros@gcc.gnu.org>2017-10-18 22:19:05 +0200
commitfe94440235cfaa57ee1c18abfde29c20fa3ff863 (patch)
tree71539ec766a5bfb60fbce3e1155fdd91d1dc7dfc /libtool.m4
parente61a4f52126624a6fdd0c63e9f39b53095190a77 (diff)
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re PR target/82580 (Optimize comparisons for __int128 on x86-64)
PR target/82580 * config/i386/i386-modes.def (CCGZ): New CC mode. * config/i386/i386.md (sub<mode>3_carry_ccgz): New insn pattern. * config/i386/predicates.md (ix86_comparison_operator): Handle CCGZmode. * config/i386/i386.c (ix86_expand_branch) <case E_TImode>: Emulate LE, LEU, GT, GTU, LT, LTU, GE and GEU double-word comparisons with double-word subtraction. (put_condition_code): Handle CCGZmode. testsuite/ChangeLog: PR target/82580 * gcc.target/i386/pr82580.c: New test. From-SVN: r253867
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