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re PR target/78904 (zero-extracts are not effective)
authorUros Bizjak <ubizjak@gmail.com>
Thu, 29 Dec 2016 21:41:07 +0000 (22:41 +0100)
committerUros Bizjak <uros@gcc.gnu.org>
Thu, 29 Dec 2016 21:41:07 +0000 (22:41 +0100)
commita455baa99483a4f5a1e667f35bf682e3f3071f53
tree3429e240878ad3f1f8637215c6971fd52e431d4atree
parent2ae2d394c1f9928fcb4bb7efdf9874edb787936acommit | diff
re PR target/78904 (zero-extracts are not effective)

PR target/78904
* config/i386/i386.md (*extvqi): Remove insn pattern.
(divmodqi4): Update expander to generate QImode zero-extract from AH.

testsuite/ChangeLog:

PR target/78904
* gcc.target/i386/pr78904-6.c: New test.

From-SVN: r243968
gcc/ChangeLog diff | blob | history
gcc/config/i386/i386.md diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.target/i386/pr78904-6.c [new file with mode: 0644] blob