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re PR target/89071 (AVX vcvtsd2ss lets us avoid PXOR dependency breaking for scalar...
authorUros Bizjak <ubizjak@gmail.com>
Thu, 31 Jan 2019 20:06:42 +0000 (21:06 +0100)
committerUros Bizjak <uros@gcc.gnu.org>
Thu, 31 Jan 2019 20:06:42 +0000 (21:06 +0100)
commit1d4b4f4979171ef0dacc452439e3a317795441db
tree5064efd8a5202412d2342f7204758c9188c1408ctree
parentec2be203d1d8c5cd690cc1444303a2ca9187e962commit | diff
re PR target/89071 (AVX vcvtsd2ss lets us avoid PXOR dependency breaking for scalar float<->double and other scalar xmm,xmm instructions)

PR target/89071
* config/i386/i386.md (*extendsfdf2): Split out reg->reg
alternative to avoid partial SSE register stall for TARGET_AVX.
(truncdfsf2): Ditto.
(sse4_1_round<mode>2): Ditto.

From-SVN: r268427
gcc/ChangeLog diff | blob | history
gcc/config/i386/i386.md diff | blob | history