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[AArch64] Enable compare branch fusion
authorWilco Dijkstra <wdijkstr@arm.com>
Fri, 17 Jan 2020 14:27:14 +0000 (14:27 +0000)
committerSebastian Pop <spop@amazon.com>
Tue, 29 Sep 2020 21:10:06 +0000 (21:10 +0000)
commita91f4d0515f67f0a5b1b9b7c154778a9bc5c82d4
treed56bf9ca0e04446bf036fb069a5c7d24ff2a54bctree
parent2afe71431756fe1767dd65096ef20fddb2f9bf8bcommit | diff
[AArch64] Enable compare branch fusion

Enable the most basic form of compare-branch fusion since various CPUs
support it. This has no measurable effect on cores which don't support
branch fusion, but increases fusion opportunities on cores which do.

2020-01-17  Wilco Dijkstra  <wdijkstr@arm.com>

gcc/
* config/aarch64/aarch64.c (generic_tunings): Add branch fusion.
(neoversen1_tunings): Likewise.

(cherry picked from commit 6ed8c923325c9b2fcb30996fa14582ac136d9329)
gcc/config/aarch64/aarch64.c diff | blob | blame | history
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