| commit | 58803a5ede494d7a8ff5ac1ab88cee15bb229cb3 | |
| author | Stas Boukarev <stassats@gmail.com> | |
| Thu, 1 May 2014 17:13:07 +0000 (1 21:13 +0400) | ||
| committer | Alastair Bridgewater <nyef@kana.lisphacker.com> | |
| Sat, 10 May 2014 19:15:52 +0000 (10 15:15 -0400) | ||
| tree | 0d275cdeae516833ba2511ea19a3042654727b8e | treesnapshot (tar.gz zip) |
| parent | c2e7ad0b2f4a967dcb599af3fdc80e4a0dcb6478 | commitdiff |
Optimize fixnum LOGNOT on ARM.
The existing fixnum version broke the tagged register invariant by
performing NOT on a boxed register, but its cost was higher than
the signed version, so it was never invoked.
The new version has the same number of instructions and doesn't break
boxed registers.
The existing fixnum version broke the tagged register invariant by
performing NOT on a boxed register, but its cost was higher than
the signed version, so it was never invoked.
The new version has the same number of instructions and doesn't break
boxed registers.
| src/compiler/arm/arith.lisp | diffblobblamehistory |