| commit | df072774cb0175c1ae93af18c6e1f54624831b7e | |
| author | Richard Henderson <rth@twiddle.net> | |
| Thu, 27 Oct 2011 21:15:00 +0000 (27 14:15 -0700) | ||
| committer | Blue Swirl <blauwirbel@gmail.com> | |
| Sun, 30 Oct 2011 09:06:23 +0000 (30 09:06 +0000) | ||
| tree | 110de7b288b7d54d2b5e7dd7635bb42aa1205497 | treesnapshot (tar.gz zip) |
| parent | 7999f7e1273b63ec3a60d8cf2cb79cb88575744a | commitdiff |
tcg: Optimize some forms of deposit.
If the deposit replaces the entire word, optimize to a move.
If we're inserting to the top of the word, avoid the mask of arg2
as we'll be shifting out all of the garbage and shifting in zeros.
If the host is 32-bit, reduce a 64-bit deposit to a 32-bit deposit
when possible.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
If the deposit replaces the entire word, optimize to a move.
If we're inserting to the top of the word, avoid the mask of arg2
as we'll be shifting out all of the garbage and shifting in zeros.
If the host is 32-bit, reduce a 64-bit deposit to a 32-bit deposit
when possible.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
| tcg/tcg-op.h | diffblobblamehistory |