motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 16:23:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target-sparc: Inline some generation of carry for ADDX/SUBX.

Browse source 
Computing carry is trivial for some inputs.  By avoiding an
external function call, we generate near-optimal code for
the common cases of add+addx (double-word arithmetic) and
cmp+addx (a setcc pattern).

Signed-off-by: Richard Henderson <rth@twiddle.net>
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2010-05-12 11:04:27 -07:00 • committed by Blue Swirl
parent da441cffde
commit 70c482852a
3 changed files with 200 additions and 76 deletions
Download patch file Download diff file Expand all files Collapse all files

2
target-sparc/helper.h
View file

@ -158,6 +158,6 @@ VIS_CMPHELPER(cmpne);
#undef VIS_HELPER
#undef VIS_CMPHELPER
DEF_HELPER_0(compute_psr, void);
DEF_HELPER_0(compute_C_icc, tl);
DEF_HELPER_0(compute_C_icc, i32);
#include "def-helper.h"