diff options
| author | Aurelien Jarno <aurelien@aurel32.net> | 2012-10-09 21:53:21 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2012-10-31 22:20:47 +0100 |
| commit | fc40787abcf8452b8f50d92b7a13243a12972c7a (patch) | |
| tree | ff8c86f42a6930e4e7650c264e8b540bc0e1bd43 /target-mips/helper.h | |
| parent | 18bba4dc781a273c2c1ff5baec2909c214e2e0fa (diff) | |
target-mips: implement unaligned loads using TCG
Load/store from helpers should be avoided as they are quite
inefficient. Rewrite unaligned loads instructions using TCG and
aligned loads. The number of actual loads operations to implement
an unaligned load instruction is reduced from up to 8 to 1.
Note: As we can't rely on shift by 32 or 64 undefined behaviour,
the code loads already shift by one constants.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-mips/helper.h')
| -rw-r--r-- | target-mips/helper.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/target-mips/helper.h b/target-mips/helper.h index da8d9a1381..acf9ebd759 100644 --- a/target-mips/helper.h +++ b/target-mips/helper.h @@ -4,13 +4,9 @@ DEF_HELPER_3(raise_exception_err, noreturn, env, i32, int) DEF_HELPER_2(raise_exception, noreturn, env, i32) #ifdef TARGET_MIPS64 -DEF_HELPER_4(ldl, tl, env, tl, tl, int) -DEF_HELPER_4(ldr, tl, env, tl, tl, int) DEF_HELPER_4(sdl, void, env, tl, tl, int) DEF_HELPER_4(sdr, void, env, tl, tl, int) #endif -DEF_HELPER_4(lwl, tl, env, tl, tl, int) -DEF_HELPER_4(lwr, tl, env, tl, tl, int) DEF_HELPER_4(swl, void, env, tl, tl, int) DEF_HELPER_4(swr, void, env, tl, tl, int) |