Usually, eliminate an operation from the translator by combining
a shift with an extract.
In the case of gen_set_NZ64, we don't need a boolean value for cpu_ZF,
merely a non-zero value. Given that we can extract both halves of a
64-bit input in one call, this simplifies the code.
Backports commit 7cb36e18b2f1c1f971ebdc2121de22a8c2e94fd6 from qemu
For !SF, this initial ext32u can't be optimized away by the
current TCG code generator. (It would require backward bit
liveness propagation.)
Backports commit d3a77b42decd0cbfa62a5526e67d1d6d380c83a9 from qemu
This can allow much of a ccmp to be elided when particular
flags are subsequently dead.
Backports commit 7dd03d773e0dafae9271318fc8d6b2b14de74403 from qemu
Handling this with TCG_COND_ALWAYS will allow these unlikely
cases to be handled without special cases in the rest of the
translator. The TCG optimizer ought to be able to reduce
these ALWAYS conditions completely.
Backports commit 9305eac09e61d857c9cc11e20db754dfc25a82db from qemu
Split arm_gen_test_cc into 3 functions, so that it can be reused
for non-branch TCG comparisons.
Backports commit 6c2c63d3a02c79e9035ca0370cc549d0f938a4dd from qemu
The extra information is not yet used but it is now available.
This requires minor changes through all of the tcg backends.
Backports commit 3972ef6f830d65e9bacbd31257abedc055fd6dc8 from qemu
This is improved type checking for the translators -- it's no longer
possible to accidentally swap arguments to the branch functions.
Note that the code generating backends still manipulate labels as int.
With notable exceptions, the scope of the change is just a few lines
for each target, so it's not worth building extra machinery to do this
change in per-target increments.
Backports commit 42a268c241183877192c376d03bd9b6d527407c7 from qemu
The method by which we count the number of ops emitted
is going to change. Abstract that away into some inlines.
Backports commit fe700adb3db5b028b504423b946d4ee5200a8f2f from qemu.
Thus, use cpu_env as the parameter, not TCG_AREG0 directly.
Update all uses in the translators.
Backports commit e1ccc05444676b92c63708096e36582be27fbee1 from qemu
* arm64eb: arm64 big endian also using little endian instructions.
* arm64: using another example that depends on endians.
example:
1. store a word: 0x12345678
2. load a byte:
* little endian : 0x78
* big endian : 0x12
