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| author | Richard Henderson <richard.henderson@linaro.org> | 2025-08-05 15:21:44 +1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2025-09-04 09:49:30 +0200 |
| commit | cb2540979264c8d3984e26c5dd90a840e47ec5dd (patch) | |
| tree | fef48da5efa7cc3b5450a848ded462271ff20fd4 /scripts/userfaultfd-wrlat.py | |
| parent | 6c76a1f687cd509d26dae44ea39bf396b251fe0e (diff) | |
| download | focaccia-qemu-cb2540979264c8d3984e26c5dd90a840e47ec5dd.tar.gz focaccia-qemu-cb2540979264c8d3984e26c5dd90a840e47ec5dd.zip | |
tcg/i386: Use vgf2p8affineqb for MO_8 vector shifts
A constant matrix can describe the movement of the 8 bits, so these shifts can be performed with one instruction. Logic courtesy of Andi Kleen <ak@linux.intel.com>: https://gcc.gnu.org/pipermail/gcc-patches/2025-August/691624.html Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'scripts/userfaultfd-wrlat.py')
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