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| author | Richard Henderson <richard.henderson@linaro.org> | 2020-03-10 22:14:26 -0700 |
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| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-03-17 08:41:07 -0700 |
| commit | 312b426fea4d6dd322d7472c80010a8ba7a166d2 (patch) | |
| tree | 638325efa9778bcff81cf578f671bdc9690a6bc9 /scripts/qapi/doc.py | |
| parent | 40c67636f67c2a89745f2e698522fe917326a952 (diff) | |
| download | focaccia-qemu-312b426fea4d6dd322d7472c80010a8ba7a166d2.tar.gz focaccia-qemu-312b426fea4d6dd322d7472c80010a8ba7a166d2.zip | |
tcg/i386: Bound shift count expanding sari_vec
A given RISU testcase for SVE can produce tcg-op-vec.c:511: do_shifti: Assertion `i >= 0 && i < (8 << vece)' failed. because expand_vec_sari gave a shift count of 32 to a MO_32 vector shift. In 44f1441dbe1, we changed from direct expansion of vector opcodes to re-use of the tcg expanders. So while the comment correctly notes that the hw will handle such a shift count, we now have to take our own sanity checks into account. Which is easy in this particular case. Fixes: 44f1441dbe1 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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