[lldb][debugserver] Save and restore the SVE/SME register state (#134184) #10421
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…#134184) debugserver isn't saving and restoring the SVE/SME register state around inferior function calls. Making arbitrary function calls while in Streaming SVE mode is generally a poor idea because a NEON instruction can be hit and crash the expression execution, which is how I missed this, but they should be handled correctly if the user knows it is safe to do. Re-landing this change after fixing an incorrect behavior on systems without SME support. rdar://146886210 (cherry picked from commit f1c6612)
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@swift-ci test |
JDevlieghere
approved these changes
Apr 4, 2025
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debugserver isn't saving and restoring the SVE/SME register state around inferior function calls.
Making arbitrary function calls while in Streaming SVE mode is generally a poor idea because a NEON instruction can be hit and crash the expression execution, which is how I missed this, but they should be handled correctly if the user knows it is safe to do.
Re-landing this change after fixing an incorrect behavior on systems without SME support.
rdar://146886210
(cherry picked from commit f1c6612)