release/18.x: [SystemZ] Handle address clobbering in splitMove(). (#92105) #92221
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@uweigand What do you think about merging this PR to the release branch? |
JonPsson1
approved these changes
May 15, 2024
When expanding an L128 (which is used to reload i128) it is possible that the quadword destination register clobbers an address register. This patch adds an assertion against the case where both of the expanded parts clobber the address, and in the case where one of the expanded parts do so puts it last. Fixes llvm#91437 (cherry picked from commit d6ee7e8)
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@nikic (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix. When you are done, please add the release:note label to this PR |
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Backport d6ee7e8
Requested by: @nikic