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Mirror of https://github.com/RPCS3/llvm-mirror
cf51144c01
This adds `delegate` instruction and use it to fix unwind destination mismatches created by marker placement in CFGStackify. There are two kinds of unwind destination mismatches: - Mismatches caused by throwing instructions (here we call it "call unwind mismatches", even though `throw` and `rethrow` can also cause mismatches) - Mismatches caused by `catch`es, in case a foreign exception is not caught by the nearest `catch` and the next outer `catch` is not the catch it should unwind to. This kind of mismatches didn't exist in the previous version of the spec, because in the previous spec `catch` was effectively `catch_all`, catching all exceptions. This implements routines to fix the first kind of unwind mismatches, which we call "call unwind mismatches". The second mismatch (catch unwind mismatches) will be fixed in a later CL. This also reenables all previously disabled tests in cfg-stackify-eh.ll and updates FileCheck lines to match the new spec. Two tests were deleted because they specifically tested the way we fixed unwind mismatches before using `exnref`s and branches, which we don't do anymore. Reviewed By: tlively Differential Revision: https://reviews.llvm.org/D94048 |
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| llvm.spec.in | ||
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| RELEASE_TESTERS.TXT | ||
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