2 Commits

Author	SHA1	Message	Date
Chris Jackson	113a06f7a5	{DebugInfo][LSR] Don't cache dbg.value that are already undef ... The SCEV-based salvaging method caches dbg.value information pre-LSR so that salvaging may be attempted post-LSR. If the dbg.value are already undef pre-LSR then a salvage attempt would be fruitless, so avoid caching them. Reviewed By: StephenTozer Differential Revision: https://reviews.llvm.org/D107448	2021-08-05 19:16:43 +01:00
Chris Jackson	21ee38e24f	[DebugInfo][LSR] Avoid crashes on large integer inputs ... SCEV-based salvaging in LSR translates SCEVs to DIExpressions. SCEVs may contain very large integers but the translation does not support integers greater than 64 bits. This patch adds checks to ensure conversions of these large integers is not attempted. A regression test is added to ensure no such translation is attempted. Reviewed by: StephenTozer PR: https://bugs.llvm.org/show_bug.cgi?id=51329 Differential Revision: https://reviews.llvm.org/D107438	2021-08-04 15:51:22 +01:00