Chris Jackson 2e863e863d [DebugInfo][LoopStrengthReduction] SCEV-based salvaging for LSR ... This patch extends salvaging of debuginfo in the Loop Strength Reduction (LSR) pass by translating Scalar Evaluations (SCEV) into DIExpressions. The method is as follows: - Cache dbg.value intrinsics that are salvageable. - Obtain a loop Induction Variable (IV) from ScalarExpressionExpander or the loop header. - Translate the IV SCEV into an expression that recovers the current loop iteration count. Combine this with the dbg.value's location op SCEV to create a DIExpression that salvages the value. Review by: jmorse Differential Revision: https://reviews.llvm.org/D105207		2021-07-27 13:00:36 +01:00
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llvm	[DebugInfo][LoopStrengthReduction] SCEV-based salvaging for LSR	2021-07-27 13:00:36 +01:00
llvm-c	[IR] Rename comdat noduplicates to comdat nodeduplicate	2021-07-20 12:47:10 -07:00