Orlando Cazalet-Hyams ddd95b15d1
[RemoveDIs] Handle DPValues in hoistCommonCodeFromSuccessors (#79476)
Hoist DPValues attached to each instruction being considered for hoisting if
they are identical in lock-step. This includes the final instructions which
are considered but not hoisted, because the corresponding dbg.values would
appear before those instruction and thus hoisted if identical.

Identical debug records hoisted:
llvm/test/Transforms/SimplifyCFG/hoist-dbgvalue.ll

Non-identical debug records not hoisted:
llvm/test/Transforms/SimplifyCFG/X86/pr39187-g.ll

Debug records attached to first not-hoisted instructions are hoisted:
llvm/test/Transforms/SimplifyCFG/hoist-dbgvalue-inlined.ll
2024-02-05 10:58:46 +00:00
..