[PATCH] D61184: [Salvage] Change salvage debug info implementation to use new DW_OP_LLVM_convert where needed

[Stephen Tozer via Phabricator via llvm-commits]

StephenTozer added a comment.

The regression issue is documented in the bug above: https://bugs.llvm.org/show_bug.cgi?id=41931
The main issue can be summarised briefly as "splitting a fragment DIExpression across multiple registers is currently broken", which is what I've submitted a fix for (see comments in SelectionDAGBuilder.cpp); the test for the new behaviour is in fragmented-args-multiple-regs.ll


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