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96d3026420
This caused asserts in Chromium. See http://crbug.com/766261 > Summary: > This comes up in optimized debug info for C++ programs that pass and > return objects indirectly by address. In these programs, > llvm.dbg.declare survives optimization, which causes us to emit indirect > DBG_VALUE instructions. The fast register allocator knows to insert > DW_OP_deref when spilling indirect DBG_VALUE instructions, but the > LiveDebugVariables did not until this change. > > This fixes part of PR34513. I need to look into why this doesn't work at > -O0 and I'll send follow up patches to handle that. > > Reviewers: aprantl, dblaikie, probinson > > Subscribers: qcolombet, hiraditya, llvm-commits > > Differential Revision: https://reviews.llvm.org/D37911 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313589 91177308-0d34-0410-b5e6-96231b3b80d8