[PATCH] [DWARF] Fix a few corner cases in expression emission

[Adrian Prantl]

Oh you definitely should, especially if they are giving sloppy examples!

What I should have written is: The IR

  [machinereg no. 5] 4 DW_OP_plus

should become (in DWARF v5):

  DW_OP_regval_type 5 [type ofs] DW_OP_constu 4 DW_OP_plus DW_OP_stack_value

whereas the IR

  [machinereg no. 5] 4 DW_OP_plus DW_OP_deref

should become (in any DWARF version):

  DW_OP_breg 5

You are absolutely correct that the first expression isn't actually expressible in DWARF 4 and before.


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http://reviews.llvm.org/D10302

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