[PATCH] D13005: [Debug] Look through bitcasts to find argument registers

[Oliver Stannard via llvm-commits]

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On targets where f32 is not legal, we have to look through a BITCAST SDNode to find the register that an argument is stored in when emitting debug info, or we will not be able to emit a DW_AT_location for it.

Repository:
  rL LLVM

http://reviews.llvm.org/D13005

Files:
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  test/DebugInfo/ARM/float-args.ll

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