[PATCH] D30400: For Thumb1, lower ADDC/ADDE/SUBC/SUBE via the glueless ARMISD nodes, same as already done for ARM and Thumb2.

[A. Skrobov via Phabricator via llvm-commits]

tyomitch created this revision.
Herald added subscribers: rengolin, aemerson.

Unfortunately, due to the Thumb1 idiosyncrasy where the instructions
can be *either* flag-setting *or* conditional, this is not expressible
with TableGen patterns, so we have to go for the custom C++ lowering.


https://reviews.llvm.org/D30400

Files:
  lib/Target/ARM/ARMISelDAGToDAG.cpp
  lib/Target/ARM/ARMISelLowering.cpp
  lib/Target/ARM/ARMInstrThumb.td

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