[PATCH] D43915: [NVPTX] Lower loads from global constants using ld.global.nc (aka LDG).

[Justin Lebar via Phabricator via llvm-commits]

jlebar created this revision.
jlebar added a reviewer: tra.
Herald added subscribers: hiraditya, sanjoy, jholewinski.

After https://reviews.llvm.org/D43914, loads from global variables in addrspace(1) happen with
ld.global.  But since they're constants, even better would be to use
ld.global.nc, aka ldg.


https://reviews.llvm.org/D43915

Files:
  llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
  llvm/test/CodeGen/NVPTX/read-global-variable-constant.ll

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