[PATCH] D43181: [CodeGen] Initialize large arrays by copying from a global

[Ivan Kosarev via Phabricator via cfe-commits]

kosarev created this revision.
kosarev added a reviewer: rjmccall.
kosarev added a project: clang.
Herald added a subscriber: llvm-commits.

Currently, clang compiles explicit initializers for array elements into series of store instructions. For large arrays of built-in types this results in bloated output code and significant amount of time spent on the instruction selection phase. This patch fixes the issue by initializing such arrays with global constants that store the binary image of the initializer.


Repository:
  rL LLVM

https://reviews.llvm.org/D43181

Files:
  lib/CodeGen/CGExprAgg.cpp
  test/CodeGen/init.c

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