[PATCH] D69534: [X86] Lower frame references with large offsets

[David Greene via Phabricator via llvm-commits]

greened created this revision.
greened added reviewers: craig.topper, arsenm, kparzysz, pengfei.
Herald added subscribers: llvm-commits, hiraditya, wdng.
Herald added a project: LLVM.

Handle offsets > 32 bits by using the register scavenger to find a register to
hold the large offset and change the frame index reference to use SIB
addressing.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D69534

Files:
  llvm/lib/Target/X86/X86RegisterInfo.cpp
  llvm/lib/Target/X86/X86RegisterInfo.h
  llvm/test/CodeGen/X86/large-stack-offset.ll

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