[PATCH] D30052: [X86] Emit fewer instructions to allocate >16GB stack frames

[Reid Kleckner via Phabricator via llvm-commits]

rnk updated this revision to Diff 88909.
rnk added a comment.

- Account for 8 byte push SP adjustment
- Avoid two operand sub, it does the wrong thing here


https://reviews.llvm.org/D30052

Files:
  lib/Target/X86/X86FrameLowering.cpp
  test/CodeGen/X86/huge-stack-offset2.ll

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