[all-commits] [llvm/llvm-project] deaeb1: [RISCV] Indicate that RISCVMergeBaseOffsetOpt pres...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: deaeb16d88e92be644a157d499e9862cde4f22aa
      https://github.com/llvm/llvm-project/commit/deaeb16d88e92be644a157d499e9862cde4f22aa
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2021-08-03 (Tue, 03 Aug 2021)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVMergeBaseOffset.cpp

  Log Message:
  -----------
  [RISCV] Indicate that RISCVMergeBaseOffsetOpt preserves the CFG.

Return false from runOnFunction if nothing changed. Curiously
we already returned a bool from detectAndFoldOffset, but didn't
use it.

Fix a couple breaks after returns that I saw while auditing
detectAndFoldOffset.

Differential Revision: https://reviews.llvm.org/D107303