[all-commits] [llvm/llvm-project] dbfc68: SpeculativeExecution: fixed ingoring free execution

[Daniil Fukalov via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: dbfc682e2ba2581e214fabb04ba1b555ff8b274a
      https://github.com/llvm/llvm-project/commit/dbfc682e2ba2581e214fabb04ba1b555ff8b274a
  Author: dfukalov <daniil.fukalov at amd.com>
  Date:   2020-02-20 (Thu, 20 Feb 2020)

  Changed paths:
    M llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp
    A llvm/test/CodeGen/AMDGPU/speculative-execution-freecasts.ll

  Log Message:
  -----------
  SpeculativeExecution: fixed ingoring free execution

Summary:
After updating cost model in AMDGPU target (47a5c36b37f0) the pass started to
ignore some BBs since they got all instructions estimated as free.

Reviewers: arsenm, chandlerc, nhaehnle

Reviewed By: nhaehnle

Subscribers: jvesely, wdng, nhaehnle, tpr, hiraditya, kerbowa, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74825