[all-commits] [llvm/llvm-project] 7afb51: [SelectionDAG][X86] Add SelectionDAG::getSignedCon...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7afb51e035709e7f2532452054a39fe968444504
      https://github.com/llvm/llvm-project/commit/7afb51e035709e7f2532452054a39fe968444504
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-08-16 (Fri, 16 Aug 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/SelectionDAG.h
    M llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp

  Log Message:
  -----------
  [SelectionDAG][X86] Add SelectionDAG::getSignedConstant and use it in a few places. (#104555)

PR #80309 proposes to have users of APInt's uint64_t
constructor opt-in to implicit truncation. Currently, that patch
requires SelectionDAG::getConstant to opt-in.

This patch adds getSignedConstant so we can start fixing some of the
cases that require implicit truncation.



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