[all-commits] [llvm/llvm-project] 5edb40: [SelectionDAG] Disallow indirect "i" constraint

[Fangrui Song via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 5edb40c0220e80fc4cdb726d30d1d8b8e8580892
      https://github.com/llvm/llvm-project/commit/5edb40c0220e80fc4cdb726d30d1d8b8e8580892
  Author: Fangrui Song <maskray at google.com>
  Date:   2019-12-29 (Sun, 29 Dec 2019)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
    M llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp
    M llvm/lib/Target/Hexagon/HexagonISelDAGToDAG.cpp
    M llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
    M llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
    M llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
    M llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
    M llvm/lib/Target/Sparc/SparcISelDAGToDAG.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyISelDAGToDAG.cpp
    M llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
    M llvm/lib/Target/X86/X86ISelLowering.h

  Log Message:
  -----------
  [SelectionDAG] Disallow indirect "i" constraint

This allows us to delete InlineAsm::Constraint_i workarounds in
SelectionDAGISel::SelectInlineAsmMemoryOperand overrides and
TargetLowering::getInlineAsmMemConstraint overrides.

They were introduced to X86 in r237517 to prevent crashes for
constraints like "=*imr". They were later copied to other targets.