• zhengxing.li's avatar
    X87: [turbofan] Add an operator to access the parent frame pointer. · 9727ab7e
    zhengxing.li authored
      port fd8fd05c (r34014)
    
      original commit message:
      This functionality is useful for stubs that need to walk the stack. The new
      machine operator, LoadParentFramePointer dosn't force the currently compiling
      method to have a frame in contrast to LoadFramePointer. Instead, it adapts
      accordingly when frame elision is possible, making efficient stack walks
      possible without incurring a performance penalty for small stubs that can
      benefit from frame elision.
    
    BUG=
    
    Review URL: https://codereview.chromium.org/1705673002
    
    Cr-Commit-Position: refs/heads/master@{#34064}
    9727ab7e
code-generator-x87.cc 74 KB