• msaboff@apple.com's avatar
    ARM64: Implement push/pop equivalents in LLInt · 6175888a
    msaboff@apple.com authored
    https://bugs.webkit.org/show_bug.cgi?id=124721
    
    Reviewed by Filip Pizlo.
    
    Added pushLRAndFP and popLRAndFP that push and pop the link register and frame pointer register.
    These ops emit code just like what the compiler emits in the prologue and epilogue.  Also changed
    pushCalleeSaves and popCalleeSaves to use the same store pair and load pair instructions to do
    the actually pushing and popping.  Finally changed the implementation of push and pop to raise
    an exception since we don't have (or need) a single register push or pop.
    
    * llint/LowLevelInterpreter64.asm:
    * offlineasm/arm64.rb:
    * offlineasm/instructions.rb:
    
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@159655 268f45cc-cd09-0410-ab3c-d52691b4dbfc
    6175888a