• chunyang.dai's avatar
    X87: Switch full-codegen from StackHandlers to handler table. · 1caa6179
    chunyang.dai authored
    port 38a719f9  (r27440)
    
    original commit message:
    
        This switches full-codegen to no longer push and pop StackHandler
        markers onto the operand stack, but relies on a range-based handler
        table instead. We only use StackHandlers in JSEntryStubs to mark the
        transition from C to JS code.
    
        Note that this makes deoptimization and OSR from within any try-block
        work out of the box, makes the non-exception paths faster and should
        overall be neutral on the memory footprint (pros).
    
        On the other hand it makes the exception paths slower and actually
        throwing and exception more expensive (cons).
    
    BUG=
    
    Review URL: https://codereview.chromium.org/1030283003
    
    Cr-Commit-Position: refs/heads/master@{#27478}
    1caa6179
macro-assembler-x87.h 42.8 KB