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  • David Terei's avatar
    4384e146
    Track STG live register information for use in LLVM · 4384e146
    David Terei authored 
    We now carry around with CmmJump statements a list of
the STG registers that are live at that jump site.
This is used by the LLVM backend so it can avoid
unnesecarily passing around dead registers, improving
perfromance. This gives us the framework to finally
fix trac #4308.
    4384e146
    History
    Track STG live register information for use in LLVM
    David Terei authored 
    We now carry around with CmmJump statements a list of
the STG registers that are live at that jump site.
This is used by the LLVM backend so it can avoid
unnesecarily passing around dead registers, improving
perfromance. This gives us the framework to finally
fix trac #4308.
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