Changes between Version 28 and Version 29 of Internships/JanStolarek


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Timestamp:
Jul 15, 2013 9:35:44 AM (9 months ago)
Author:
jstolarek
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  • Internships/JanStolarek

    v28 v29  
    1919  - '''PLEASE make sure that you're carefully measuring compilation time when making changes to the code generator'''.  Expensive optimisations need to go in -O2 (at least). 
    2020 
    21 #7574 bug can be triggered with `./inplace/bin/ghc-stage2 -c -no-hs-main -fasm -O2 ./testsuite/tests/llvm/should_compile/T7571.cmm` 
    22  
    2321= Back-end notes = 
    2422== Some interesting tickets == 
     
    3230  * #5567 - LLVM: Improve alias analysis / performance [wiki:BackEndNotes#Heapstackchecks BackEndNotes] page has some discussion of this. 
    3331  * #7198 - New codegen more than doubles compile time of T3294 
     32  * #7574 - Register allocator chokes on certain branches with literals (bug can be triggered with `./inplace/bin/ghc-stage2 -c -no-hs-main -fasm -O2 ./testsuite/tests/llvm/should_compile/T7571.cmm`) 
    3433  * #8048 - Register spilling produces ineffecient/highly contending code 
    3534