[PATCH] D13294: LEA code size optimization pass (Part 1): Remove redundant address recalculations

Alexey Samsonov via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 15 15:43:07 PST 2015


Please see https://llvm.org/bugs/show_bug.cgi?id=25843: this pass can be
very slow, exponentially blowing the compile time for large functions.

On Fri, Dec 4, 2015 at 2:56 AM, Alexey Bataev via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> This revision was automatically updated to reflect the committed changes.
> Closed by commit rL254712: LEA code size optimization pass (Part 1):
> Remove redundant address… (authored by ABataev).
>
> Changed prior to commit:
>   http://reviews.llvm.org/D13294?vs=41852&id=41855#toc
>
> Repository:
>   rL LLVM
>
> http://reviews.llvm.org/D13294
>
> Files:
>   llvm/trunk/lib/Target/X86/CMakeLists.txt
>   llvm/trunk/lib/Target/X86/X86.h
>   llvm/trunk/lib/Target/X86/X86OptimizeLEAs.cpp
>   llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
>   llvm/trunk/test/CodeGen/X86/lea-opt.ll
>
>
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>


-- 
Alexey Samsonov
vonosmas at gmail.com
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