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Commit 1ce2c997 authored by Andrey Turetskiy's avatar Andrey Turetskiy
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LEA code size optimization pass (Part 2): Remove redundant LEA instructions. 

Make x86 OptimizeLEAs pass remove LEA instruction if there is another LEA
(in the same basic block) which calculates address differing only be a
displacement. Works only for -Oz.

Differential Revision: http://reviews.llvm.org/D13295

llvm-svn: 257589
parent 253dbf54
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