[PATCH] D35014: [X86] PR32755 : Improvement in CodeGen instruction selection for LEAs.
Lama via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jul 6 01:26:47 PDT 2017
lsaba added inline comments.
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Comment at: lib/Target/X86/X86OptimizeLEAs.cpp:727
+ .addUse(LI2.getOperand(0).getReg()) // Base = Dst of LI2.
+ .addImm(Scale1-Scale2) // Scale = Diff b/w scales.
+ .addUse(LI1.getOperand(3).getReg()) // Index = Index of LI1.
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could we end up with an illegal scale here? (eg. scale1 = 4, scale2=1)
https://reviews.llvm.org/D35014
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