[llvm-commits] [llvm] r141569 - in /llvm/trunk: lib/CodeGen/MachineLICM.cpp test/CodeGen/ARM/lsr-unfolded-offset.ll test/CodeGen/X86/licm-dominance.ll test/CodeGen/X86/licm-nested.ll

[Devang Patel]

On Oct 10, 2011, at 1:38 PM, Evan Cheng wrote:

> Also note, the fix as it is, has performance impact. We do want to speculate when the instructions are cheap and register pressure is low.


BTW, If I put the check in IsLICMCandidate() as you suggested earlier then also we'll skip hoisting for cheap instructions when register pressure is low. 

Stay tuned, I'll update the patch.
-
Devang
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