[llvm-commits] [llvm] r48491 - in /llvm/trunk: lib/CodeGen/SelectionDAG/DAGCombiner.cpp test/CodeGen/X86/field-extract-use-trunc.ll

[Duncan Sands]

Hi Evan,

> Well... Actually it should return true. MVT::i1 is promoted to MVT::i8  
> so on x86 it really should be free.

some operations involving i1 are considered legal on x86, for example
an extending load from i1.  Maybe this has something to do with it.

Ciao,

Duncan.