Previously, did not consider i386 subtargets which led to a crash in legalization stage.
This is required before adding support for X86TESTM and X86TESTNM
for also eliminating zeroing upper bits redundant instructions.
uriel.k on Oct 9 2017, 8:20 AM.Authored by
Changed function to be DAG.getIntPtrConstant(0, dl) instead.
Test case is not possible right now as it crashes only after another patch that will add TESTM to