Benjamin Kramer 5337f20c15 Teach InstCombine to merge (icmp ult (X + CA), C1) | (icmp eq X, C2) into (icmp ult (X + CA), C1 + 1) if C2 + CA == C1.
InstCombine creates these so now we compile x == 23 || x == 24 || x == 25 to
  %x.off = add i32 %x, -23
  %1 = icmp ult i32 %x.off, 3
instead of
  %x.off = add i32 %x, -23
  %1 = icmp ult i32 %x.off, 2
  %cmp3 = icmp eq i32 %x, 25
  %ret2 = or i1 %1, %cmp3


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122248 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 16:18:51 +00:00
2010-12-20 09:47:08 +00:00
2010-12-20 13:30:37 +00:00
2010-12-12 21:42:01 +00:00
2010-12-17 17:22:50 +00:00

\Low Level Virtual Machine (LLVM)
================================

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LLVM backend for 6502
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