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mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-03-08 03:37:46 +00:00
David Majnemer fa49d7d6e4 InstCombine: Flip the order of two urem transforms
There are two transforms in visitUrem that conflict with each other.

*) One, if a divisor is a power of two, subtracts one from the divisor
   and turns it into a bitwise-and.
*) The other unwraps both operands if they are surrounded by zext
   instructions.

Flipping the order allows the subtraction to go beneath the sign
extension.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181668 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-12 00:07:05 +00:00
2013-05-09 12:32:36 +00:00

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

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LLVM backend for 6502
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