[PATCH] D93976: [AVR] Optimize 16-bit comparison with constant

[Ben Shi via Phabricator via llvm-commits]

benshi001 added a comment.

for the C code like

  int a;
  if (a == 2333)

The generated AVR assembly is optimized from

  ldi     r18, 29
  ldi     r19, 9
  cp      r24, r18
  cpc     r25, r19

to

  ldi     r18, 9
  cpi     r24, 29
  cpc     r25, r18


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  https://reviews.llvm.org/D93976/new/

https://reviews.llvm.org/D93976