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Better code generation for conditional branches #1

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opened 2024-03-03 19:38:53 +01:00 by hgruniaux · 0 comments
hgruniaux commented 2024-03-03 19:38:53 +01:00 (Migrated from github.com)
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Non optimal code produced from fib.v:

  ...
  mov rdx, 2
  mov r10, [rbp - 24]
  cmp r10, rdx
  setl dl
  and rdx, 255
  cmp rdx, 0
  jz .L3

The three instructions before the jz can be removed.

Non optimal code produced from `fib.v`: ```asm ... mov rdx, 2 mov r10, [rbp - 24] cmp r10, rdx setl dl and rdx, 255 cmp rdx, 0 jz .L3 ``` The three instructions before the `jz` can be removed.
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