52c6ece5f3
Rather than outright replacing parts of our existing peephole optimizations passes, this makes peepmatic an optional cargo feature that can be enabled. This allows us to take a conservative approach with enabling peepmatic everywhere, while also allowing us to get it in-tree and make it easier to collaborate on improving it quickly.
15 lines
257 B
Plaintext
15 lines
257 B
Plaintext
test compile
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set opt_level=speed_and_size
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target x86_64
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function u0:0(i8) -> i8 fast {
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block0(v0: i8):
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v1 = iconst.i8 0
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v2 = isub v1, v0
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; check: uextend.i32
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; nextln: iconst.i32
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; nextln: isub
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; nextln: ireduce.i8
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return v2
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}
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