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<div>wrt <a href="https://github.com/mono/mono/commit/fb91fce5d339bb9ffe507588f5bc1d8d6f244d9b" class="OWAAutoLink" id="LPlnk3844" previewremoved="true">https://github.com/mono/mono/commit/fb91fce5d339bb9ffe507588f5bc1d8d6f244d9b</a><br>
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<div>This doesn't seem right to me.</div>
<div>Both of these should have the and 0xff.</div>
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<div>$ cat /s/1.c</div>
<div>unsigned char f1 (double i)</div>
<div>{</div>
<div> return (unsigned char)i;</div>
<div>}</div>
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<div>unsigned char f2 (double i)</div>
<div>{</div>
<div> return (unsigned char)(int)i;</div>
<div>}</div>
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<div>$ clang --version</div>
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<div>Apple LLVM version 9.0.0 (clang-900.0.39.2)</div>
<div>Target: x86_64-apple-darwin16.7.0</div>
<div>Thread model: posix</div>
<div>InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin</div>
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<div>$ clang -arch arm64 -O2 -S -c /s/1.c && more 1.s</div>
<div><span style="font-size: 12pt;"><br>
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<div><span style="font-size: 12pt;">_f1: </span><br>
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<div><span style="font-size: 12pt;"> fcvtzs w0, d0</span><br>
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<div> ret</div>
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<div><span style="font-size: 12pt;">_f2: </span></div>
<div><span style="font-size: 12pt;"> fcvtzs w8, d0</span><br>
</div>
<div> and w0, w8, #0xff</div>
<div> ret</div>
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