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In the x86_64 System V ABI, fcd doesn't know that rax can be used as an input register #45

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fay59 opened this issue Mar 22, 2017 · 0 comments
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In the x86_64 System V ABI, fcd doesn't know that rax can be used as an input register #45

fay59 opened this issue Mar 22, 2017 · 0 comments
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fay59 commented Mar 22, 2017

In the x86_64 System V ABI, the rax register is used to pass in the number of vector registers that contain parameters. Fcd doesn't know this and proliferates undef values when that register is read before being set.
@fay59 fay59 added the bug label Mar 22, 2017
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