Displaying 2 results from an estimated 2 matches for "get64bitargumentxmms".
2017 Nov 28
2
variadic functions on X86_64 should (conditionally) save XMM regs even if -no-implicit-float
...rated for variadic functions (in the absence of -no-implicit-float) includes a guard around the XMM spill code that checks for %al != 0.
Therefore I believe it would be "in the spirit" of -no-implicit-float to remove the NoImplicitFloatOps check from the following:
X86ISelLowering.cpp : get64BitArgumentXMMs()
if (isSoftFloat || NoImplicitFloatOps || !Subtarget.hasSSE1())
// Kernel mode asks for SSE to be disabled, so there are no XMM argument
// registers....
2019 Jun 04
2
variadic functions on X86_64 should (conditionally) save XMM regs even if -no-implicit-float
...functions (in the absence of -no-implicit-float) includes a guard around the XMM spill code that checks for %al != 0.
>
> Therefore I believe it would be "in the spirit" of -no-implicit-float to remove the NoImplicitFloatOps check from the following:
>
> X86ISelLowering.cpp : get64BitArgumentXMMs()
> if (isSoftFloat || NoImplicitFloatOps || !Subtarget.hasSSE1())
> // Kernel mode asks for SSE to be disabled, so there are no XMM argument
> // registers.
> return None;
>
> Does this seem like a reasonable idea?
>
> Thanks,
>
> Salim Nasser
> Wind R...