Displaying 2 results from an estimated 2 matches for "fcompi".
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2012 Apr 04
4
[LLVMdev] Disabling x87 instructions for a sub-target
Hello there,
I recently started working on the LLVM backend for a target that doesn't support x87 instructions.
Currently, I am in the process of completely disabling some x87 instructions such as fcomi, fcompi,... for a specific sub-target. I also do not have SSE enabled for my sub-target, and llvm resorts to fcomi* instructions for FP compare instructions.
Is there a way to bypass the automatic optimization that generates the x87 instructions when SSE is disabled, and completely eliminate the code gene...
2012 Apr 04
0
[LLVMdev] Disabling x87 instructions for a sub-target
...ug.cgi?id=6679
On 04/04/2012 21:45, Murali, Sriram wrote:
> Hello there,
>
> I recently started working on the LLVM backend for a target that doesn’t
> support x87 instructions.
>
> Currently, I am in the process of completely disabling some x87
> instructions such as fcomi, fcompi,… for a specific sub-target. I also
> do not have SSE enabled for my sub-target, and llvm resorts to fcomi*
> instructions for FP compare instructions.
>
>
>
> Is there a way to bypass the automatic optimization that generates the
> x87 instructions when SSE is disabled, an...