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added fusion support for rmx500

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@MichielDerhaeg MichielDerhaeg left a comment

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I get slightly worse performance on rmx500_perf using this patch as compared to using the rhx100 mtune. Do you know why? Can you look into it?

Comment on lines 11478 to +11481
explicitly disabled.
TODO Add arcv_rmx500 once it supports fusion. */
if ((riscv_microarchitecture == arcv_rhx100
|| riscv_microarchitecture == arcv_rmx500
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Suggested change
explicitly disabled.
TODO Add arcv_rmx500 once it supports fusion. */
if ((riscv_microarchitecture == arcv_rhx100
|| riscv_microarchitecture == arcv_rmx500
explicitly disabled. */
if ((riscv_microarchitecture == arcv_rhx100

It was decided that the mtune for rmx500 shouldn't imply the advanced fusions. They have to be explicitly turned on with the option.

(include "corev.md")
(include "xiangshan.md")
(include "arcv-rmx100.md")
;;(include "arcv-rmx500_nf.md")
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Leftover?

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3 participants