[llvm] [RISCV] Set CostPerUse to 1 only when optimizing for size (PR #201501)

[Pengcheng Wang via llvm-commits]

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@@ -1764,60 +1764,58 @@ define void @test_spill_call_nest() "interrupt"="qci-nest" {
 ; QCI-F-NEXT:    sw a0, 20(sp) # 4-byte Folded Spill
 ; QCI-F-NEXT:    lw a0, 80(s0)
 ; QCI-F-NEXT:    sw a0, 16(sp) # 4-byte Folded Spill
-; QCI-F-NEXT:    lw a0, 84(s0)
-; QCI-F-NEXT:    sw a0, 12(sp) # 4-byte Folded Spill
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wangpc-pp wrote:

Small improvement.

https://github.com/llvm/llvm-project/pull/201501