[llvm] [RISCV] Mark subvector extracts from index 0 as cheap (PR #134101)

[Pengcheng Wang via llvm-commits]

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@@ -183,461 +183,452 @@ define {<8 x i64>, <8 x i64>, <8 x i64>, <8 x i64>, <8 x i64>, <8 x i64>} @load_
 ; RV32-NEXT:    addi sp, sp, -16
 ; RV32-NEXT:    .cfi_def_cfa_offset 16
 ; RV32-NEXT:    csrr a2, vlenb
-; RV32-NEXT:    li a3, 96
+; RV32-NEXT:    li a3, 100
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wangpc-pp wrote:

Non-blocking: more stack usage here.

https://github.com/llvm/llvm-project/pull/134101