Could you add a testcase to make sure zmmul will generate mul instruction?
Liao Shihua 於 2024年5月23日 週四 18:48 寫道：
> Missing boolean_expression TARGET_ZMMUL in riscv_rtx_costs() casuse
> different instructions when multiplying an integer with a constant.
> ( https://github.com/riscv-collab/riscv-g
Missing boolean_expression TARGET_ZMMUL in riscv_rtx_costs() casuse different
instructions when multiplying an integer with a constant.
( https://github.com/riscv-collab/riscv-gnu-toolchain/issues/1482 )
int foo(int *ib) {
*ib = *ib * 33938;
return 0;
}
rv64im:
lw a4,0(a1)
