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config: add RVV_UNORDER option to control the unorder rvv insts #889

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config: add RVV_UNORDER option to control the unorder rvv insts #889

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5 changes: 5 additions & 0 deletions src/isa/riscv64/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -586,6 +586,11 @@ config RVV_AGNOSTIC
bool "Enable RVV agnostic policy"
default y

config RVV_UNORDER
depends on RVV
bool "Enable RVV unorder compute"
default y

config EBREAK_AS_TRAP
depends on !RV_DEBUG
bool "Treat ebreak same as nemu_trap"
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6 changes: 3 additions & 3 deletions src/isa/riscv64/instr/rvv/vcompute.h
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Expand Up @@ -971,10 +971,10 @@ def_EHelper(vfadd) {
}

def_EHelper(vfredusum) {
#ifdef CONFIG_DIFFTEST
FREDUCTION(FREDUSUM) // use ordered reduction
#else
#ifdef CONFIG_RVV_UNORDER
float_reduction_computing(s); // when NEMU is ref, use unordered reduction which is same as XiangShan
#else
FREDUCTION(FREDUSUM) // use ordered reduction
#endif
}

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