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8355980: RISC-V: remove vmclr_m before vmsXX and vmfXX

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Reviewed-by: dzhang, fyang
This commit is contained in:
Hamlin Li 2025-05-02 08:28:57 +00:00
parent d29700cc80
commit 811f117ce3
1 changed files with 6 additions and 2 deletions
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8
src/hotspot/cpu/riscv/c2_MacroAssembler_riscv.cpp
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@ -3110,7 +3110,9 @@ void C2_MacroAssembler::compare_integral_v(VectorRegister vd, VectorRegister src
assert(is_integral_type(bt), "unsupported element type");
assert(vm == Assembler::v0_t ? vd != v0 : true, "should be different registers");
vsetvli_helper(bt, vector_length);
vmclr_m(vd);
if (vm == Assembler::v0_t) {
vmclr_m(vd);
}
switch (cond) {
case BoolTest::eq: vmseq_vv(vd, src1, src2, vm); break;
case BoolTest::ne: vmsne_vv(vd, src1, src2, vm); break;
@ -3133,7 +3135,9 @@ void C2_MacroAssembler::compare_fp_v(VectorRegister vd, VectorRegister src1, Vec
assert(is_floating_point_type(bt), "unsupported element type");
assert(vm == Assembler::v0_t ? vd != v0 : true, "should be different registers");
vsetvli_helper(bt, vector_length);
vmclr_m(vd);
if (vm == Assembler::v0_t) {
vmclr_m(vd);
}
switch (cond) {
case BoolTest::eq: vmfeq_vv(vd, src1, src2, vm); break;
case BoolTest::ne: vmfne_vv(vd, src1, src2, vm); break;