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8279668: x86: AVX2 versions of vpxor should be asserted

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Reviewed-by: kvn, jiefu
This commit is contained in:
Aleksey Shipilev 2022-01-11 10:28:47 +00:00
parent 3121898c33
commit 2bbeae3f05
2 changed files with 15 additions and 3 deletions
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6
src/hotspot/cpu/x86/assembler_x86.cpp
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@ -7594,6 +7594,9 @@ void Assembler::pxor(XMMRegister dst, XMMRegister src) {
void Assembler::vpxor(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
assert(UseAVX > 0, "requires some form of AVX");
assert(vector_len == AVX_128bit ? VM_Version::supports_avx() :
vector_len == AVX_256bit ? VM_Version::supports_avx2() :
vector_len == AVX_512bit ? VM_Version::supports_evex() : 0, "");
InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ false, /* no_mask_reg */ true, /* uses_vl */ true);
int encode = vex_prefix_and_encode(dst->encoding(), nds->encoding(), src->encoding(), VEX_SIMD_66, VEX_OPCODE_0F, &attributes);
emit_int16((unsigned char)0xEF, (0xC0 | encode));
@ -7601,6 +7604,9 @@ void Assembler::vpxor(XMMRegister dst, XMMRegister nds, XMMRegister src, int vec
void Assembler::vpxor(XMMRegister dst, XMMRegister nds, Address src, int vector_len) {
assert(UseAVX > 0, "requires some form of AVX");
assert(vector_len == AVX_128bit ? VM_Version::supports_avx() :
vector_len == AVX_256bit ? VM_Version::supports_avx2() :
vector_len == AVX_512bit ? VM_Version::supports_evex() : 0, "");
InstructionMark im(this);
InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ false, /* no_mask_reg */ true, /* uses_vl */ true);
attributes.set_address_attributes(/* tuple_type */ EVEX_FV, /* input_size_in_bits */ EVEX_32bit);