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8239008: C2: Simplify Replicate support for sub-word types on x86

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Reviewed-by: kvn
This commit is contained in:
Vladimir Ivanov 2020-03-10 20:51:08 +03:00
parent 072cfd2e48
commit 1dcd3d2c50
2 changed files with 49 additions and 158 deletions
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6
src/hotspot/cpu/x86/assembler_x86.cpp
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@ -7160,7 +7160,7 @@ void Assembler::evbroadcasti64x2(XMMRegister dst, Address src, int vector_len) {
// duplicate single precision data from src into programmed locations in dest : requires AVX512VL
void Assembler::vbroadcastss(XMMRegister dst, XMMRegister src, int vector_len) {
assert(VM_Version::supports_avx(), "");
assert(VM_Version::supports_avx2(), "");
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(), 0, src->encoding(), VEX_SIMD_66, VEX_OPCODE_0F_38, &attributes);
emit_int8(0x18);
@ -7181,7 +7181,8 @@ void Assembler::vbroadcastss(XMMRegister dst, Address src, int vector_len) {
// duplicate double precision data from src into programmed locations in dest : requires AVX512VL
void Assembler::vbroadcastsd(XMMRegister dst, XMMRegister src, int vector_len) {
assert(VM_Version::supports_avx(), "");
assert(VM_Version::supports_avx2(), "");
assert(vector_len == AVX_256bit || vector_len == AVX_512bit, "");
InstructionAttr attributes(vector_len, /* vex_w */ VM_Version::supports_evex(), /* legacy_mode */ false, /* no_mask_reg */ true, /* uses_vl */ true);
attributes.set_rex_vex_w_reverted();
int encode = vex_prefix_and_encode(dst->encoding(), 0, src->encoding(), VEX_SIMD_66, VEX_OPCODE_0F_38, &attributes);
@ -7191,6 +7192,7 @@ void Assembler::vbroadcastsd(XMMRegister dst, XMMRegister src, int vector_len) {
void Assembler::vbroadcastsd(XMMRegister dst, Address src, int vector_len) {
assert(VM_Version::supports_avx(), "");
assert(vector_len == AVX_256bit || vector_len == AVX_512bit, "");
assert(dst != xnoreg, "sanity");
InstructionMark im(this);
InstructionAttr attributes(vector_len, /* vex_w */ VM_Version::supports_evex(), /* legacy_mode */ false, /* no_mask_reg */ true, /* uses_vl */ true);