--- old/src/hotspot/cpu/x86/assembler_x86.cpp	2019-02-07 17:43:06.395095609 +0530
+++ new/src/hotspot/cpu/x86/assembler_x86.cpp	2019-02-07 17:43:06.207095605 +0530
@@ -7767,7 +7767,8 @@
 
 void Assembler::cmppd(XMMRegister dst, XMMRegister nds, XMMRegister src, int cop, int vector_len) {
   assert(VM_Version::supports_avx(), "");
-  assert(!VM_Version::supports_evex(), "");
+  assert(vector_len < 2, "");
+  assert((dst->encoding() < 16 && nds->encoding() < 16 && src->encoding() < 16) ,"XMM register should be 0-15");
   InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ true, /* no_mask_reg */ true, /* uses_vl */ true);
   int encode = simd_prefix_and_encode(dst, nds, src, VEX_SIMD_66, VEX_OPCODE_0F, &attributes);
   emit_int8((unsigned char)0xC2);
@@ -7775,9 +7776,44 @@
   emit_int8((unsigned char)(0xF & cop));
 }
 
+void Assembler::vmaxps(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
+  assert(VM_Version::supports_avx(), "");
+  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_NONE, VEX_OPCODE_0F, &attributes);
+  emit_int8(0x5F);
+  emit_int8((unsigned char)(0xC0 | encode));
+}
+
+void Assembler::vmaxpd(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
+  assert(VM_Version::supports_avx(), "");
+  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(), nds->encoding(), src->encoding(), VEX_SIMD_66, VEX_OPCODE_0F, &attributes);
+  emit_int8(0x5F);
+  emit_int8((unsigned char)(0xC0 | encode));
+}
+
+void Assembler::vminps(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
+  assert(VM_Version::supports_avx(), "");
+  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_NONE, VEX_OPCODE_0F, &attributes);
+  emit_int8(0x5D);
+  emit_int8((unsigned char)(0xC0 | encode));
+}
+
+void Assembler::vminpd(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
+  assert(VM_Version::supports_avx(), "");
+  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(), nds->encoding(), src->encoding(), VEX_SIMD_66, VEX_OPCODE_0F, &attributes);
+  emit_int8(0x5D);
+  emit_int8((unsigned char)(0xC0 | encode));
+}
+
 void Assembler::blendvpd(XMMRegister dst, XMMRegister nds, XMMRegister src1, XMMRegister src2, int vector_len) {
   assert(VM_Version::supports_avx(), "");
-  assert(!VM_Version::supports_evex(), "");
+  assert(vector_len < 2, "");
+  assert((dst->encoding() < 16 && nds->encoding() < 16 && src1->encoding() < 16 && src2->encoding() < 16) ,"XMM register should be 0-15");
   InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ true, /* no_mask_reg */ true, /* uses_vl */ true);
   int encode = vex_prefix_and_encode(dst->encoding(), nds->encoding(), src1->encoding(), VEX_SIMD_66, VEX_OPCODE_0F_3A, &attributes);
   emit_int8((unsigned char)0x4B);
@@ -7788,7 +7824,8 @@
 
 void Assembler::cmpps(XMMRegister dst, XMMRegister nds, XMMRegister src, int cop, int vector_len) {
   assert(VM_Version::supports_avx(), "");
-  assert(!VM_Version::supports_evex(), "");
+  assert(vector_len < 2, "");
+  assert((dst->encoding() < 16 && nds->encoding() < 16 && src->encoding() < 16) ,"XMM register should be 0-15");
   InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ true, /* no_mask_reg */ true, /* uses_vl */ true);
   int encode = simd_prefix_and_encode(dst, nds, src, VEX_SIMD_NONE, VEX_OPCODE_0F, &attributes);
   emit_int8((unsigned char)0xC2);
@@ -7798,7 +7835,8 @@
 
 void Assembler::blendvps(XMMRegister dst, XMMRegister nds, XMMRegister src1, XMMRegister src2, int vector_len) {
   assert(VM_Version::supports_avx(), "");
-  assert(!VM_Version::supports_evex(), "");
+  assert(vector_len < 2, "");
+  assert((dst->encoding() < 16 && nds->encoding() < 16 && src1->encoding() < 16 && src2->encoding() < 16) ,"XMM register should be 0-15");
   InstructionAttr attributes(vector_len, /* vex_w */ false, /* legacy_mode */ true, /* no_mask_reg */ true, /* uses_vl */ true);
   int encode = vex_prefix_and_encode(dst->encoding(), nds->encoding(), src1->encoding(), VEX_SIMD_66, VEX_OPCODE_0F_3A, &attributes);
   emit_int8((unsigned char)0x4A);