src/cpu/x86/vm/sharedRuntime_x86_32.cpp

@@ -115,13 +115,13 @@
 OopMap* RegisterSaver::save_live_registers(MacroAssembler* masm, int additional_frame_words,
                                            int* total_frame_words, bool verify_fpu, bool save_vectors) {
   int vect_words = 0;
 #ifdef COMPILER2
   if (save_vectors) {
-    assert(UseAVX > 0, "256bit vectors are supported only with AVX");
-    assert(MaxVectorSize == 32, "only 256bit vectors are supported now");
-    // Save upper half of YMM registes
+    assert(UseAVX > 0, "512bit vectors are supported only with EVEX");
+    assert(MaxVectorSize == 64, "only 512bit vectors are supported now");
+    // Save upper half of ZMM/YMM registers : TODO: add support for ZMM save
     vect_words = 8 * 16 / wordSize;
     additional_frame_words += vect_words;
   }
 #else
   assert(!save_vectors, "vectors are generated only by C2");

@@ -281,12 +281,13 @@
 void RegisterSaver::restore_live_registers(MacroAssembler* masm, bool restore_vectors) {
   // Recover XMM & FPU state
   int additional_frame_bytes = 0;
 #ifdef COMPILER2
   if (restore_vectors) {
-    assert(UseAVX > 0, "256bit vectors are supported only with AVX");
-    assert(MaxVectorSize == 32, "only 256bit vectors are supported now");
+    assert(UseAVX > 0, "512bit vectors are supported only with EVEX");
+    assert(MaxVectorSize == 64, "only 512bit vectors are supported now");
+    // TODO: add frame support for additional_frame_bytes = 256
     additional_frame_bytes = 128;
   }
 #else
   assert(!restore_vectors, "vectors are generated only by C2");
 #endif