8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64

Summary: Fix wrong calling convention in LIR_Assembler::emit_unwind_handler(), T_METADATA support in calling convention generator, C1 register allocator
Reviewed-by: twisti, jrose

3 files changed, 7 insertions, 7 deletions

diff --git a/src/share/vm/c1/c1_LIR.cpp b/src/share/vm/c1/c1_LIR.cpp
index f40d91333..2634f5f41 100644
--- a/src/share/vm/c1/c1_LIR.cpp
+++ b/src/share/vm/c1/c1_LIR.cpp
@@ -183,10 +183,10 @@ char LIR_OprDesc::type_char(BasicType t) {
     case T_LONG:
     case T_OBJECT:
     case T_ADDRESS:
-    case T_METADATA:
     case T_VOID:
       return ::type2char(t);
-
+    case T_METADATA:
+      return 'M';
     case T_ILLEGAL:
       return '?';
 
diff --git a/src/share/vm/c1/c1_LIRGenerator.cpp b/src/share/vm/c1/c1_LIRGenerator.cpp
index 44ad61f64..e3098911d 100644
--- a/src/share/vm/c1/c1_LIRGenerator.cpp
+++ b/src/share/vm/c1/c1_LIRGenerator.cpp
@@ -1175,7 +1175,7 @@ void LIRGenerator::do_Return(Return* x) {
   if (compilation()->env()->dtrace_method_probes()) {
     BasicTypeList signature;
     signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT));    // thread
-    signature.append(T_OBJECT); // Method*
+    signature.append(T_METADATA); // Method*
     LIR_OprList* args = new LIR_OprList();
     args->append(getThreadPointer());
     LIR_Opr meth = new_register(T_METADATA);
@@ -2720,7 +2720,7 @@ void LIRGenerator::do_Base(Base* x) {
   if (compilation()->env()->dtrace_method_probes()) {
     BasicTypeList signature;
     signature.append(LP64_ONLY(T_LONG) NOT_LP64(T_INT));    // thread
-    signature.append(T_OBJECT); // Method*
+    signature.append(T_METADATA); // Method*
     LIR_OprList* args = new LIR_OprList();
     args->append(getThreadPointer());
     LIR_Opr meth = new_register(T_METADATA);
@@ -3331,7 +3331,7 @@ void LIRGenerator::do_RuntimeCall(RuntimeCall* x) {
   BasicTypeList* signature = new BasicTypeList(x->number_of_arguments());
 
   if (x->pass_thread()) {
-    signature->append(T_ADDRESS);
+    signature->append(LP64_ONLY(T_LONG) NOT_LP64(T_INT));    // thread
     args->append(getThreadPointer());
   }
 
diff --git a/src/share/vm/c1/c1_LinearScan.cpp b/src/share/vm/c1/c1_LinearScan.cpp
index 65d4c60b6..b7c04dbe8 100644
--- a/src/share/vm/c1/c1_LinearScan.cpp
+++ b/src/share/vm/c1/c1_LinearScan.cpp
@@ -75,9 +75,9 @@
 
 // Map BasicType to spill size in 32-bit words, matching VMReg's notion of words
 #ifdef _LP64
-static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 0, 1, -1};
+static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 0, 2,  1, 2, 1, -1};
 #else
-static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 0, 1, -1};
+static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 0, 1, -1, 1, 1, -1};
 #endif