Remove unnecessary changes

Author: rnkovacs

make/autoconf/flags-ldflags.m4

@@ -185,14 +185,17 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_CPU_DEP],
       $1_CPU_LDFLAGS_JVM_ONLY="-xarch=sparc"
     fi
 
-  elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    if test "x${OPENJDK_$1_CPU_BITS}" = "x32"; then
-      $1_CPU_EXECUTABLE_LDFLAGS="-stack:327680"
-    elif test "x${OPENJDK_$1_CPU_BITS}" = "x64"; then
-      $1_CPU_EXECUTABLE_LDFLAGS="-stack:1048576"
-    fi
+ elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
     if test "x${OPENJDK_$1_CPU}" = "xx86"; then
       $1_CPU_LDFLAGS="-safeseh"
+      # NOTE: Old build added -machine. Probably not needed.
+      $1_CPU_LDFLAGS_JVM_ONLY="-machine:I386"
+      $1_CPU_EXECUTABLE_LDFLAGS="-stack:327680"
+    elif test "x${OPENJDK_$1_CPU}" = "xaarch64"; then
+      $1_CPU_EXECUTABLE_LDFLAGS="-stack:1048576"
+    else
+      $1_CPU_LDFLAGS_JVM_ONLY="-machine:AMD64"
+      $1_CPU_EXECUTABLE_LDFLAGS="-stack:1048576"
     fi
   fi
 

src/hotspot/cpu/aarch64/aarch64.ad

@@ -5433,7 +5433,7 @@ pipeline %{
 attributes %{
   // ARM instructions are of fixed length
   fixed_size_instructions;        // Fixed size instructions TODO does
-  max_instructions_per_bundle = 4;   // A53 = 2, A57 = 4
+  max_instructions_per_bundle = 2;   // A53 = 2, A57 = 4
   // ARM instructions come in 32-bit word units
   instruction_unit_size = 4;         // An instruction is 4 bytes long
   instruction_fetch_unit_size = 64;  // The processor fetches one line