8157758: JDK9 does not compile on Linux with GCC 6.1 because left-shifting a negative number has undefined behavior

Replace shifts of -1 with shifts of ~0u.

Reviewed-by: kbarrett, mockner

Author: alexhenrie

hotspot/src/share/vm/code/dependencies.hpp

@@ -168,7 +168,7 @@ class Dependencies: public ResourceObj {
     LG2_TYPE_LIMIT = 4,  // assert(TYPE_LIMIT <= (1<<LG2_TYPE_LIMIT))
 
     // handy categorizations of dependency types:
-    all_types           = ((1 << TYPE_LIMIT) - 1) & ((-1) << FIRST_TYPE),
+    all_types           = ((1 << TYPE_LIMIT) - 1) & ((~0u) << FIRST_TYPE),
 
     non_klass_types     = (1 << call_site_target_value),
     klass_types         = all_types & ~non_klass_types,

hotspot/src/share/vm/oops/cpCache.hpp

@@ -193,7 +193,7 @@ class ConstantPoolCacheEntry VALUE_OBJ_CLASS_SPEC {
     field_index_mask           = right_n_bits(field_index_bits),
     parameter_size_bits        = 8,  // subset of field_index_mask, range is 0..255
     parameter_size_mask        = right_n_bits(parameter_size_bits),
-    option_bits_mask           = ~(((-1) << tos_state_shift) | (field_index_mask | parameter_size_mask))
+    option_bits_mask           = ~(((~0u) << tos_state_shift) | (field_index_mask | parameter_size_mask))
   };
 
   // specific bit definitions for the indices field: