diff -r d7e1e002b496 -r c4567d28f31f src/cpu/ppc/vm/stubGenerator_ppc.cpp
--- a/src/cpu/ppc/vm/stubGenerator_ppc.cpp	Mon Jun 17 17:20:10 2019 +0100
+++ b/src/cpu/ppc/vm/stubGenerator_ppc.cpp	Tue Jun 18 09:33:34 2019 -0400
@@ -2652,6 +2652,28 @@
      return start;
   }
 
+  address generate_sha256_implCompress(bool multi_block, const char *name) {
+    assert(UseSHA, "need SHA instructions");
+    StubCodeMark mark(this, "StubRoutines", name);
+    address start = __ function_entry();
+
+    __ sha256 (multi_block);
+
+    __ blr();
+    return start;
+  }
+
+  address generate_sha512_implCompress(bool multi_block, const char *name) {
+    assert(UseSHA, "need SHA instructions");
+    StubCodeMark mark(this, "StubRoutines", name);
+    address start = __ function_entry();
+
+    __ sha512 (multi_block);
+
+    __ blr();
+    return start;
+  }
+
   void generate_arraycopy_stubs() {
     // Note: the disjoint stubs must be generated first, some of
     // the conjoint stubs use them.
@@ -2881,6 +2903,15 @@
       StubRoutines::_montgomerySquare
         = CAST_FROM_FN_PTR(address, SharedRuntime::montgomery_square);
     }
+
+    if (UseSHA256Intrinsics) {
+      StubRoutines::_sha256_implCompress   = generate_sha256_implCompress(false, "sha256_implCompress");
+      StubRoutines::_sha256_implCompressMB = generate_sha256_implCompress(true,  "sha256_implCompressMB");
+    }
+    if (UseSHA512Intrinsics) {
+      StubRoutines::_sha512_implCompress   = generate_sha512_implCompress(false, "sha512_implCompress");
+      StubRoutines::_sha512_implCompressMB = generate_sha512_implCompress(true, "sha512_implCompressMB");
+    }
   }
 
  public: