rs6000: Fix infinite loop building ghostscript and icu [PR93658]

Previous push didn't get the ChangeLog entries or the actual fix.
Push those now.

gcc/
	PR target/93658
	* config/rs6000/rs6000.c (rs6000_legitimate_address_p): Handle VSX
	vector modes.

gcc/testsuite/
	PR target/93658
	* gcc.target/powerpc/pr93658.c: New test.

gcc/ChangeLog

+2020-02-20  Peter Bergner  <bergner@linux.ibm.com>
+
+	PR target/93658
+	* config/rs6000/rs6000.c (rs6000_legitimate_address_p): Handle VSX
+	vector modes.
+
 2020-02-20  Martin Liska  <mliska@suse.cz>
 
 	PR translation/93831

gcc/config/rs6000/rs6000.c

@@ -8808,7 +8808,7 @@ rs6000_legitimate_address_p (machine_mode mode, rtx x, bool reg_ok_strict)
   bool quad_offset_p = mode_supports_dq_form (mode);
 
   /* If this is an unaligned stvx/ldvx type address, discard the outer AND.  */
-  if (VECTOR_MEM_ALTIVEC_P (mode)
+  if (VECTOR_MEM_ALTIVEC_OR_VSX_P (mode)
       && GET_CODE (x) == AND
       && CONST_INT_P (XEXP (x, 1))
       && INTVAL (XEXP (x, 1)) == -16)

gcc/testsuite/ChangeLog

+2020-02-20  Peter Bergner  <bergner@linux.ibm.com>
+
+	PR target/93658
+	* gcc.target/powerpc/pr93658.c: New test.
+
 2020-02-20  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR fortran/93825