[committed] hppa: Fix bootstrap on hppa-hpux

[committed] hppa: Fix bootstrap on hppa-hpux

[John David Anglin]

--
John David Anglin	dave.anglin@bell.net

Re: [committed] hppa: Fix bootstrap on hppa-hpux

[John David Anglin]

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Sorry, hit wrong button.

The attached patch fixes gcc bootstrap on hppa-hpux.  Revision r254585 changed the handling of
scaled-index addresses.  We weren't checking the base operand to ensure that the REG_POINTER
flag was set prior to load.  As a result, we accepted invalid base register operands.

The attached change fixes this problem.

Dave
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John David Anglin	dave.anglin@bell.net



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2017-12-03  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.c (pa_legitimate_address_p): For scaled indexing,
	require base operand is a REG_POINTER prior to reload on targets
	with non-equivalent space registers.

Index: config/pa/pa.c
===================================================================
--- config/pa/pa.c	(revision 254585)
+++ config/pa/pa.c	(working copy)
@@ -10544,9 +10544,16 @@
 
       if (!TARGET_DISABLE_INDEXING
 	  && GET_CODE (index) == MULT
-	  && MODE_OK_FOR_SCALED_INDEXING_P (mode)
+	  /* Only accept base operands with the REG_POINTER flag prior to
+	     reload on targets with non-equivalent space registers.  */
+	  && (TARGET_NO_SPACE_REGS
+	      || (base == XEXP (x, 1)
+		  && (reload_completed
+		      || (reload_in_progress && HARD_REGISTER_P (base))
+		      || REG_POINTER (base))))
 	  && REG_P (XEXP (index, 0))
 	  && GET_MODE (XEXP (index, 0)) == Pmode
+	  && MODE_OK_FOR_SCALED_INDEXING_P (mode)
 	  && (strict ? STRICT_REG_OK_FOR_INDEX_P (XEXP (index, 0))
 		     : REG_OK_FOR_INDEX_P (XEXP (index, 0)))
 	  && GET_CODE (XEXP (index, 1)) == CONST_INT