From: Richard Kenner <kenner@gcc.gnu.org>
Date: Thu, 29 Oct 1992 22:30:41 +0000 (-0500)
Subject: (output_constant_pool): Labels can be deleted by being turned into
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7b2b3f1f705c1ea27e9b2ccee7e5f369a0f32b44;p=gcc.git

(output_constant_pool): Labels can be deleted by being turned into
NOTEs, not just have INSN_DELETED_P.

From-SVN: r2653
---

diff --git a/gcc/varasm.c b/gcc/varasm.c
index e5d757cde4d..0df6d01a3a0 100644
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -2494,11 +2494,15 @@ output_constant_pool (fnname, fndecl)
       /* See if X is a LABEL_REF (or a CONST referring to a LABEL_REF)
 	 whose CODE_LABEL has been deleted.  This can occur if a jump table
 	 is eliminated by optimization.  If so, write a constant of zero
-	 instead.  */
-      if ((GET_CODE (x) == LABEL_REF && INSN_DELETED_P (XEXP (x, 0)))
+	 instead.  Note that this can also happen by turning the
+	 CODE_LABEL into a NOTE.  */
+      if (((GET_CODE (x) == LABEL_REF
+	    && (INSN_DELETED_P (XEXP (x, 0))
+		|| GET_CODE (XEXP (x, 0)) == NOTE)))
 	  || (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS
 	      && GET_CODE (XEXP (XEXP (x, 0), 0)) == LABEL_REF
-	      && INSN_DELETED_P (XEXP (XEXP (XEXP (x, 0), 0), 0))))
+	      && (INSN_DELETED_P (XEXP (XEXP (XEXP (x, 0), 0), 0))
+		  || GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 0)) == NOTE)))
 	x = const0_rtx;
 
       /* First switch to correct section.  */