From: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Date: Fri, 21 Dec 2007 23:37:07 +0000 (+0000)
Subject: re PR target/34525 (ICE in extract_insn, at recog.c:1990 on hppa)
X-Git-Tag: releases/gcc-4.3.0~847
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7813231b94b7bc1f95e309be840f1025f29d1d4a;p=thirdparty%2Fgcc.git

re PR target/34525 (ICE in extract_insn, at recog.c:1990 on hppa)

	PR target/34525
	* pa.c (legitimize_pic_address): Emit insn to load function label
	forced to memory.

From-SVN: r131126
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6f257a978795..b9ea66f240d6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2007-12-21  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+	PR target/34525
+	* pa.c (legitimize_pic_address): Emit insn to load function label
+	forced to memory.
+
 2007-12-21  Andrew Pinski  <pinskia@gmail.com>
 	Rask Ingemann Lambertsen  <rask@sygehus.dk>
 
diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c
index 46ecbc1a1dfe..fce53fe62093 100644
--- a/gcc/config/pa/pa.c
+++ b/gcc/config/pa/pa.c
@@ -694,19 +694,37 @@ legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg)
       tmp_reg = ((reload_in_progress || reload_completed)
 		 ? reg : gen_reg_rtx (Pmode));
 
-      /* Force function labels into memory.  */
       if (function_label_operand (orig, mode))
-	orig = force_const_mem (mode, orig);
-
-      emit_move_insn (tmp_reg,
-		      gen_rtx_PLUS (word_mode, pic_offset_table_rtx,
-				    gen_rtx_HIGH (word_mode, orig)));
-      pic_ref
-	= gen_const_mem (Pmode,
-		         gen_rtx_LO_SUM (Pmode, tmp_reg,
-				         gen_rtx_UNSPEC (Pmode,
+	{
+	  /* Force function label into memory.  */
+	  orig = XEXP (force_const_mem (mode, orig), 0);
+	  /* Load plabel address from DLT.  */
+	  emit_move_insn (tmp_reg,
+			  gen_rtx_PLUS (word_mode, pic_offset_table_rtx,
+					gen_rtx_HIGH (word_mode, orig)));
+	  pic_ref
+	    = gen_const_mem (Pmode,
+			     gen_rtx_LO_SUM (Pmode, tmp_reg,
+					     gen_rtx_UNSPEC (Pmode,
 						         gen_rtvec (1, orig),
 						         UNSPEC_DLTIND14R)));
+	  emit_move_insn (reg, pic_ref);
+	  /* Now load address of function descriptor.  */
+	  pic_ref = gen_rtx_MEM (Pmode, reg);
+	}
+      else
+	{
+	  /* Load symbol reference from DLT.  */
+	  emit_move_insn (tmp_reg,
+			  gen_rtx_PLUS (word_mode, pic_offset_table_rtx,
+					gen_rtx_HIGH (word_mode, orig)));
+	  pic_ref
+	    = gen_const_mem (Pmode,
+			     gen_rtx_LO_SUM (Pmode, tmp_reg,
+					     gen_rtx_UNSPEC (Pmode,
+						         gen_rtvec (1, orig),
+						         UNSPEC_DLTIND14R)));
+	}
 
       current_function_uses_pic_offset_table = 1;
       mark_reg_pointer (reg, BITS_PER_UNIT);