From: J"orn Rennecke <joern.rennecke@superh.com>
Date: Wed, 13 Aug 2003 19:20:16 +0000 (+0000)
Subject: sh.c (sh_get_pr_initial_val): Always wrap in unspec for TARGET_SH1.
X-Git-Tag: releases/gcc-3.4.0~4261
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dce20bbc110aac070f2ba36eb4b1656b66161ed9;p=thirdparty%2Fgcc.git

sh.c (sh_get_pr_initial_val): Always wrap in unspec for TARGET_SH1.

	* sh.c (sh_get_pr_initial_val): Always wrap in unspec for TARGET_SH1.
	* sh.md (load_ra): Change insn predicate to TARGET_SH1.

From-SVN: r70410
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a81302ad7181..a09b22821fa7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-08-13  J"orn Rennecke <joern.rennecke@superh.com>
+
+	* sh.c (sh_get_pr_initial_val): Always wrap in unspec for TARGET_SH1.
+	* sh.md (load_ra): Change insn predicate to TARGET_SH1.
+
 2003-08-13  Dale Johannesen  <dalej@apple.com>
 
 	* config/rs6000/rs6000.md (ctrsi, ctrdi):  Reenable
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index d1b203b943c5..15d1d1a57dd5 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -8865,9 +8865,13 @@ sh_get_pr_initial_val (void)
      then, we end in trouble if we didn't use the register in the same
      basic block before.  So call get_hard_reg_initial_val now and wrap it
      in an unspec if we might need to replace it.  */
+  /* ??? We also must do this for TARGET_SH1 in general, because otherwise
+     combine can put the pseudo returned by get_hard_reg_initial_val into
+     instructions that need a general purpose registers, which will fail to
+     be recognized when the pseudo becomes allocated to PR.  */
   val
     = get_hard_reg_initial_val (Pmode, TARGET_SHMEDIA ? PR_MEDIA_REG : PR_REG);
-  if (TARGET_SHCOMPACT && rtx_equal_function_value_matters)
+  if (TARGET_SH1)
     return gen_rtx_UNSPEC (SImode, gen_rtvec (1, val), UNSPEC_RA);
   return val;
 }
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index 2c8462ffc589..bd341a0b2df0 100644
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -3475,13 +3475,13 @@
 (define_insn_and_split "load_ra"
   [(set (match_operand:SI 0 "general_movdst_operand" "")
 	(unspec:SI [(match_operand 1 "register_operand" "")] UNSPEC_RA))]
-  "TARGET_SHCOMPACT"
+  "TARGET_SH1"
   "#"
   "&& ! rtx_equal_function_value_matters"
   [(set (match_dup 0) (match_dup 1))]
   "
 {
-  if (current_function_has_nonlocal_label)
+  if (TARGET_SHCOMPACT && current_function_has_nonlocal_label)
     operands[1] = gen_rtx_MEM (SImode, return_address_pointer_rtx);
 }")