From: Roger Sayle <roger@eyesopen.com>
Date: Mon, 12 Jun 2006 02:10:24 +0000 (+0000)
Subject: re PR target/27858 (ICE in spill_failure, at reload1.c:1911while bootstrapping 4... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4119019bd756f9c97cbb0a0133371cf0cdd7f436;p=gcc.git

re PR target/27858 (ICE in spill_failure, at reload1.c:1911while bootstrapping 4.2 on alpha)


	PR target/27858
	Revert incorrect fix for PR target/27158
	2006-05-08  Roger Sayle  <roger@eyesopen.com>
	* reload.c (find_reloads_toplev): Only return the simplified SUBREG
	of a reg_equiv_constant if the result is a legitimate constant.

From-SVN: r114559
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0e14efce4d7..41d440526b0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2006-06-11  Roger Sayle  <roger@eyesopen.com>
+
+	PR target/27858
+	Revert incorrect fix for PR target/27158
+	2006-05-08  Roger Sayle  <roger@eyesopen.com>
+	* reload.c (find_reloads_toplev): Only return the simplified SUBREG
+	of a reg_equiv_constant if the result is a legitimate constant.
+
 2006-06-11  Roger Sayle  <roger@eyesopen.com>
 
 	PR target/27158
diff --git a/gcc/reload.c b/gcc/reload.c
index 6ce18711fd0..616a73726a1 100644
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -4572,8 +4572,7 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type,
 	  && reg_renumber[regno] < 0
 	  && reg_equiv_constant[regno] != 0
 	  && (tem = gen_lowpart_common (GET_MODE (x),
-					reg_equiv_constant[regno])) != 0
-	  && LEGITIMATE_CONSTANT_P (tem))
+					reg_equiv_constant[regno])) != 0)
 	return tem;
 
       if (regno >= FIRST_PSEUDO_REGISTER
@@ -4584,8 +4583,7 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type,
 	    simplify_gen_subreg (GET_MODE (x), reg_equiv_constant[regno],
 				 GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x));
 	  gcc_assert (tem);
-	  if (LEGITIMATE_CONSTANT_P (tem))
-	    return tem;
+	  return tem;
 	}
 
       /* If the subreg contains a reg that will be converted to a mem,