From: Bernd Schmidt <bernds@codesourcery.com>
Date: Mon, 21 May 2012 21:37:01 +0000 (+0000)
Subject: re PR rtl-optimization/53373 (ICE on valid code with -mavx)
X-Git-Tag: misc/gccgo-go1_1_2~2776
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1d2944a3fe5f08e0588d855e52f5ad14c8241c97;p=thirdparty%2Fgcc.git

re PR rtl-optimization/53373 (ICE on valid code with -mavx)

	PR rtl-optimization/53373
	* caller-save.c (save_call_clobbered_regs): Look into a possible
	PARALLEL manually rather than using single_set on a call insn.

From-SVN: r187745
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 798ed806f59c..7015fac28093 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-05-21  Bernd Schmidt  <bernds@codesourcery.com>
+
+	PR rtl-optimization/53373
+	* caller-save.c (save_call_clobbered_regs): Look into a possible
+	PARALLEL manually rather than using single_set on a call insn.
+
 2012-05-21  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/53436
diff --git a/gcc/caller-save.c b/gcc/caller-save.c
index c8f3b145946e..44131f93efd6 100644
--- a/gcc/caller-save.c
+++ b/gcc/caller-save.c
@@ -872,11 +872,13 @@ save_call_clobbered_regs (void)
 		  && HARD_REGISTER_P (cheap)
 		  && TEST_HARD_REG_BIT (call_used_reg_set, REGNO (cheap)))
 		{
-		  rtx call_set = single_set (insn);
-		  rtx dest = SET_DEST (call_set);
-		  rtx pat = gen_rtx_SET (VOIDmode, cheap,
-					 copy_rtx (dest));
-		  chain = insert_one_insn (chain, 0, -1, pat);
+		  rtx dest, newpat;
+		  rtx pat = PATTERN (insn);
+		  if (GET_CODE (pat) == PARALLEL)
+		    pat = XVECEXP (pat, 0, 0);
+		  dest = SET_DEST (pat);
+		  newpat = gen_rtx_SET (VOIDmode, cheap, copy_rtx (dest));
+		  chain = insert_one_insn (chain, 0, -1, newpat);
 		}
 	    }
           last = chain;