From: mpf <mpf@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 10 Sep 2014 10:52:39 +0000 (+0000)
Subject: MIPS: Do not reload unallocated FP_REGS pseudos via GR_REGS
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66ced0bc763c7c9fad93fba1455b69ca8e7975d7;p=thirdparty%2Fgcc.git

MIPS: Do not reload unallocated FP_REGS pseudos via GR_REGS

gcc/

	* config/mips/mips.c (mips_secondary_reload_class): Handle
	regno < 0 case.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215120 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4f9d1cf5492f..154b9daa0a06 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-09-10  Matthew Fortune  <matthew.fortune@imgtec.com>
+
+	* config/mips/mips.c (mips_secondary_reload_class): Handle
+	regno < 0 case.
+
 2014-09-10  Robert Suchanek   <robert.suchanek@imgtec.com>
 
 	* lra-lives.c (process_bb_lives): Replace assignment with bitwise OR
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index 646bb4dc7ebd..d1d4defd8e51 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -12143,8 +12143,9 @@ mips_secondary_reload_class (enum reg_class rclass,
 
   if (reg_class_subset_p (rclass, FP_REGS))
     {
-      if (MEM_P (x)
-	  && (GET_MODE_SIZE (mode) == 4 || GET_MODE_SIZE (mode) == 8))
+      if (regno < 0
+	  || (MEM_P (x)
+	      && (GET_MODE_SIZE (mode) == 4 || GET_MODE_SIZE (mode) == 8)))
 	/* In this case we can use lwc1, swc1, ldc1 or sdc1.  We'll use
 	   pairs of lwc1s and swc1s if ldc1 and sdc1 are not supported.  */
 	return NO_REGS;