From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 1 May 2002 08:27:55 +0000 (+0200)
Subject: PR target/6512, PR target/5628
X-Git-Tag: releases/gcc-3.3.0~5356
X-Git-Url: https://gcc.gnu.org/git/?a=commitdiff_plain;h=26aeede49668e5b7da29c670243b7ecca12c7ad4;p=gcc.git

PR target/6512, PR target/5628

	PR target/6512, PR target/5628
	* config/sparc/sparc.md (movdf_insn_v9only_novis): Don't allow >= %f32
	when memory is not aligned.
	(movdf_insn_v9only_vis): Likewise.
	* config/sparc/sparc.h (SECONDARY_INPUT_RELOAD_CLASS): Request a FP_REGS
	temporary for EXTRA_FP_REGS DFmode load from unaligned memory.
	(SECONDARY_OUTPUT_RELOAD_CLASS): Similarly.

From-SVN: r52995
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ee4572cde85d..39212f45eaef 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2002-05-01  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/6512, PR target/5628
+	* config/sparc/sparc.md (movdf_insn_v9only_novis): Don't allow >= %f32
+	when memory is not aligned.
+	(movdf_insn_v9only_vis): Likewise.
+	* config/sparc/sparc.h (SECONDARY_INPUT_RELOAD_CLASS): Request a FP_REGS
+	temporary for EXTRA_FP_REGS DFmode load from unaligned memory.
+	(SECONDARY_OUTPUT_RELOAD_CLASS): Similarly.
+
 2002-05-01  Aldy Hernandez  <aldyh@redhat.com>
 
         * gcc.dg/altivec-7.c: New.
diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h
index c86eb8ff21c9..d70f5428971d 100644
--- a/gcc/config/sparc/sparc.h
+++ b/gcc/config/sparc/sparc.h
@@ -1423,7 +1423,10 @@ extern const char leaf_reg_remap[];
 
    We need a temporary when loading/storing a HImode/QImode value
    between memory and the FPU registers.  This can happen when combine puts
-   a paradoxical subreg in a float/fix conversion insn.  */
+   a paradoxical subreg in a float/fix conversion insn.
+
+   We need a temporary when loading/storing a DFmode value between
+   unaligned memory and the upper FPU registers.  */
 
 #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, IN)		\
   ((FP_REG_CLASS_P (CLASS)					\
@@ -1432,28 +1435,36 @@ extern const char leaf_reg_remap[];
         || ((GET_CODE (IN) == REG || GET_CODE (IN) == SUBREG)	\
             && true_regnum (IN) == -1)))			\
    ? GENERAL_REGS						\
-   : (((TARGET_CM_MEDANY					\
-        && symbolic_operand ((IN), (MODE)))			\
-       || (TARGET_CM_EMBMEDANY					\
-           && text_segment_operand ((IN), (MODE))))		\
-      && !flag_pic)						\
-     ? GENERAL_REGS						\
-     : NO_REGS)
+   : ((CLASS) == EXTRA_FP_REGS && (MODE) == DFmode		\
+      && GET_CODE (IN) == MEM && TARGET_ARCH32			\
+      && ! mem_min_alignment ((IN), 8))				\
+     ? FP_REGS							\
+     : (((TARGET_CM_MEDANY					\
+	  && symbolic_operand ((IN), (MODE)))			\
+	 || (TARGET_CM_EMBMEDANY				\
+	     && text_segment_operand ((IN), (MODE))))		\
+	&& !flag_pic)						\
+       ? GENERAL_REGS						\
+       : NO_REGS)
 
 #define SECONDARY_OUTPUT_RELOAD_CLASS(CLASS, MODE, IN)		\
-   ((FP_REG_CLASS_P (CLASS)					\
+  ((FP_REG_CLASS_P (CLASS)					\
      && ((MODE) == HImode || (MODE) == QImode)			\
      && (GET_CODE (IN) == MEM					\
          || ((GET_CODE (IN) == REG || GET_CODE (IN) == SUBREG)	\
              && true_regnum (IN) == -1)))			\
-    ? GENERAL_REGS						\
-   : (((TARGET_CM_MEDANY					\
-        && symbolic_operand ((IN), (MODE)))			\
-       || (TARGET_CM_EMBMEDANY					\
-           && text_segment_operand ((IN), (MODE))))		\
-      && !flag_pic)						\
-     ? GENERAL_REGS						\
-     : NO_REGS)
+   ? GENERAL_REGS						\
+   : ((CLASS) == EXTRA_FP_REGS && (MODE) == DFmode		\
+      && GET_CODE (IN) == MEM && TARGET_ARCH32			\
+      && ! mem_min_alignment ((IN), 8))				\
+     ? FP_REGS							\
+     : (((TARGET_CM_MEDANY					\
+	  && symbolic_operand ((IN), (MODE)))			\
+	 || (TARGET_CM_EMBMEDANY				\
+	     && text_segment_operand ((IN), (MODE))))		\
+	&& !flag_pic)						\
+       ? GENERAL_REGS						\
+       : NO_REGS)
 
 /* On SPARC it is not possible to directly move data between 
    GENERAL_REGS and FP_REGS.  */
diff --git a/gcc/config/sparc/sparc.md b/gcc/config/sparc/sparc.md
index db12cfe479b0..8d246d009f36 100644
--- a/gcc/config/sparc/sparc.md
+++ b/gcc/config/sparc/sparc.md
@@ -3535,8 +3535,8 @@
 ;; We have available v9 double floats but not 64-bit
 ;; integer registers and no VIS.
 (define_insn "*movdf_insn_v9only_novis"
-  [(set (match_operand:DF 0 "nonimmediate_operand" "=e,e,T,W,U,T,e,*r,o")
-        (match_operand:DF 1 "input_operand"    "e,W#F,G,e,T,U,o#F,*roF,*rGe"))]
+  [(set (match_operand:DF 0 "nonimmediate_operand" "=e,e,T,W,U,T,f,*r,o")
+        (match_operand:DF 1 "input_operand"    "e,W#F,G,e,T,U,o#F,*roF,*rGf"))]
   "TARGET_FPU
    && TARGET_V9
    && ! TARGET_VIS
@@ -3561,8 +3561,8 @@
 ;; We have available v9 double floats but not 64-bit
 ;; integer registers but we have VIS.
 (define_insn "*movdf_insn_v9only_vis"
-  [(set (match_operand:DF 0 "nonimmediate_operand" "=e,e,e,T,W,U,T,e,*r,o")
-        (match_operand:DF 1 "input_operand" "G,e,W#F,G,e,T,U,o#F,*roGF,*rGe"))]
+  [(set (match_operand:DF 0 "nonimmediate_operand" "=e,e,e,T,W,U,T,f,*r,o")
+        (match_operand:DF 1 "input_operand" "G,e,W#F,G,e,T,U,o#F,*roGF,*rGf"))]
   "TARGET_FPU
    && TARGET_VIS
    && ! TARGET_ARCH64