From: Richard Earnshaw <erich@gnu.org>
Date: Mon, 6 Jun 1994 13:14:03 +0000 (+0000)
Subject: (arm_reload_out_hi): Rewrite.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b5cc037f4b69e438ccd26b01f1c5e00d8d59599a;p=gcc.git

(arm_reload_out_hi): Rewrite.

(arm_reload_out_hi): Rewrite.  Add support for processors running in
big-endian mode.
(fp_immediate_constant): Fix typo in argument declaration.

From-SVN: r7449
---

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 996415cff30..9873845421c 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -794,17 +794,26 @@ arm_reload_out_hi (operands)
 {
   rtx base = find_replacement (&XEXP (operands[0], 0));
 
-  emit_insn (gen_rtx (SET, VOIDmode,
-                      gen_rtx (MEM, QImode, base),
-                      gen_rtx (SUBREG, QImode, operands[1], 0)));
-  emit_insn (gen_rtx (SET, VOIDmode, operands[2],
-                      gen_rtx (LSHIFTRT, SImode, 
-                               gen_rtx (SUBREG, SImode, operands[1], 0),
-                               GEN_INT (8))));
-  emit_insn (gen_rtx (SET, VOIDmode,
-                      gen_rtx (MEM, QImode,
-                               plus_constant (base, 1)),
-                      gen_rtx (SUBREG, QImode, operands[2], 0)));
+  if (BYTES_BIG_ENDIAN)
+    {
+      emit_insn (gen_movqi (gen_rtx (MEM, QImode, plus_constant (base, 1)),
+			    gen_rtx (SUBREG, QImode, operands[1], 0)));
+      emit_insn (gen_lshrsi3 (operands[2],
+			      gen_rtx (SUBREG, SImode, operands[1], 0),
+			      GEN_INT (8)));
+      emit_insn (gen_movqi (gen_rtx (MEM, QImode, base),
+			    gen_rtx (SUBREG, QImode, operands[2], 0)));
+    }
+  else
+    {
+      emit_insn (gen_movqi (gen_rtx (MEM, QImode, base),
+			    gen_rtx (SUBREG, QImode, operands[1], 0)));
+      emit_insn (gen_lshrsi3 (operands[2],
+			      gen_rtx (SUBREG, SImode, operands[1], 0),
+			      GEN_INT (8)));
+      emit_insn (gen_movqi (gen_rtx (MEM, QImode, plus_constant (base, 1)),
+			    gen_rtx (SUBREG, QImode, operands[2], 0)));
+    }
 }
 
 /* Check to see if a branch is forwards or backwards.  Return TRUE if it
@@ -845,7 +854,7 @@ arm_insn_not_targeted (insn)
    when cross compiling. */
 char *
 fp_immediate_constant (x)
-     rtx (x);
+     rtx x;
 {
   REAL_VALUE_TYPE r;
   int i;