From a3d87e92eb015631e52c1408798ae4cf29d4703c Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 9 Nov 2001 15:30:33 +0100
Subject: [PATCH] sparc.md (movdf): Avoid calling validize_mem during or after
 reload.

	* config/sparc/sparc.md (movdf): Avoid calling validize_mem during
	or after reload.

	* gcc.c-torture/compile/20011109-1.c: New test.

From-SVN: r46880
---
 gcc/ChangeLog                                 |  5 ++
 gcc/config/sparc/sparc.md                     |  5 ++
 gcc/testsuite/ChangeLog                       |  4 ++
 .../gcc.c-torture/compile/20011109-1.c        | 51 +++++++++++++++++++
 4 files changed, 65 insertions(+)
 create mode 100644 gcc/testsuite/gcc.c-torture/compile/20011109-1.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5cce4ad4db1..add0d829e3f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-11-09  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/sparc/sparc.md (movdf): Avoid calling validize_mem during
+	or after reload.
+
 2001-11-09  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>
 
 	* doc/install.texi2html: Use $MAKEINFO --no-split.
diff --git a/gcc/config/sparc/sparc.md b/gcc/config/sparc/sparc.md
index 9c35dcc8202..dad74dd4b1d 100644
--- a/gcc/config/sparc/sparc.md
+++ b/gcc/config/sparc/sparc.md
@@ -3134,6 +3134,11 @@
 	  && fp_zero_operand (operands[1], DFmode))
 	goto movdf_is_ok;
 
+      /* We are able to build any DF constant in integer registers.  */
+      if (REGNO (operands[0]) < 32
+	  && (reload_completed || reload_in_progress))
+	goto movdf_is_ok;
+
       operands[1] = validize_mem (force_const_mem (GET_MODE (operands[0]),
                                                    operands[1]));
     }
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index dc44d389f93..6d9c0f07480 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2001-11-09  Jakub Jelinek  <jakub@redhat.com>
+
+	* gcc.c-torture/compile/20011109-1.c: New test.
+
 2001-11-08  Geoffrey Keating  <geoffk@redhat.com>
 
 	* g++.old-deja/g++.bugs/900227_01.C: Change stormy16 to xstormy16.
diff --git a/gcc/testsuite/gcc.c-torture/compile/20011109-1.c b/gcc/testsuite/gcc.c-torture/compile/20011109-1.c
new file mode 100644
index 00000000000..f1987a74bf2
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20011109-1.c
@@ -0,0 +1,51 @@
+typedef struct { short x[4]; } S;
+typedef struct { unsigned int a, b, c; S *d; } T;
+
+S *(*foo) (T *, int, int, int, int);
+unsigned short *(*bar)(const T *);
+unsigned short baz(T *,const int);
+
+T *die (void)
+{
+  typedef struct { unsigned int a, b, e; double f, g; } U;
+
+  char h[8], i[2053], j[2053];
+  double k, l, m;
+  U n;
+  T *o;
+  unsigned short p;
+  int q, r;
+  long s;
+  unsigned short *t;
+  S *u;
+  unsigned char *v, *w;
+  unsigned int x;
+
+  o = 0;
+  for (x = 0; x < n.e; x++)
+    {
+      l = 1.0;
+      if (n.g - n.f <= 1.0)
+	l = ((1 << o->c) - 1) / (n.g - n.f);
+      v = w;
+      for (r = o->b - 1; r >= 0; r--)
+	{
+	  u = foo (o, 0, r, o->a, 1);
+	  if (!u)
+	    break;
+	  t = bar (o);
+	  for (q = 0; q < (int) o->a; q++)
+	    {
+	      h[0] = *v;
+	      s = *v++;
+	      k = (double) s;
+	      m = l*k;
+	      p = m < 0 ? 0 : m > (1 << o->c) - 1 ? (1 << o->c) - 1 : m + 0.5;
+	      p = baz (o,p);
+	      t[q] = p;
+	      *u++ = o->d[p];
+	    }
+	}
+    }
+  return o;
+}