From: Joseph Myers <joseph@codesourcery.com>
Date: Sat, 28 Jun 2008 19:40:03 +0000 (+0100)
Subject: predicates.md (easy_fp_constant): Reject TFmode constants for E500 double.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=624b157f704da414d40ed60003ecb21b5b2f380a;p=gcc.git

predicates.md (easy_fp_constant): Reject TFmode constants for E500 double.

	* config/rs6000/predicates.md (easy_fp_constant): Reject TFmode
	constants for E500 double.

testsuite:
	* gcc.c-torture/compile/20080628-1.c: New test.

From-SVN: r137232
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 909e4a69338..22c364936dd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-06-28  Joseph Myers  <joseph@codesourcery.com>
+
+	* config/rs6000/predicates.md (easy_fp_constant): Reject TFmode
+	constants for E500 double.
+
 2008-06-28  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
 	* doc/rtl.texi (const_vector): Document const_fixed as legitimate
diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md
index 98cbdc64f91..8e97c79acd2 100644
--- a/gcc/config/rs6000/predicates.md
+++ b/gcc/config/rs6000/predicates.md
@@ -213,6 +213,9 @@
   switch (mode)
     {
     case TFmode:
+      if (TARGET_E500_DOUBLE)
+	return 0;
+
       REAL_VALUE_FROM_CONST_DOUBLE (rv, op);
       REAL_VALUE_TO_TARGET_LONG_DOUBLE (rv, k);
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 39d0a71a401..b56104c3238 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2008-06-28  Joseph Myers  <joseph@codesourcery.com>
+
+	* gcc.c-torture/compile/20080628-1.c: New test.
+
 2008-06-28  Richard Guenther  <rguenther@suse.de>
 
 	* gcc.c-torture/execute/pta-field-1.c: Add return 0.
diff --git a/gcc/testsuite/gcc.c-torture/compile/20080628-1.c b/gcc/testsuite/gcc.c-torture/compile/20080628-1.c
new file mode 100644
index 00000000000..aca4ff82777
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20080628-1.c
@@ -0,0 +1,15 @@
+void f (long double, long double);
+
+struct s {
+  char c;
+  struct s *p;
+} *p;
+
+void
+g (void)
+{
+  long double ld;
+  p->p->c = 1;
+  ld = p->p->c;
+  f (ld, 1.0L);
+}