* fold-const.c (fold_unary) <REAL_PART>: Test for availability of

	BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
	<IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
	* builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
	before canonicalizing sincos to cexpi.
	(fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121607 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ec8b633..a712429 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,14 @@
 2007-02-05  Roger Sayle  <roger@eyesopen.com>
 
+       * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
+       BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
+       <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
+       * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
+       before canonicalizing sincos to cexpi.
+       (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
+
+2007-02-05  Roger Sayle  <roger@eyesopen.com>
+
        * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
        Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
        (alpha_init_builtins): Use alpha_add_builtins to process tables.

diff --git a/gcc/builtins.c b/gcc/builtins.c
index b7ff782..8e9d9e4 100644 (file)
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -7474,6 +7474,8 @@ fold_builtin_sincos (tree arglist)
     return res;
 
   /* Canonicalize sincos to cexpi.  */
+  if (!TARGET_C99_FUNCTIONS)
+    return NULL_TREE;
   fn = mathfn_built_in (type, BUILT_IN_CEXPI);
   if (!fn)
     return NULL_TREE;
@@ -7507,6 +7509,8 @@ fold_builtin_cexp (tree arglist, tree type)
 
   /* In case we can figure out the real part of arg0 and it is constant zero
      fold to cexpi.  */
+  if (!TARGET_C99_FUNCTIONS)
+    return NULL_TREE;
   ifn = mathfn_built_in (rtype, BUILT_IN_CEXPI);
   if (!ifn)
     return NULL_TREE;

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index ee2c469..c147efa 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -7769,9 +7769,13 @@ fold_unary (enum tree_code code, tree type, tree op0)
              {
              CASE_FLT_FN (BUILT_IN_CEXPI):
                fn = mathfn_built_in (type, BUILT_IN_COS);
-               return build_function_call_expr (fn, TREE_OPERAND (arg0, 1));
+               if (fn)
+                 return build_function_call_expr (fn,
+                                                  TREE_OPERAND (arg0, 1));
+               break;
 
-             default:;
+             default:
+               break;
              }
        }
       return NULL_TREE;
@@ -7808,9 +7812,13 @@ fold_unary (enum tree_code code, tree type, tree op0)
              {
              CASE_FLT_FN (BUILT_IN_CEXPI):
                fn = mathfn_built_in (type, BUILT_IN_SIN);
-               return build_function_call_expr (fn, TREE_OPERAND (arg0, 1));
+               if (fn)
+                 return build_function_call_expr (fn,
+                                                  TREE_OPERAND (arg0, 1));
+               break;
 
-             default:;
+             default:
+               break;
              }
        }
       return NULL_TREE;