2004-02-11 Uros Bizjak <uros@kss-loka.si>

	* optabs.h (enum optab_index): Add new OTI_log10 and OTI_log2.
	(log10_optab, log2_optab): Define corresponding macros.
	* optabs.c (init_optabs): Initialize log10_optab and log2_optab.
	* genopinit.c (optabs): Implement log10_optab and log2_optab
	using log10?f2 and log2?f2 patterns.
	* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOG10{,F,L}
	using log10_optab, and BUILT_IN_LOG2{,F,L} using log2_optab.
	(expand_builtin): Expand BUILT_IN_LOG10{,F,L} and BUILT_IN_LOG2{,F,L}
	using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

	* config/i386/i386.md (log10sf2, log10df2, log10xf2, log2sf2,
	log2df2, log2xf2): New patterns to implement log10, log10f, log10l,
	log2, log2f and log2l built-ins as inline x87 intrinsics.

	* gcc.dg/builtins-33.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@77675 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 48 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/builtins-33.c b/gcc/testsuite/gcc.dg/builtins-33.c
new file mode 100644
index 00000000000..758978f0600
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/builtins-33.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 2004 Free Software Foundation.
+
+   Check that log10, log10f, log10l, log2, log2f and log2l
+   built-in functions compile.
+
+   Written by Uros Bizjak, 11th February 2004.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern double log10(double);
+extern double log2(double);
+extern float log10f(float);
+extern float log2f(float);
+extern long double log10l(long double);
+extern long double log2l(long double);
+
+
+double test1(double x)
+{
+  return log10(x);
+}
+
+double test2(double x)
+{
+  return log2(x);
+}
+
+float test1f(float x)
+{
+  return log10f(x);
+}
+
+float test2f(float x)
+{
+  return log2f(x);
+}
+
+long double test1l(long double x)
+{
+  return log10l(x);
+}
+
+long double test2l(long double x)
+{
+  return log2l(x);
+}
+