[PATCH]: Handle pow10 like exp10 optab

["Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>]

When the exp2 and exp10 optab entries were added, we should have
handled pow10 like exp10.  The patch below fixes this omission.

I don't have access to an x86 box, so I tested the change by building
a cross-compiler to i686-unknown-linux-gnu and compiled (-S) the
testcase with and without the builtins.c hunk.  I visually verified
that pow10 gets a function call with a clean src tree and with my
patch it gets expanded inline just like exp10 does.

Ok for mainline?

		Thanks,
		--Kaveh


2004-03-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* builtins.c (expand_builtin_mathfn): Add pow10* to the
	existing exp10* case.
	(expand_builtin): Likewise.
	
testsuite:
	* gcc.dg/builtins-34.c: Also check pow10*.

diff -rup orig/egcc-CVS20040310/gcc/builtins.c egcc-CVS20040310/gcc/builtins.c
--- orig/egcc-CVS20040310/gcc/builtins.c	Wed Mar 10 20:02:07 2004
+++ egcc-CVS20040310/gcc/builtins.c	Thu Mar 11 19:59:44 2004
@@ -1632,6 +1632,9 @@ expand_builtin_mathfn (tree exp, rtx tar
     case BUILT_IN_EXP10:
     case BUILT_IN_EXP10F:
     case BUILT_IN_EXP10L:
+    case BUILT_IN_POW10:
+    case BUILT_IN_POW10F:
+    case BUILT_IN_POW10L:
       errno_set = true; builtin_optab = exp10_optab; break;
     case BUILT_IN_EXP2:
     case BUILT_IN_EXP2F:
@@ -5130,6 +5133,9 @@ expand_builtin (tree exp, rtx target, rt
     case BUILT_IN_LOG2:
     case BUILT_IN_LOG2F:
     case BUILT_IN_LOG2L:
+    case BUILT_IN_POW10:
+    case BUILT_IN_POW10F:
+    case BUILT_IN_POW10L:
     case BUILT_IN_TAN:
     case BUILT_IN_TANF:
     case BUILT_IN_TANL:
diff -rup orig/egcc-CVS20040310/gcc/testsuite/gcc.dg/builtins-34.c egcc-CVS20040310/gcc/testsuite/gcc.dg/builtins-34.c
--- orig/egcc-CVS20040310/gcc/testsuite/gcc.dg/builtins-34.c	Wed Mar 10 17:36:22 2004
+++ egcc-CVS20040310/gcc/testsuite/gcc.dg/builtins-34.c	Thu Mar 11 20:02:25 2004
@@ -1,7 +1,7 @@
 /* Copyright (C) 2004 Free Software Foundation.
 
-   Check that exp10, exp10f, exp10l, exp2, exp2f and exp2l
-   built-in functions compile.
+   Check that exp10, exp10f, exp10l, exp2, exp2f, exp2l, pow10, pow10f
+   and pow10l built-in functions compile.
 
    Written by Uros Bizjak, 13th February 2004.  */
 
@@ -10,10 +10,13 @@
 
 extern double exp10(double);
 extern double exp2(double);
+extern double pow10(double);
 extern float exp10f(float);
 extern float exp2f(float);
+extern float pow10f(float);
 extern long double exp10l(long double);
 extern long double exp2l(long double);
+extern long double pow10l(long double);
 
 
 double test1(double x)
@@ -26,6 +29,11 @@ double test2(double x)
   return exp2(x);
 }
 
+double test3(double x)
+{
+  return pow10(x);
+}
+
 float test1f(float x)
 {
   return exp10f(x);
@@ -36,6 +44,11 @@ float test2f(float x)
   return exp2f(x);
 }
 
+float test3f(float x)
+{
+  return pow10f(x);
+}
+
 long double test1l(long double x)
 {
   return exp10l(x);
@@ -44,5 +57,10 @@ long double test1l(long double x)
 long double test2l(long double x)
 {
   return exp2l(x);
+}
+
+long double test3l(long double x)
+{
+  return pow10l(x);
 }