optabs.h (enum optab_index): Add new OTI_scalb.

	* optabs.h (enum optab_index): Add new OTI_scalb.
	(scalb_optab): Define corresponding macro.
	* optabs.c (init_optabs): Initialize scalb_optab.
	* genopinit.c (optabs): Implement scalb_optab using scalb?f3
	patterns.
	* builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
	BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
	(expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
	and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
	flag_unsafe_math_optimizations is set.

	* config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
	to implement scalbf, scalb and scalbl built-ins as inline x87
	intrinsics.

testsuite/ChangeLog

	* gcc.dg/builtins-34.c: Add scalb/scalbn/scalbln cases.

From-SVN: r122162

1 files changed, 54 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/builtins-34.c b/gcc/testsuite/gcc.dg/builtins-34.c
index f2625d5..ee8d751 100644
--- a/gcc/testsuite/gcc.dg/builtins-34.c
+++ b/gcc/testsuite/gcc.dg/builtins-34.c
@@ -13,16 +13,25 @@ extern double exp2(double);
 extern double pow10(double);
 extern double expm1(double);
 extern double ldexp(double, int);
+extern double scalb(double, double);
+extern double scalbn(double, int);
+extern double scalbln(double, long);
 extern float exp10f(float);
 extern float exp2f(float);
 extern float pow10f(float);
 extern float expm1f(float);
 extern float ldexpf(float, int);
+extern float scalbf(float, float);
+extern float scalbnf(float, int);
+extern float scalblnf(float, long);
 extern long double exp10l(long double);
 extern long double exp2l(long double);
 extern long double pow10l(long double);
 extern long double expm1l(long double);
 extern long double ldexpl(long double, int);
+extern long double scalbl(long double, long double);
+extern long double scalbnl(long double, int);
+extern long double scalblnl(long double, long);
 
 
 double test1(double x)
@@ -50,6 +59,21 @@ double test5(double x, int exp)
   return ldexp(x, exp);
 }
 
+double test6(double x, double exp)
+{
+  return scalb(x, exp);
+}
+
+double test7(double x, int exp)
+{
+  return scalbn(x, exp);
+}
+
+double test8(double x, long exp)
+{
+  return scalbln(x, exp);
+}
+
 float test1f(float x)
 {
   return exp10f(x);
@@ -75,6 +99,21 @@ float test5f(float x, int exp)
   return ldexpf(x, exp);
 }
 
+float test6f(float x, float exp)
+{
+  return scalbf(x, exp);
+}
+
+float test7f(float x, int exp)
+{
+  return scalbnf(x, exp);
+}
+
+float test8f(float x, long exp)
+{
+  return scalblnf(x, exp);
+}
+
 long double test1l(long double x)
 {
   return exp10l(x);
@@ -99,3 +138,18 @@ long double test5l(long double x, int exp)
 {
   return ldexpl(x, exp);
 }
+
+long double test6l(long double x, long double exp)
+{
+  return scalbl(x, exp);
+}
+
+long double test7l(long double x, int exp)
+{
+  return scalbnl(x, exp);
+}
+
+long double test8l(long double x, long exp)
+{
+  return scalblnl(x, exp);
+}