Add benchtests for roundeven and roundevenf.

This patch adds benchtests for the roundeven and roundevenf functions.
The inputs are copied from trunc-inputs.

benchtests/Makefile

@@ -23,8 +23,8 @@ subdir := benchtests
 include ../Makeconfig
 bench-math := acos acosh asin asinh atan atanh cos cosh exp exp2 log log2 \
 	      modf pow rint sin sincos sinh sqrt tan tanh fmin fmax fminf \
-	      fmaxf powf trunc truncf expf exp2f logf log2f sincosf sinf \
-	      cosf isnan isinf isfinite hypot logb logbf
+	      fmaxf powf trunc truncf roundeven roundevenf expf exp2f logf \
+	      log2f sincosf sinf cosf isnan isinf isfinite hypot logb logbf
 
 bench-pthread := pthread_once thread_create
 
@@ -88,6 +88,8 @@ CFLAGS-bench-fmax.c += -fno-builtin
 CFLAGS-bench-fmaxf.c += -fno-builtin
 CFLAGS-bench-trunc.c += -fno-builtin
 CFLAGS-bench-truncf.c += -fno-builtin
+CFLAGS-bench-roundeven.c += -fno-builtin
+CFLAGS-bench-roundevenf.c += -fno-builtin
 CFLAGS-bench-isnan.c += -fsignaling-nans
 CFLAGS-bench-isinf.c += -fsignaling-nans
 CFLAGS-bench-isfinite.c += -fsignaling-nans

benchtests/roundeven-inputs

@@ -0,0 +1,22 @@
+## args: double
+## ret: double
+## includes: math.h
+0.0
+-0.0
+0.001
+-0.001
+0.5
+-0.5
+0.999
+-0.999
+1.0
+-1.0
+1.001
+-1.001
+123.5
+-123.5
+12345.1
+-1000000.1
+1e15
+-1e30
+1e200

benchtests/roundevenf-inputs

@@ -0,0 +1,21 @@
+## args: float
+## ret: float
+## includes: math.h
+0.0f
+-0.0f
+0.001f
+-0.001f
+0.5f
+-0.5f
+0.999f
+-0.999f
+1.0f
+-1.0f
+1.001f
+-1.001f
+123.5f
+-123.5f
+12345.1f
+-1000000.5f
+1e15f
+-1e30f