[glibc] benchtests: hypot benchmark

[glibc] benchtests: hypot benchmark

[Adhemerval Zanella]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f215dbbdf18893b08e0b00eb12d369e7cf4a946d

commit f215dbbdf18893b08e0b00eb12d369e7cf4a946d
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Mon Mar 11 17:01:11 2019 +0000

    benchtests: hypot benchmark
    
    Inputs are based on argument reductions from generic and powerpc
    implementation.
    
    	* benchtests/Makefile (bench-math): Add hypot.
    	* benchtests/hypot-inputs: New file.
    
    Reviewed-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>

Diff:
---
 ChangeLog               |  5 +++++
 benchtests/Makefile     |  2 +-
 benchtests/hypot-inputs | 16 ++++++++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 21daab7..d335dd1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-07-08  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+
+	* benchtests/Makefile (bench-math): Add hypot.
+	* benchtests/hypot-inputs: New file.
+
 2019-07-08  Vincent Chen  <vincentc@andestech.com>
 
 	* sysdeps/unix/sysv/linux/dl-vdso.h
diff --git a/benchtests/Makefile b/benchtests/Makefile
index ef400a8..2d49113 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -24,7 +24,7 @@ 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
+	      cosf isnan isinf isfinite hypot
 
 bench-pthread := pthread_once thread_create
 
diff --git a/benchtests/hypot-inputs b/benchtests/hypot-inputs
new file mode 100644
index 0000000..e987e5d
--- /dev/null
+++ b/benchtests/hypot-inputs
@@ -0,0 +1,16 @@
+## includes: math.h
+## args: double:double
+## ret: double
+
+## name: overflow
+0x3.ffffffffffffcp-1024, 0x8p-152
+## name: higher_two500
+0x1.000002027941dp+500,  0x1.0000000000001p+500
+## name: subnormal
+0x0.fffffffffffffp-1022, 0x0.fffffffffffffp-1022
+## name: less_two500
+0x1.fffffffffffffp-501,  0x1.fffffffffffffp-501
+
+## name: default
+3.0                   , 4.0
+5.0                   , 4.0