[glibc] benchtests: Better libmvec integration

[Siddhesh Poyarekar <siddhesh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5b5b1012d579bfb38e11cea3767bec06554c0063

commit 5b5b1012d579bfb38e11cea3767bec06554c0063
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date:   Fri Apr 29 11:45:56 2022 +0530

    benchtests: Better libmvec integration
    
    Improve libmvec benchmark integration so that in future other
    architectures may be able to run their libmvec benchmarks as well.  This
    now allows libmvec benchmarks to be run with `make BENCHSET=bench-math`.
    
    Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

Diff:
---
 benchtests/Makefile         | 32 +++++++++++++++++---------------
 sysdeps/x86_64/fpu/Makefile |  4 ----
 2 files changed, 17 insertions(+), 19 deletions(-)

diff --git a/benchtests/Makefile b/benchtests/Makefile
index 7943d1c58a..149d87e22e 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -113,12 +113,6 @@ bench-string := \
   ffsll \
 # bench-string
 
-ifeq (${BENCHSET},)
-bench := $(bench-math) $(bench-pthread) $(bench-string)
-else
-bench := $(foreach B,$(filter bench-%,${BENCHSET}), ${${B}})
-endif
-
 # String function benchmarks.
 string-benchset := \
   bzero \
@@ -299,15 +293,6 @@ bench-extra-objs = json-lib.o
 extra-objs += $(bench-extra-objs)
 others-extras = $(bench-extra-objs)
 
-# NB: Use "=" instead of ":=" since sysdeps Makefiles may add more
-# benches.
-binaries-bench = $(addprefix $(objpfx)bench-,$(bench))
-extra-objs += $(addsuffix .o,$(addprefix bench-,$(bench)))
-binaries-benchset = $(addprefix $(objpfx)bench-,$(benchset))
-extra-objs += $(addsuffix .o,$(addprefix bench-,$(benchset)))
-binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
-extra-objs += $(addsuffix .o,$(addprefix bench-,$(bench-malloc)))
-
 # The default duration: 1 seconds.
 ifndef BENCH_DURATION
 BENCH_DURATION := 1
@@ -344,6 +329,23 @@ extra-objs += bench-timing-type.o
 
 include ../Rules
 
+bench-math += $(bench-libmvec)
+
+ifeq (${BENCHSET},)
+bench := $(bench-math) $(bench-pthread) $(bench-string)
+else
+bench := $(foreach B,$(filter bench-%,${BENCHSET}), ${${B}})
+endif
+
+# NB: Use "=" instead of ":=" since sysdeps Makefiles may add more
+# benches.
+binaries-bench = $(addprefix $(objpfx)bench-,$(bench))
+extra-objs += $(addsuffix .o,$(addprefix bench-,$(bench)))
+binaries-benchset = $(addprefix $(objpfx)bench-,$(benchset))
+extra-objs += $(addsuffix .o,$(addprefix bench-,$(benchset)))
+binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
+extra-objs += $(addsuffix .o,$(addprefix bench-,$(bench-malloc)))
+
 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
 # for all these modules.
 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c) \
diff --git a/sysdeps/x86_64/fpu/Makefile b/sysdeps/x86_64/fpu/Makefile
index 24af49e068..7233174ede 100644
--- a/sysdeps/x86_64/fpu/Makefile
+++ b/sysdeps/x86_64/fpu/Makefile
@@ -86,10 +86,6 @@ float-vlen16-arch-ext-cflags = -mavx512f
 
 bench-libmvec := $(bench-libmvec-double) $(bench-libmvec-float)
 
-ifeq (${BENCHSET},)
-bench += $(bench-libmvec)
-endif
-
 ifeq (${STATIC-BENCHTESTS},yes)
 libmvec-benchtests = $(common-objpfx)mathvec/libmvec.a $(common-objpfx)math/libm.a
 else