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-rw-r--r--benchtests/Makefile4
-rw-r--r--benchtests/sprintf-inputs10
-rw-r--r--benchtests/sprintf-source.c6
3 files changed, 19 insertions, 1 deletions
diff --git a/benchtests/Makefile b/benchtests/Makefile
index cb7a97ee75..8e615e50d6 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -48,7 +48,9 @@ include ../gen-locales.mk
 
 stdlib-bench := strtod
 
-benchset := $(string-bench-all) $(stdlib-bench)
+stdio-common-bench := sprintf
+
+benchset := $(string-bench-all) $(stdlib-bench) $(stdio-common-bench)
 
 CFLAGS-bench-ffs.c += -fno-builtin
 CFLAGS-bench-ffsll.c += -fno-builtin
diff --git a/benchtests/sprintf-inputs b/benchtests/sprintf-inputs
new file mode 100644
index 0000000000..9a7710d31f
--- /dev/null
+++ b/benchtests/sprintf-inputs
@@ -0,0 +1,10 @@
+## args: char *:const char *:int:char:char:char:char:char:const char *:float:unsigned int
+## ret: int
+## includes: stdio.h
+## include-sources: sprintf-source.c
+## name: positional
+# Test positional arguments:
+buf, FORMAT1, 1001, '1', '2', '3', '4', '5', "string", 1.5, 0x1234
+## name: non-positional
+# Test non-positional arguments:
+buf, FORMAT2, 1001, '1', '2', '3', '4', '5', "string", 1.5, 0x1234
diff --git a/benchtests/sprintf-source.c b/benchtests/sprintf-source.c
new file mode 100644
index 0000000000..29ea6c6a89
--- /dev/null
+++ b/benchtests/sprintf-source.c
@@ -0,0 +1,6 @@
+/* A set of arbitrarily selected positional format specifiers.  */
+#define FORMAT1 "   %1$d: %2$c%3$c%4$c%5$c%6$c %7$20s %8$f (%9$02x)\n"
+/* A matching, but arbitrarily selected, set of non-positional format specifiers.  */
+#define FORMAT2 "   %d: %c%c%c%c%c %20s %f (%02x)\n"
+/* Sufficiently large buffer.  */
+char buf[256];