mysteriously slow code

2 files changed, 70 insertions, 0 deletions

diff --git a/test/monniaux/too_slow/Makefile b/test/monniaux/too_slow/Makefile
new file mode 100644
index 00000000..bdc23def
--- /dev/null
+++ b/test/monniaux/too_slow/Makefile
@@ -0,0 +1,27 @@
+include ../rules.mk
+
+PRODUCTS=memset_from_bitsliced-aes.gcc.host.out memset_from_bitsliced-aes.ccomp.host.out \
+	memset_from_bitsliced-aes.gcc.k1c.out memset_from_bitsliced-aes.ccomp.k1c.out \
+	memset_from_bitsliced-aes.gcc.k1c.s memset_from_bitsliced-aes.ccomp.k1c.s
+
+all:	$(PRODUCTS)
+
+memset_from_bitsliced-aes.gcc.host.s memset_from_bitsliced-aes.ccomp.host.s memset_from_bitsliced-aes.gcc.k1c.s memset_from_bitsliced-aes.ccomp.k1c.s : ../clock.h
+
+memset_from_bitsliced-aes.ccomp.host: memset_from_bitsliced-aes.ccomp.host.o ../clock.gcc.host.o
+	$(CCOMP) $(CCOMPFLAGS) $+ -o $@
+
+memset_from_bitsliced-aes.gcc.host: memset_from_bitsliced-aes.gcc.host.o ../clock.gcc.host.o
+	$(CC) $(CFLAGS) $+ -o $@
+
+memset_from_bitsliced-aes.gcc.k1c: memset_from_bitsliced-aes.gcc.k1c.o ../clock.gcc.k1c.o
+	$(K1C_CC) $(K1C_CFLAGS) $+ -o $@
+
+memset_from_bitsliced-aes.ccomp.k1c: memset_from_bitsliced-aes.ccomp.k1c.o ../clock.gcc.k1c.o
+	$(K1C_CCOMP) $(K1C_CCOMPFLAGS) $+ -o $@
+
+clean:
+	-rm -f *.o *.s *.k1c
+
+.PHONY: clean
+
diff --git a/test/monniaux/too_slow/memset_from_bitsliced-aes.c b/test/monniaux/too_slow/memset_from_bitsliced-aes.c
new file mode 100644
index 00000000..32137b55
--- /dev/null
+++ b/test/monniaux/too_slow/memset_from_bitsliced-aes.c
@@ -0,0 +1,43 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include "../clock.h"
+
+typedef uint64_t a;
+a n[128];
+int o, bs_expand_key_k;
+void b(a (*)[], uint8_t *);
+void c(uint8_t d, uint8_t e, size_t f, uint8_t g, uint8_t iv) {
+  a i[1];
+  b(i, g);
+}
+
+void b(a (*i)[], uint8_t *j) {
+  for (; o < 176; o += 8) {
+    bs_expand_key_k = 4;
+    for (; bs_expand_key_k < 128; bs_expand_key_k += 128 / 64)
+      ;
+    memset(n, 0, sizeof(n));
+  }
+}
+
+void aes_ctr_test() {
+  uint8_t k = "";
+  uint8_t l = "";
+  uint8_t m = "";
+  uint8_t output[4];
+  c(output, m, 4, k, l);
+}
+
+int main(int argc, char * argv[])
+{
+  clock_prepare();
+  
+    clock_start();
+
+    aes_ctr_test();
+    clock_stop();
+    print_total_clock();
+    
+    return 0;
+}