diff --git a/.gitignore b/.gitignore
index 2891042..4fa574f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -81,6 +81,7 @@ regressions/ck_pr/benchmark/ck_pr_cas_64_2
 regressions/ck_pr/benchmark/ck_pr_faa_64
 regressions/ck_pr/benchmark/ck_pr_fas_64
 regressions/ck_pr/benchmark/ck_pr_neg_64
+regressions/ck_pr/benchmark/fp
 regressions/ck_pr/validate/ck_pr_add
 regressions/ck_pr/validate/ck_pr_add
 regressions/ck_pr/validate/ck_pr_and
@@ -91,11 +92,13 @@ regressions/ck_pr/validate/ck_pr_bts
 regressions/ck_pr/validate/ck_pr_btx
 regressions/ck_pr/validate/ck_pr_cas
 regressions/ck_pr/validate/ck_pr_dec
+regressions/ck_pr/validate/ck_pr_dec_zero
 regressions/ck_pr/validate/ck_pr_faa
 regressions/ck_pr/validate/ck_pr_fas
 regressions/ck_pr/validate/ck_pr_fax
 regressions/ck_pr/validate/ck_pr_fence
 regressions/ck_pr/validate/ck_pr_inc
+regressions/ck_pr/validate/ck_pr_inc_zero
 regressions/ck_pr/validate/ck_pr_load
 regressions/ck_pr/validate/ck_pr_n
 regressions/ck_pr/validate/ck_pr_or
diff --git a/regressions/ck_pr/benchmark/Makefile b/regressions/ck_pr/benchmark/Makefile
index 55183d8..3d2654d 100644
--- a/regressions/ck_pr/benchmark/Makefile
+++ b/regressions/ck_pr/benchmark/Makefile
@@ -1,6 +1,8 @@
 .PHONY: clean
 
-all: ck_pr_cas_64 ck_pr_fas_64 ck_pr_cas_64_2 ck_pr_add_64 ck_pr_faa_64 ck_pr_neg_64 fp
+OBJECTS=ck_pr_cas_64 ck_pr_fas_64 ck_pr_cas_64_2 ck_pr_add_64 ck_pr_faa_64 ck_pr_neg_64 fp
+
+all: $(OBJECTS)
 
 fp: fp.c
 	$(CC) $(CFLAGS) -o fp fp.c
@@ -24,8 +26,7 @@ ck_pr_neg_64: ck_pr_neg_64.c
 	$(CC) $(CFLAGS) -o ck_pr_neg_64 ck_pr_neg_64.c -lm
 
 clean:
-	rm -rf ck_pr_cas_64 ck_pr_fas_64 ck_pr_cas_64_2 ck_pr_add_64 \
-	       ck_pr_faa_64 ck_pr_neg_64 *.dSYM *.exe
+	rm -rf *.dSYM *.exe *.o $(OBJECTS)
 
 include ../../../build/regressions.build
 CFLAGS+=$(PTHREAD_CFLAGS) -D_GNU_SOURCE