diff --git a/validation/optim/fact-add-mul.c b/validation/optim/fact-add-mul.c
new file mode 100644
index 000000000000..48c3d656accc
--- /dev/null
+++ b/validation/optim/fact-add-mul.c
@@ -0,0 +1,28 @@
+int fr_abx(int a, int b, int x) { return ((a * x) + (b * x)) == ((a + b) * x); }
+int fl_abx(int a, int b, int x) { return ((x * a) + (x * b)) == ((a + b) * x); }
+int fm_abx(int a, int b, int x) { return ((a * x) + (x * b)) == ((a + b) * x); }
+int fn_abx(int a, int b, int x) { return ((x * a) + (b * x)) == ((a + b) * x); }
+
+int fr_bax(int b, int a, int x) { return ((a * x) + (b * x)) == ((b + a) * x); }
+int fl_bax(int b, int a, int x) { return ((x * a) + (x * b)) == ((b + a) * x); }
+int fm_bax(int b, int a, int x) { return ((a * x) + (x * b)) == ((b + a) * x); }
+int fn_bax(int b, int a, int x) { return ((x * a) + (b * x)) == ((b + a) * x); }
+
+int fr_axb(int a, int x, int b) { return ((a * x) + (b * x)) == ((a + b) * x); }
+int fl_axb(int a, int x, int b) { return ((x * a) + (x * b)) == ((a + b) * x); }
+int fm_axb(int a, int x, int b) { return ((a * x) + (x * b)) == ((a + b) * x); }
+int fn_axb(int a, int x, int b) { return ((x * a) + (b * x)) == ((a + b) * x); }
+
+int fr_bxa(int b, int x, int a) { return ((b * x) + (a * x)) == ((b + a) * x); }
+int fl_bxa(int b, int x, int a) { return ((x * b) + (x * a)) == ((b + a) * x); }
+int fm_bxa(int b, int x, int a) { return ((b * x) + (x * a)) == ((b + a) * x); }
+int fn_bxa(int b, int x, int a) { return ((x * b) + (a * x)) == ((b + a) * x); }
+
+/*
+ * check-name: fact-add-mul
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/fact-and-ior.c b/validation/optim/fact-and-ior.c
new file mode 100644
index 000000000000..f2a78eddf41d
--- /dev/null
+++ b/validation/optim/fact-and-ior.c
@@ -0,0 +1,28 @@
+int fr_abx(int a, int b, int x) { return ((a | x) & (b | x)) == ((a & b) | x); }
+int fl_abx(int a, int b, int x) { return ((x | a) & (x | b)) == ((a & b) | x); }
+int fm_abx(int a, int b, int x) { return ((a | x) & (x | b)) == ((a & b) | x); }
+int fn_abx(int a, int b, int x) { return ((x | a) & (b | x)) == ((a & b) | x); }
+
+int fr_bax(int b, int a, int x) { return ((a | x) & (b | x)) == ((b & a) | x); }
+int fl_bax(int b, int a, int x) { return ((x | a) & (x | b)) == ((b & a) | x); }
+int fm_bax(int b, int a, int x) { return ((a | x) & (x | b)) == ((b & a) | x); }
+int fn_bax(int b, int a, int x) { return ((x | a) & (b | x)) == ((b & a) | x); }
+
+int fr_axb(int a, int x, int b) { return ((a | x) & (b | x)) == ((a & b) | x); }
+int fl_axb(int a, int x, int b) { return ((x | a) & (x | b)) == ((a & b) | x); }
+int fm_axb(int a, int x, int b) { return ((a | x) & (x | b)) == ((a & b) | x); }
+int fn_axb(int a, int x, int b) { return ((x | a) & (b | x)) == ((a & b) | x); }
+
+int fr_bxa(int b, int x, int a) { return ((b | x) & (a | x)) == ((b & a) | x); }
+int fl_bxa(int b, int x, int a) { return ((x | b) & (x | a)) == ((b & a) | x); }
+int fm_bxa(int b, int x, int a) { return ((b | x) & (x | a)) == ((b & a) | x); }
+int fn_bxa(int b, int x, int a) { return ((x | b) & (a | x)) == ((b & a) | x); }
+
+/*
+ * check-name: fact-and-ior
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/fact-and-shift.c b/validation/optim/fact-and-shift.c
new file mode 100644
index 000000000000..401750216b44
--- /dev/null
+++ b/validation/optim/fact-and-shift.c
@@ -0,0 +1,27 @@
+typedef unsigned int uint;
+typedef   signed int sint;
+
+
+uint fact_and_shl(uint a, uint b, uint s)
+{
+	return ((a << s) & (b << s)) == ((a & b) << s);
+}
+
+uint fact_and_lsr(uint a, uint b, uint s)
+{
+	return ((a >> s) & (b >> s)) == ((a & b) >> s);
+}
+
+sint fact_and_asr(sint a, sint b, sint s)
+{
+	return ((a >> s) & (b >> s)) == ((a & b) >> s);
+}
+
+/*
+ * check-name: fact-and-shift
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/fact-ior-and.c b/validation/optim/fact-ior-and.c
new file mode 100644
index 000000000000..7af89df1e1f0
--- /dev/null
+++ b/validation/optim/fact-ior-and.c
@@ -0,0 +1,28 @@
+int fr_abx(int a, int b, int x) { return ((a & x) | (b & x)) == ((a | b) & x); }
+int fl_abx(int a, int b, int x) { return ((x & a) | (x & b)) == ((a | b) & x); }
+int fm_abx(int a, int b, int x) { return ((a & x) | (x & b)) == ((a | b) & x); }
+int fn_abx(int a, int b, int x) { return ((x & a) | (b & x)) == ((a | b) & x); }
+
+int fr_bax(int b, int a, int x) { return ((a & x) | (b & x)) == ((b | a) & x); }
+int fl_bax(int b, int a, int x) { return ((x & a) | (x & b)) == ((b | a) & x); }
+int fm_bax(int b, int a, int x) { return ((a & x) | (x & b)) == ((b | a) & x); }
+int fn_bax(int b, int a, int x) { return ((x & a) | (b & x)) == ((b | a) & x); }
+
+int fr_axb(int a, int x, int b) { return ((a & x) | (b & x)) == ((a | b) & x); }
+int fl_axb(int a, int x, int b) { return ((x & a) | (x & b)) == ((a | b) & x); }
+int fm_axb(int a, int x, int b) { return ((a & x) | (x & b)) == ((a | b) & x); }
+int fn_axb(int a, int x, int b) { return ((x & a) | (b & x)) == ((a | b) & x); }
+
+int fr_bxa(int b, int x, int a) { return ((b & x) | (a & x)) == ((b | a) & x); }
+int fl_bxa(int b, int x, int a) { return ((x & b) | (x & a)) == ((b | a) & x); }
+int fm_bxa(int b, int x, int a) { return ((b & x) | (x & a)) == ((b | a) & x); }
+int fn_bxa(int b, int x, int a) { return ((x & b) | (a & x)) == ((b | a) & x); }
+
+/*
+ * check-name: fact-ior-and
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/fact-ior-shift.c b/validation/optim/fact-ior-shift.c
new file mode 100644
index 000000000000..07fdf80604dc
--- /dev/null
+++ b/validation/optim/fact-ior-shift.c
@@ -0,0 +1,27 @@
+typedef unsigned int uint;
+typedef   signed int sint;
+
+
+uint fact_ior_shl(uint a, uint b, uint s)
+{
+	return ((a << s) | (b << s)) == ((a | b) << s);
+}
+
+uint fact_ior_lsr(uint a, uint b, uint s)
+{
+	return ((a >> s) | (b >> s)) == ((a | b) >> s);
+}
+
+sint fact_ior_asr(sint a, sint b, sint s)
+{
+	return ((a >> s) | (b >> s)) == ((a | b) >> s);
+}
+
+/*
+ * check-name: fact-ior-shift
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/fact-xor-and.c b/validation/optim/fact-xor-and.c
new file mode 100644
index 000000000000..905cbf4ab659
--- /dev/null
+++ b/validation/optim/fact-xor-and.c
@@ -0,0 +1,28 @@
+int fr_abx(int a, int b, int x) { return ((a & x) ^ (b & x)) == ((a ^ b) & x); }
+int fl_abx(int a, int b, int x) { return ((x & a) ^ (x & b)) == ((a ^ b) & x); }
+int fm_abx(int a, int b, int x) { return ((a & x) ^ (x & b)) == ((a ^ b) & x); }
+int fn_abx(int a, int b, int x) { return ((x & a) ^ (b & x)) == ((a ^ b) & x); }
+
+int fr_bax(int b, int a, int x) { return ((a & x) ^ (b & x)) == ((b ^ a) & x); }
+int fl_bax(int b, int a, int x) { return ((x & a) ^ (x & b)) == ((b ^ a) & x); }
+int fm_bax(int b, int a, int x) { return ((a & x) ^ (x & b)) == ((b ^ a) & x); }
+int fn_bax(int b, int a, int x) { return ((x & a) ^ (b & x)) == ((b ^ a) & x); }
+
+int fr_axb(int a, int x, int b) { return ((a & x) ^ (b & x)) == ((a ^ b) & x); }
+int fl_axb(int a, int x, int b) { return ((x & a) ^ (x & b)) == ((a ^ b) & x); }
+int fm_axb(int a, int x, int b) { return ((a & x) ^ (x & b)) == ((a ^ b) & x); }
+int fn_axb(int a, int x, int b) { return ((x & a) ^ (b & x)) == ((a ^ b) & x); }
+
+int fr_bxa(int b, int x, int a) { return ((b & x) ^ (a & x)) == ((b ^ a) & x); }
+int fl_bxa(int b, int x, int a) { return ((x & b) ^ (x & a)) == ((b ^ a) & x); }
+int fm_bxa(int b, int x, int a) { return ((b & x) ^ (x & a)) == ((b ^ a) & x); }
+int fn_bxa(int b, int x, int a) { return ((x & b) ^ (a & x)) == ((b ^ a) & x); }
+
+/*
+ * check-name: fact-xor-and
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/fact-xor-shift.c b/validation/optim/fact-xor-shift.c
new file mode 100644
index 000000000000..81fcda851400
--- /dev/null
+++ b/validation/optim/fact-xor-shift.c
@@ -0,0 +1,27 @@
+typedef unsigned int uint;
+typedef   signed int sint;
+
+
+uint fact_xor_shl(uint a, uint b, uint s)
+{
+	return ((a << s) ^ (b << s)) == ((a ^ b) << s);
+}
+
+uint fact_xor_lsr(uint a, uint b, uint s)
+{
+	return ((a >> s) ^ (b >> s)) == ((a ^ b) >> s);
+}
+
+sint fact_xor_asr(sint a, sint b, sint s)
+{
+	return ((a >> s) ^ (b >> s)) == ((a ^ b) >> s);
+}
+
+/*
+ * check-name: fact-xor-shift
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
