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path: root/validation/optim/fact-and-shift.c
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Diffstat (limited to 'validation/optim/fact-and-shift.c')
-rw-r--r--validation/optim/fact-and-shift.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/validation/optim/fact-and-shift.c b/validation/optim/fact-and-shift.c
new file mode 100644
index 00000000..e9eb9cce
--- /dev/null
+++ b/validation/optim/fact-and-shift.c
@@ -0,0 +1,26 @@
+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-output-ignore
+ * check-output-returns: 1
+ */