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path: root/validation/optim/cmp-sext.c
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Diffstat (limited to 'validation/optim/cmp-sext.c')
-rw-r--r--validation/optim/cmp-sext.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/validation/optim/cmp-sext.c b/validation/optim/cmp-sext.c
new file mode 100644
index 00000000..13f4fbdf
--- /dev/null
+++ b/validation/optim/cmp-sext.c
@@ -0,0 +1,23 @@
+#define T(TYPE) __##TYPE##_TYPE__
+#define cmp(TYPE, X, OP, Y) ((T(TYPE)) X OP (T(TYPE)) Y)
+#define TEST(T1, T2, X, OP, Y) cmp(T1, X, OP, Y) == cmp(T2, X, OP, Y)
+
+#define ARGS(TYPE) T(TYPE) a, T(TYPE)b
+
+_Bool cmpe_sextp(ARGS(INT32)) { return TEST(UINT64, UINT32, a, ==, 0x7fffffff); }
+_Bool cmps_sextp(ARGS(INT32)) { return TEST( INT64, INT32, a, < , 0x7fffffff); }
+_Bool cmpu_sextp(ARGS(INT32)) { return TEST(UINT64, UINT32, a, < , 0x7fffffff); }
+_Bool cmpe_sextn(ARGS(INT32)) { return TEST(UINT64, UINT32, a, ==, -1); }
+_Bool cmps_sextn(ARGS(INT32)) { return TEST( INT64, INT32, a, < , -1); }
+_Bool cmpu_sextn(ARGS(INT32)) { return TEST(UINT64, UINT32, a, < , -1); }
+
+_Bool cmpltu_sext(int a) { return (a < 0x80000000ULL) == (a >= 0); }
+_Bool cmpgtu_sext(int a) { return (a >= 0x80000000ULL) == (a < 0); }
+
+/*
+ * check-name: cmp-sext
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */