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-rw-r--r--test/Unit/fixunssfdi_test.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/test/Unit/fixunssfdi_test.c b/test/Unit/fixunssfdi_test.c
new file mode 100644
index 000000000..cde3c22a7
--- /dev/null
+++ b/test/Unit/fixunssfdi_test.c
@@ -0,0 +1,95 @@
+//===-- fixunssfdi_test.c - Test __fixunssfdi -----------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __fixunssfdi for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+#include <stdio.h>
+
+// Returns: convert a to a unsigned long long, rounding toward zero.
+// Negative values all become zero.
+
+// Assumption: float is a IEEE 32 bit floating point type
+// du_int is a 64 bit integral type
+// value in float is representable in du_int or is negative
+// (no range checking performed)
+
+// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
+
+du_int __fixunssfdi(float a);
+
+int test__fixunssfdi(float a, du_int expected)
+{
+ du_int x = __fixunssfdi(a);
+ if (x != expected)
+ printf("error in __fixunssfdi(%A) = %llX, expected %llX\n",
+ a, x, expected);
+ return x != expected;
+}
+
+char assumption_1[sizeof(du_int) == 2*sizeof(si_int)] = {0};
+char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
+char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
+
+int main()
+{
+ if (test__fixunssfdi(0.0F, 0))
+ return 1;
+
+ if (test__fixunssfdi(0.5F, 0))
+ return 1;
+ if (test__fixunssfdi(0.99F, 0))
+ return 1;
+ if (test__fixunssfdi(1.0F, 1))
+ return 1;
+ if (test__fixunssfdi(1.5F, 1))
+ return 1;
+ if (test__fixunssfdi(1.99F, 1))
+ return 1;
+ if (test__fixunssfdi(2.0F, 2))
+ return 1;
+ if (test__fixunssfdi(2.01F, 2))
+ return 1;
+ if (test__fixunssfdi(-0.5F, 0))
+ return 1;
+ if (test__fixunssfdi(-0.99F, 0))
+ return 1;
+#if !TARGET_LIBGCC
+ if (test__fixunssfdi(-1.0F, 0)) // libgcc ignores "returns 0 for negative input" spec
+ return 1;
+ if (test__fixunssfdi(-1.5F, 0))
+ return 1;
+ if (test__fixunssfdi(-1.99F, 0))
+ return 1;
+ if (test__fixunssfdi(-2.0F, 0))
+ return 1;
+ if (test__fixunssfdi(-2.01F, 0))
+ return 1;
+#endif
+
+ if (test__fixunssfdi(0x1.FFFFFEp+63F, 0xFFFFFF0000000000LL))
+ return 1;
+ if (test__fixunssfdi(0x1.000000p+63F, 0x8000000000000000LL))
+ return 1;
+ if (test__fixunssfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
+ return 1;
+ if (test__fixunssfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
+ return 1;
+
+#if !TARGET_LIBGCC
+ if (test__fixunssfdi(-0x1.FFFFFEp+62F, 0x0000000000000000LL))
+ return 1;
+ if (test__fixunssfdi(-0x1.FFFFFCp+62F, 0x0000000000000000LL))
+ return 1;
+#endif
+
+ return 0;
+}