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-rw-r--r--test/Unit/floatuntixf_test.c217
1 files changed, 217 insertions, 0 deletions
diff --git a/test/Unit/floatuntixf_test.c b/test/Unit/floatuntixf_test.c
new file mode 100644
index 000000000..a62cb53bb
--- /dev/null
+++ b/test/Unit/floatuntixf_test.c
@@ -0,0 +1,217 @@
+//===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __floatuntixf for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#if __x86_64
+
+#include "int_lib.h"
+#include <float.h>
+#include <stdio.h>
+
+// Returns: convert a to a long double, rounding toward even.
+
+// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
+// tu_int is a 128 bit integral type
+
+// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
+// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
+
+long double __floatuntixf(tu_int a);
+
+int test__floatuntixf(tu_int a, long double expected)
+{
+ long double x = __floatuntixf(a);
+ if (x != expected)
+ {
+ utwords at;
+ at.all = a;
+ printf("error in __floatuntixf(0x%.16llX%.16llX) = %LA, expected %LA\n",
+ at.high, at.low, x, expected);
+ }
+ return x != expected;
+}
+
+char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
+char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
+char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
+
+#endif
+
+int main()
+{
+#if __x86_64
+ if (test__floatuntixf(0, 0.0))
+ return 1;
+
+ if (test__floatuntixf(1, 1.0))
+ return 1;
+ if (test__floatuntixf(2, 2.0))
+ return 1;
+ if (test__floatuntixf(20, 20.0))
+ return 1;
+
+ if (test__floatuntixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))
+ return 1;
+ if (test__floatuntixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))
+ return 1;
+ if (test__floatuntixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))
+ return 1;
+ if (test__floatuntixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))
+ return 1;
+ if (test__floatuntixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))
+ return 1;
+ if (test__floatuntixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))
+ return 1;
+ if (test__floatuntixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))
+ return 1;
+
+ if (test__floatuntixf(0x8000008000000000ULL, 0x8.000008p+60))
+ return 1;
+ if (test__floatuntixf(0x8000000000000800ULL, 0x8.0000000000008p+60))
+ return 1;
+ if (test__floatuntixf(0x8000010000000000ULL, 0x8.00001p+60))
+ return 1;
+ if (test__floatuntixf(0x8000000000001000ULL, 0x8.000000000001p+60))
+ return 1;
+
+ if (test__floatuntixf(0x8000000000000000ULL, 0x8p+60))
+ return 1;
+ if (test__floatuntixf(0x8000000000000001ULL, 0x8.000000000000001p+60L))
+ return 1;
+
+ if (test__floatuntixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
+ return 1;
+
+ if (test__floatuntixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
+ return 1;
+
+ if (test__floatuntixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
+ return 1;
+ if (test__floatuntixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
+ return 1;
+
+ if (test__floatuntixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
+ return 1;
+ if (test__floatuntixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
+ return 1;
+
+ if (test__floatuntixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
+ return 1;
+
+ if (test__floatuntixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
+ return 1;
+
+ if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),
+ 0x1.FFFFFFFFFFFFFFFEp+127L))
+ return 1;
+ if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
+ 0x1.0000000000000000p+128L))
+ return 1;
+
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),
+ 0x1.2345678901234562p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),
+ 0x1.2345678901234562p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),
+ 0x1.2345678901234562p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),
+ 0x1.2345678901234564p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),
+ 0x1.2345678901234564p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),
+ 0x1.2345678901234564p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),
+ 0x1.2345678901234564p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),
+ 0x1.2345678901234566p+108L))
+ return 1;
+ if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),
+ 0x1.2345678901234566p+108L))
+ return 1;
+#endif
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 01:18:18 +0000