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Diffstat (limited to 'test/builtins/Unit/divti3_test.c')
-rw-r--r-- | test/builtins/Unit/divti3_test.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/test/builtins/Unit/divti3_test.c b/test/builtins/Unit/divti3_test.c new file mode 100644 index 000000000000..bc81c2a5418d --- /dev/null +++ b/test/builtins/Unit/divti3_test.c @@ -0,0 +1,78 @@ +//===-- divti3_test.c - Test __divti3 -------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __divti3 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" +#include <stdio.h> + +#ifdef CRT_HAS_128BIT + +// Returns: a / b + +ti_int __divti3(ti_int a, ti_int b); + +int test__divti3(ti_int a, ti_int b, ti_int expected) +{ + ti_int x = __divti3(a, b); + if (x != expected) + { + twords at; + at.all = a; + twords bt; + bt.all = b; + twords xt; + xt.all = x; + twords expectedt; + expectedt.all = expected; + printf("error in __divti3: 0x%llX%.16llX / 0x%llX%.16llX = " + "0x%llX%.16llX, expected 0x%llX%.16llX\n", + at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low, + expectedt.s.high, expectedt.s.low); + } + return x != expected; +} + +char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; + +#endif + +int main() +{ +#ifdef CRT_HAS_128BIT + if (test__divti3(0, 1, 0)) + return 1; + if (test__divti3(0, -1, 0)) + return 1; + + if (test__divti3(2, 1, 2)) + return 1; + if (test__divti3(2, -1, -2)) + return 1; + if (test__divti3(-2, 1, -2)) + return 1; + if (test__divti3(-2, -1, 2)) + return 1; + + if (test__divti3(make_ti(0x8000000000000000LL, 0), 1, make_ti(0x8000000000000000LL, 0))) + return 1; + if (test__divti3(make_ti(0x8000000000000000LL, 0), -1, make_ti(0x8000000000000000LL, 0))) + return 1; + if (test__divti3(make_ti(0x8000000000000000LL, 0), -2, make_ti(0x4000000000000000LL, 0))) + return 1; + if (test__divti3(make_ti(0x8000000000000000LL, 0), 2, make_ti(0xC000000000000000LL, 0))) + return 1; + +#else + printf("skipped\n"); +#endif + return 0; +} |