diff options
Diffstat (limited to 'test/builtins/Unit/truncsfhf2_test.c')
-rw-r--r-- | test/builtins/Unit/truncsfhf2_test.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/test/builtins/Unit/truncsfhf2_test.c b/test/builtins/Unit/truncsfhf2_test.c new file mode 100644 index 000000000000..5bc3c8e22d59 --- /dev/null +++ b/test/builtins/Unit/truncsfhf2_test.c @@ -0,0 +1,114 @@ +//===--------------- truncsfhf2_test.c - Test __truncsfhf2 ----------------===// +// +// 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 __truncsfhf2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include <stdio.h> + +#include "fp_test.h" + +uint16_t __truncsfhf2(float a); + +int test__truncsfhf2(float a, uint16_t expected) +{ + uint16_t x = __truncsfhf2(a); + int ret = compareResultH(x, expected); + + if (ret){ + printf("error in test__truncsfhf2(%f) = %#.4x, " + "expected %#.4x\n", a, x, fromRep16(expected)); + } + return ret; +} + +char assumption_1[sizeof(__fp16) * CHAR_BIT == 16] = {0}; + +int main() +{ + // qNaN + if (test__truncsfhf2(makeQNaN32(), + UINT16_C(0x7e00))) + return 1; + // NaN + if (test__truncsfhf2(makeNaN32(UINT32_C(0x8000)), + UINT16_C(0x7e00))) + return 1; + // inf + if (test__truncsfhf2(makeInf32(), + UINT16_C(0x7c00))) + return 1; + if (test__truncsfhf2(-makeInf32(), + UINT16_C(0xfc00))) + return 1; + // zero + if (test__truncsfhf2(0.0f, UINT16_C(0x0))) + return 1; + if (test__truncsfhf2(-0.0f, UINT16_C(0x8000))) + return 1; + + if (test__truncsfhf2(3.1415926535f, + UINT16_C(0x4248))) + return 1; + if (test__truncsfhf2(-3.1415926535f, + UINT16_C(0xc248))) + return 1; + if (test__truncsfhf2(0x1.987124876876324p+100f, + UINT16_C(0x7c00))) + return 1; + if (test__truncsfhf2(0x1.987124876876324p+12f, + UINT16_C(0x6e62))) + return 1; + if (test__truncsfhf2(0x1.0p+0f, + UINT16_C(0x3c00))) + return 1; + if (test__truncsfhf2(0x1.0p-14f, + UINT16_C(0x0400))) + return 1; + // denormal + if (test__truncsfhf2(0x1.0p-20f, + UINT16_C(0x0010))) + return 1; + if (test__truncsfhf2(0x1.0p-24f, + UINT16_C(0x0001))) + return 1; + if (test__truncsfhf2(-0x1.0p-24f, + UINT16_C(0x8001))) + return 1; + if (test__truncsfhf2(0x1.5p-25f, + UINT16_C(0x0001))) + return 1; + // and back to zero + if (test__truncsfhf2(0x1.0p-25f, + UINT16_C(0x0000))) + return 1; + if (test__truncsfhf2(-0x1.0p-25f, + UINT16_C(0x8000))) + return 1; + // max (precise) + if (test__truncsfhf2(65504.0f, + UINT16_C(0x7bff))) + return 1; + // max (rounded) + if (test__truncsfhf2(65519.0f, + UINT16_C(0x7bff))) + return 1; + // max (to +inf) + if (test__truncsfhf2(65520.0f, + UINT16_C(0x7c00))) + return 1; + if (test__truncsfhf2(65536.0f, + UINT16_C(0x7c00))) + return 1; + if (test__truncsfhf2(-65520.0f, + UINT16_C(0xfc00))) + return 1; + return 0; +} |