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Merge pull request #81 from fastfloat/dlemire/windows_arm

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Adding a build test for Windows ARM.
This commit is contained in:
Daniel Lemire 2021-06-07 10:06:03 -04:00 committed by GitHub
commit a7fbcb0a45
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 37 additions and 11 deletions
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21
.github/workflows/vs16-arm-ci.yml vendored Normal file
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@ -0,0 +1,21 @@
name: VS16-ARM-CI
on: [push, pull_request]
jobs:
ci:
name: windows-vs16
runs-on: windows-latest
strategy:
fail-fast: false
matrix:
include:
- {arch: ARM}
- {arch: ARM64}
steps:
- name: checkout
uses: actions/checkout@v2
- name: Use cmake
run: |
cmake -A ${{ matrix.arch }} -DCMAKE_CROSSCOMPILING=1 -DFASTFLOAT_TEST=ON -B build &&
cmake --build build --verbose

12
include/fast_float/float_common.h
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@ -129,23 +129,21 @@ fastfloat_really_inline int leading_zeroes(uint64_t input_num) {
#ifdef FASTFLOAT_32BIT
#if (!defined(_WIN32)) || defined(__MINGW32__)
// slow emulation routine for 32-bit
fastfloat_really_inline uint64_t __emulu(uint32_t x, uint32_t y) {
fastfloat_really_inline uint64_t emulu(uint32_t x, uint32_t y) {
return x * (uint64_t)y;
}
#endif
// slow emulation routine for 32-bit
#if !defined(__MINGW64__)
fastfloat_really_inline uint64_t _umul128(uint64_t ab, uint64_t cd,
uint64_t *hi) {
uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd);
uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd);
uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32));
uint64_t ad = emulu((uint32_t)(ab >> 32), (uint32_t)cd);
uint64_t bd = emulu((uint32_t)ab, (uint32_t)cd);
uint64_t adbc = ad + emulu((uint32_t)ab, (uint32_t)(cd >> 32));
uint64_t adbc_carry = !!(adbc < ad);
uint64_t lo = bd + (adbc << 32);
*hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) +
*hi = emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) +
(adbc_carry << 32) + !!(lo < bd);
return lo;
}

5
tests/CMakeLists.txt
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@ -6,7 +6,7 @@ include(FetchContent)
FetchContent_Declare(doctest
GIT_REPOSITORY https://github.com/onqtam/doctest.git
GIT_TAG 2.4.1)
GIT_TAG 2.4.6)
FetchContent_Declare(supplemental_test_files
GIT_REPOSITORY https://github.com/fastfloat/supplemental_test_files.git
GIT_TAG origin/main)
@ -33,6 +33,9 @@ target_compile_definitions(supplemental-data INTERFACE SUPPLEMENTAL_TEST_DATA_DI
function(fast_float_add_cpp_test TEST_NAME)
add_executable(${TEST_NAME} ${TEST_NAME}.cpp)
add_test(${TEST_NAME} ${TEST_NAME})
if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
target_compile_options(${TEST_NAME} PUBLIC /EHsc)
endif()
if(NOT WIN32)
target_compile_options(${TEST_NAME} PUBLIC -Werror -Wall -Wextra -Weffc++)
target_compile_options(${TEST_NAME} PUBLIC -Wsign-compare -Wshadow -Wwrite-strings -Wpointer-arith -Winit-self -Wconversion -Wsign-conversion)

10
tests/basictest.cpp
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@ -477,9 +477,13 @@ TEST_CASE("32bit.general") {
verify(append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",655), 0x1.2ced3p+0f);
verify(append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",656), 0x1.2ced3p+0f);
verify(append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",1000), 0x1.2ced3p+0f);
verify(append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",655) + "e-38", 0x1.fffff8p-127f);
verify(append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",656) + "e-38", 0x1.fffff8p-127f);
verify(append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",1000) + "e-38", 0x1.fffff8p-127f);
std::string test_string;
test_string = append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",655) + std::string("e-38");
verify(test_string, 0x1.fffff8p-127f);
test_string = append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",656) + std::string("e-38");
verify(test_string, 0x1.fffff8p-127f);
test_string = append_zeros("1.1754941406275178592461758986628081843312458647327962400313859427181746759860647699724722770042717456817626953125",1000) + std::string("e-38");
verify(test_string, 0x1.fffff8p-127f);
verify32(1.00000006e+09f);
verify32(1.4012984643e-45f);
verify32(1.1754942107e-38f);