93e423f19f
Either: - I forgot my alphabet (that E comes before F). - My juvenile inner brain finds unsigned literal constants with the sequence FU funny. ¿Por qué no los dos?
180 lines
8.8 KiB
C++
180 lines
8.8 KiB
C++
//===-- Unittests for stdbit ----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDSList-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "test/UnitTest/Test.h"
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/*
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* The intent of this test is validate that:
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* 1. We provide the definition of the various type generic macros of stdbit.h
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* (the macros are transitively included from stdbit-macros.h by stdbit.h).
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* 2. It dispatches to the correct underlying function.
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* Because unit tests build without public packaging, the object files produced
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* do not contain non-namespaced symbols.
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*/
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/*
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* Declare these BEFORE including stdbit-macros.h so that this test may still be
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* run even if a given target doesn't yet have these individual entrypoints
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* enabled.
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*/
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extern "C" {
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unsigned stdc_leading_zeros_uc(unsigned char) noexcept { return 0xAAU; }
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unsigned stdc_leading_zeros_us(unsigned short) noexcept { return 0xABU; }
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unsigned stdc_leading_zeros_ui(unsigned) noexcept { return 0xACU; }
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unsigned stdc_leading_zeros_ul(unsigned long) noexcept { return 0xADU; }
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unsigned stdc_leading_zeros_ull(unsigned long long) noexcept { return 0xAEU; }
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unsigned stdc_leading_ones_uc(unsigned char) noexcept { return 0xBAU; }
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unsigned stdc_leading_ones_us(unsigned short) noexcept { return 0xBBU; }
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unsigned stdc_leading_ones_ui(unsigned) noexcept { return 0xBCU; }
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unsigned stdc_leading_ones_ul(unsigned long) noexcept { return 0xBDU; }
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unsigned stdc_leading_ones_ull(unsigned long long) noexcept { return 0xBEU; }
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unsigned stdc_trailing_zeros_uc(unsigned char) noexcept { return 0xCAU; }
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unsigned stdc_trailing_zeros_us(unsigned short) noexcept { return 0xCBU; }
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unsigned stdc_trailing_zeros_ui(unsigned) noexcept { return 0xCCU; }
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unsigned stdc_trailing_zeros_ul(unsigned long) noexcept { return 0xCDU; }
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unsigned stdc_trailing_zeros_ull(unsigned long long) noexcept { return 0xCEU; }
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unsigned stdc_trailing_ones_uc(unsigned char) noexcept { return 0xDAU; }
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unsigned stdc_trailing_ones_us(unsigned short) noexcept { return 0xDBU; }
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unsigned stdc_trailing_ones_ui(unsigned) noexcept { return 0xDCU; }
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unsigned stdc_trailing_ones_ul(unsigned long) noexcept { return 0xDDU; }
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unsigned stdc_trailing_ones_ull(unsigned long long) noexcept { return 0xDEU; }
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unsigned stdc_first_leading_zero_uc(unsigned char) noexcept { return 0xEAU; }
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unsigned stdc_first_leading_zero_us(unsigned short) noexcept { return 0xEBU; }
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unsigned stdc_first_leading_zero_ui(unsigned) noexcept { return 0xECU; }
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unsigned stdc_first_leading_zero_ul(unsigned long) noexcept { return 0xEDU; }
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unsigned stdc_first_leading_zero_ull(unsigned long long) noexcept {
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return 0xEEU;
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}
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unsigned stdc_first_leading_one_uc(unsigned char) noexcept { return 0xFAU; }
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unsigned stdc_first_leading_one_us(unsigned short) noexcept { return 0xFBU; }
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unsigned stdc_first_leading_one_ui(unsigned) noexcept { return 0xFCU; }
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unsigned stdc_first_leading_one_ul(unsigned long) noexcept { return 0xFDU; }
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unsigned stdc_first_leading_one_ull(unsigned long long) noexcept {
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return 0xFEU;
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}
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unsigned stdc_first_trailing_zero_uc(unsigned char) noexcept { return 0x0AU; }
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unsigned stdc_first_trailing_zero_us(unsigned short) noexcept { return 0x0BU; }
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unsigned stdc_first_trailing_zero_ui(unsigned) noexcept { return 0x0CU; }
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unsigned stdc_first_trailing_zero_ul(unsigned long) noexcept { return 0x0DU; }
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unsigned stdc_first_trailing_zero_ull(unsigned long long) noexcept {
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return 0x0EU;
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}
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unsigned stdc_first_trailing_one_uc(unsigned char) noexcept { return 0x1AU; }
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unsigned stdc_first_trailing_one_us(unsigned short) noexcept { return 0x1BU; }
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unsigned stdc_first_trailing_one_ui(unsigned) noexcept { return 0x1CU; }
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unsigned stdc_first_trailing_one_ul(unsigned long) noexcept { return 0x1DU; }
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unsigned stdc_first_trailing_one_ull(unsigned long long) noexcept {
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return 0x1EU;
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}
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unsigned stdc_count_zeros_uc(unsigned char) noexcept { return 0x2AU; }
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unsigned stdc_count_zeros_us(unsigned short) noexcept { return 0x2BU; }
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unsigned stdc_count_zeros_ui(unsigned) noexcept { return 0x2CU; }
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unsigned stdc_count_zeros_ul(unsigned long) noexcept { return 0x2DU; }
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unsigned stdc_count_zeros_ull(unsigned long long) noexcept { return 0x2EU; }
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unsigned stdc_count_ones_uc(unsigned char) noexcept { return 0x3AU; }
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unsigned stdc_count_ones_us(unsigned short) noexcept { return 0x3BU; }
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unsigned stdc_count_ones_ui(unsigned) noexcept { return 0x3CU; }
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unsigned stdc_count_ones_ul(unsigned long) noexcept { return 0x3DU; }
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unsigned stdc_count_ones_ull(unsigned long long) noexcept { return 0x3EU; }
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bool stdc_has_single_bit_uc(unsigned char) noexcept { return false; }
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bool stdc_has_single_bit_us(unsigned short) noexcept { return false; }
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bool stdc_has_single_bit_ui(unsigned) noexcept { return false; }
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bool stdc_has_single_bit_ul(unsigned long) noexcept { return false; }
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bool stdc_has_single_bit_ull(unsigned long long) noexcept { return false; }
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}
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#include "include/llvm-libc-macros/stdbit-macros.h"
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TEST(LlvmLibcStdbitTest, TypeGenericMacroLeadingZeros) {
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EXPECT_EQ(stdc_leading_zeros(static_cast<unsigned char>(0U)), 0xAAU);
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EXPECT_EQ(stdc_leading_zeros(static_cast<unsigned short>(0U)), 0xABU);
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EXPECT_EQ(stdc_leading_zeros(0U), 0xACU);
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EXPECT_EQ(stdc_leading_zeros(0UL), 0xADU);
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EXPECT_EQ(stdc_leading_zeros(0ULL), 0xAEU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroLeadingOnes) {
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EXPECT_EQ(stdc_leading_ones(static_cast<unsigned char>(0U)), 0xBAU);
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EXPECT_EQ(stdc_leading_ones(static_cast<unsigned short>(0U)), 0xBBU);
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EXPECT_EQ(stdc_leading_ones(0U), 0xBCU);
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EXPECT_EQ(stdc_leading_ones(0UL), 0xBDU);
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EXPECT_EQ(stdc_leading_ones(0ULL), 0xBEU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroTrailingZeros) {
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EXPECT_EQ(stdc_trailing_zeros(static_cast<unsigned char>(0U)), 0xCAU);
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EXPECT_EQ(stdc_trailing_zeros(static_cast<unsigned short>(0U)), 0xCBU);
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EXPECT_EQ(stdc_trailing_zeros(0U), 0xCCU);
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EXPECT_EQ(stdc_trailing_zeros(0UL), 0xCDU);
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EXPECT_EQ(stdc_trailing_zeros(0ULL), 0xCEU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroTrailingOnes) {
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EXPECT_EQ(stdc_trailing_ones(static_cast<unsigned char>(0U)), 0xDAU);
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EXPECT_EQ(stdc_trailing_ones(static_cast<unsigned short>(0U)), 0xDBU);
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EXPECT_EQ(stdc_trailing_ones(0U), 0xDCU);
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EXPECT_EQ(stdc_trailing_ones(0UL), 0xDDU);
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EXPECT_EQ(stdc_trailing_ones(0ULL), 0xDEU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroFirstLeadingZero) {
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EXPECT_EQ(stdc_first_leading_zero(static_cast<unsigned char>(0U)), 0xEAU);
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EXPECT_EQ(stdc_first_leading_zero(static_cast<unsigned short>(0U)), 0xEBU);
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EXPECT_EQ(stdc_first_leading_zero(0U), 0xECU);
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EXPECT_EQ(stdc_first_leading_zero(0UL), 0xEDU);
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EXPECT_EQ(stdc_first_leading_zero(0ULL), 0xEEU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroFirstLeadingOne) {
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EXPECT_EQ(stdc_first_leading_one(static_cast<unsigned char>(0U)), 0xFAU);
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EXPECT_EQ(stdc_first_leading_one(static_cast<unsigned short>(0U)), 0xFBU);
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EXPECT_EQ(stdc_first_leading_one(0U), 0xFCU);
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EXPECT_EQ(stdc_first_leading_one(0UL), 0xFDU);
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EXPECT_EQ(stdc_first_leading_one(0ULL), 0xFEU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroFirstTrailingZero) {
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EXPECT_EQ(stdc_first_trailing_zero(static_cast<unsigned char>(0U)), 0x0AU);
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EXPECT_EQ(stdc_first_trailing_zero(static_cast<unsigned short>(0U)), 0x0BU);
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EXPECT_EQ(stdc_first_trailing_zero(0U), 0x0CU);
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EXPECT_EQ(stdc_first_trailing_zero(0UL), 0x0DU);
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EXPECT_EQ(stdc_first_trailing_zero(0ULL), 0x0EU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroFirstTrailingOne) {
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EXPECT_EQ(stdc_first_trailing_one(static_cast<unsigned char>(0U)), 0x1AU);
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EXPECT_EQ(stdc_first_trailing_one(static_cast<unsigned short>(0U)), 0x1BU);
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EXPECT_EQ(stdc_first_trailing_one(0U), 0x1CU);
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EXPECT_EQ(stdc_first_trailing_one(0UL), 0x1DU);
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EXPECT_EQ(stdc_first_trailing_one(0ULL), 0x1EU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroCountZeros) {
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EXPECT_EQ(stdc_count_zeros(static_cast<unsigned char>(0U)), 0x2AU);
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EXPECT_EQ(stdc_count_zeros(static_cast<unsigned short>(0U)), 0x2BU);
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EXPECT_EQ(stdc_count_zeros(0U), 0x2CU);
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EXPECT_EQ(stdc_count_zeros(0UL), 0x2DU);
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EXPECT_EQ(stdc_count_zeros(0ULL), 0x2EU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroCountOnes) {
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EXPECT_EQ(stdc_count_ones(static_cast<unsigned char>(0U)), 0x3AU);
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EXPECT_EQ(stdc_count_ones(static_cast<unsigned short>(0U)), 0x3BU);
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EXPECT_EQ(stdc_count_ones(0U), 0x3CU);
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EXPECT_EQ(stdc_count_ones(0UL), 0x3DU);
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EXPECT_EQ(stdc_count_ones(0ULL), 0x3EU);
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}
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TEST(LlvmLibcStdbitTest, TypeGenericMacroHasSingleBit) {
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EXPECT_EQ(stdc_has_single_bit(static_cast<unsigned char>(1U)), false);
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EXPECT_EQ(stdc_has_single_bit(static_cast<unsigned short>(1U)), false);
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EXPECT_EQ(stdc_has_single_bit(1U), false);
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EXPECT_EQ(stdc_has_single_bit(1UL), false);
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EXPECT_EQ(stdc_has_single_bit(1ULL), false);
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}
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