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Siva Chandra Reddy
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[libc][NFC] Add template tests for a bunch of math functions.
Namely, template tests have been added for the following functions: ceil, copysign, fabs, fmax, fmin, floor, trunc, round.
1 parent 82240e0 commit 80e166f

34 files changed

+743
-1364
lines changed

‎libc/test/src/math/CMakeLists.txt

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@@ -82,6 +82,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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fabs_test.cpp
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HDRS
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FAbsTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fabs
@@ -95,6 +97,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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fabsf_test.cpp
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HDRS
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FAbsTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fabsf
@@ -108,6 +112,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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fabsl_test.cpp
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HDRS
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FAbsTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fabsl
@@ -121,6 +127,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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trunc_test.cpp
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HDRS
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TruncTest.h
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DEPENDS
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libc.include.math
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libc.src.math.trunc
@@ -134,6 +142,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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truncf_test.cpp
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HDRS
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TruncTest.h
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DEPENDS
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libc.include.math
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libc.src.math.truncf
@@ -147,6 +157,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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truncl_test.cpp
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HDRS
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TruncTest.h
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DEPENDS
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libc.include.math
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libc.src.math.truncl
@@ -160,6 +172,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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ceil_test.cpp
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HDRS
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CeilTest.h
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DEPENDS
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libc.include.math
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libc.src.math.ceil
@@ -173,6 +187,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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ceilf_test.cpp
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HDRS
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CeilTest.h
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DEPENDS
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libc.include.math
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libc.src.math.ceilf
@@ -186,6 +202,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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ceill_test.cpp
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HDRS
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CeilTest.h
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DEPENDS
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libc.include.math
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libc.src.math.ceill
@@ -199,6 +217,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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floor_test.cpp
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HDRS
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FloorTest.h
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DEPENDS
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libc.include.math
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libc.src.math.floor
@@ -212,6 +232,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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floorf_test.cpp
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HDRS
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FloorTest.h
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DEPENDS
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libc.include.math
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libc.src.math.floorf
@@ -225,6 +247,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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floorl_test.cpp
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HDRS
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FloorTest.h
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DEPENDS
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libc.include.math
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libc.src.math.floorl
@@ -238,6 +262,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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round_test.cpp
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HDRS
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RoundTest.h
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DEPENDS
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libc.include.math
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libc.src.math.round
@@ -251,6 +277,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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roundf_test.cpp
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HDRS
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RoundTest.h
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DEPENDS
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libc.include.math
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libc.src.math.roundf
@@ -264,6 +292,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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roundl_test.cpp
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HDRS
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RoundTest.h
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DEPENDS
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libc.include.math
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libc.src.math.roundl
@@ -559,6 +589,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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copysign_test.cpp
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HDRS
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CopySignTest.h
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DEPENDS
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libc.include.math
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libc.src.math.copysign
@@ -571,6 +603,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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copysignf_test.cpp
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HDRS
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CopySignTest.h
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DEPENDS
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libc.include.math
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libc.src.math.copysignf
@@ -583,6 +617,8 @@ add_fp_unittest(
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libc_math_unittests
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copysignl_test.cpp
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HDRS
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CopySignTest.h
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DEPENDS
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libc.include.math
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libc.src.math.copysignl
@@ -832,6 +868,8 @@ add_fp_unittest(
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libc_math_unittests
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SRCS
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fminf_test.cpp
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HDRS
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FMinTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fminf
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libc_math_unittests
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SRCS
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fmin_test.cpp
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HDRS
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FMinTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fmin
@@ -856,6 +896,8 @@ add_fp_unittest(
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libc_math_unittests
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fminl_test.cpp
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HDRS
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FMinTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fminl
@@ -868,6 +910,8 @@ add_fp_unittest(
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libc_math_unittests
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fmaxf_test.cpp
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HDRS
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FMaxTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fmaxf
@@ -880,6 +924,8 @@ add_fp_unittest(
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libc_math_unittests
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fmax_test.cpp
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HDRS
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FMaxTest.h
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libc.include.math
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libc.src.math.fmax
@@ -892,6 +938,8 @@ add_fp_unittest(
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libc_math_unittests
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fmaxl_test.cpp
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HDRS
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FMaxTest.h
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DEPENDS
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libc.include.math
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libc.src.math.fmaxl

‎libc/test/src/math/CeilTest.h

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//===-- Utility class to test ceil[f|l] -------------------------*- C++ -*-===//
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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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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "utils/FPUtil/TestHelpers.h"
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#include "utils/MPFRWrapper/MPFRUtils.h"
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#include "utils/UnitTest/Test.h"
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#include <math.h>
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namespace mpfr = __llvm_libc::testing::mpfr;
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template <typename T> class CeilTest : public __llvm_libc::testing::Test {
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DECLARE_SPECIAL_CONSTANTS(T)
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public:
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typedef T (*CeilFunc)(T);
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void testSpecialNumbers(CeilFunc func) {
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EXPECT_FP_EQ(zero, func(zero));
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EXPECT_FP_EQ(negZero, func(negZero));
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EXPECT_FP_EQ(inf, func(inf));
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EXPECT_FP_EQ(negInf, func(negInf));
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EXPECT_FP_EQ(aNaN, func(aNaN));
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}
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void testRoundedNumbers(CeilFunc func) {
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EXPECT_FP_EQ(T(1.0), func(T(1.0)));
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EXPECT_FP_EQ(T(-1.0), func(T(-1.0)));
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EXPECT_FP_EQ(T(10.0), func(T(10.0)));
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EXPECT_FP_EQ(T(-10.0), func(T(-10.0)));
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EXPECT_FP_EQ(T(1234.0), func(T(1234.0)));
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EXPECT_FP_EQ(T(-1234.0), func(T(-1234.0)));
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}
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void testFractions(CeilFunc func) {
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EXPECT_FP_EQ(T(1.0), func(T(0.5)));
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EXPECT_FP_EQ(T(-0.0), func(T(-0.5)));
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EXPECT_FP_EQ(T(1.0), func(T(0.115)));
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EXPECT_FP_EQ(T(-0.0), func(T(-0.115)));
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EXPECT_FP_EQ(T(1.0), func(T(0.715)));
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EXPECT_FP_EQ(T(-0.0), func(T(-0.715)));
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EXPECT_FP_EQ(T(2.0), func(T(1.3)));
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EXPECT_FP_EQ(T(-1.0), func(T(-1.3)));
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EXPECT_FP_EQ(T(2.0), func(T(1.5)));
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EXPECT_FP_EQ(T(-1.0), func(T(-1.5)));
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EXPECT_FP_EQ(T(2.0), func(T(1.75)));
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EXPECT_FP_EQ(T(-1.0), func(T(-1.75)));
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EXPECT_FP_EQ(T(11.0), func(T(10.32)));
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EXPECT_FP_EQ(T(-10.0), func(T(-10.32)));
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EXPECT_FP_EQ(T(11.0), func(T(10.65)));
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EXPECT_FP_EQ(T(-10.0), func(T(-10.65)));
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EXPECT_FP_EQ(T(1235.0), func(T(1234.38)));
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EXPECT_FP_EQ(T(-1234.0), func(T(-1234.38)));
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EXPECT_FP_EQ(T(1235.0), func(T(1234.96)));
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EXPECT_FP_EQ(T(-1234.0), func(T(-1234.96)));
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}
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void testRange(CeilFunc func) {
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constexpr UIntType count = 10000000;
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constexpr UIntType step = UIntType(-1) / count;
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for (UIntType i = 0, v = 0; i <= count; ++i, v += step) {
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T x = T(FPBits(v));
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if (isnan(x) || isinf(x))
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continue;
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ASSERT_MPFR_MATCH(mpfr::Operation::Ceil, x, func(x), 0.0);
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}
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}
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};
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#define LIST_CEIL_TESTS(T, func) \
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using LlvmLibcCeilTest = CeilTest<T>; \
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TEST_F(LlvmLibcCeilTest, SpecialNumbers) { testSpecialNumbers(&func); } \
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TEST_F(LlvmLibcCeilTest, RoundedNubmers) { testRoundedNumbers(&func); } \
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TEST_F(LlvmLibcCeilTest, Fractions) { testFractions(&func); } \
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TEST_F(LlvmLibcCeilTest, Range) { testRange(&func); }

‎libc/test/src/math/CopySignTest.h

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//===-- Utility class to test copysign[f|l] ---------------------*- C++ -*-===//
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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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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "utils/FPUtil/TestHelpers.h"
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#include "utils/MPFRWrapper/MPFRUtils.h"
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#include "utils/UnitTest/Test.h"
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#include <math.h>
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namespace mpfr = __llvm_libc::testing::mpfr;
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template <typename T> class CopySignTest : public __llvm_libc::testing::Test {
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DECLARE_SPECIAL_CONSTANTS(T)
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public:
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typedef T (*CopySignFunc)(T, T);
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void testSpecialNumbers(CopySignFunc func) {
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EXPECT_FP_EQ(aNaN, func(aNaN, -1.0));
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EXPECT_FP_EQ(aNaN, func(aNaN, 1.0));
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EXPECT_FP_EQ(negInf, func(inf, -1.0));
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EXPECT_FP_EQ(inf, func(negInf, 1.0));
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EXPECT_FP_EQ(negZero, func(zero, -1.0));
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EXPECT_FP_EQ(zero, func(negZero, 1.0));
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}
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void testRange(CopySignFunc func) {
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constexpr UIntType count = 10000000;
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constexpr UIntType step = UIntType(-1) / count;
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for (UIntType i = 0, v = 0; i <= count; ++i, v += step) {
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T x = T(FPBits(v));
40+
if (isnan(x) || isinf(x))
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continue;
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double res1 = func(x, -x);
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ASSERT_FP_EQ(res1, -x);
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double res2 = func(x, x);
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ASSERT_FP_EQ(res2, x);
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}
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}
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};
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#define LIST_COPYSIGN_TESTS(T, func) \
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using LlvmLibcCopySignTest = CopySignTest<T>; \
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TEST_F(LlvmLibcCopySignTest, SpecialNumbers) { testSpecialNumbers(&func); } \
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TEST_F(LlvmLibcCopySignTest, Range) { testRange(&func); }

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