Commit Graph

93 Commits

Author SHA1 Message Date
Siva Chandra Reddy d50149b42e [libc] Extend WrapperGen to emit aliases.
Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D90985
2020-11-06 16:12:10 -08:00
Siva Chandra Reddy 573ade4bef [libc][WrapperGen] Replace the C _Noreturn annotation with C++ [[noreturn]].
Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D90900
2020-11-06 11:37:48 -08:00
Siva Chandra Reddy 930cf1cb9f [libc] Add implementations of ilogb[f|l].
Depends on D90805.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D90806
2020-11-05 16:27:44 -08:00
Siva Chandra Reddy 0e3532da98 [libc][NFC] Make test macros callable from helper methods of test classes.
This is acheived by making the RunContext a state variable of the test
classes.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D90805
2020-11-05 16:14:24 -08:00
Michael Jones 5c801de13c [libc] Fix WrapperGen seeing no arguments as a void argument.
This corrects WrapperGen generating incorrect wrappers for functions
that take no arguments. Previously it would generate a wrapper with a
single argument of type `void`.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D90800
2020-11-05 19:13:37 +00:00
Siva Chandra Reddy e4be4bcf83 [libc][NFC] Use a convenience macro to declare special floating point constants.
Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D90262
2020-10-27 16:55:16 -07:00
Michael Jones f6bf2823c4 [libc] Use entrypoints.txt as the single source of list of functions for a platform.
The function listings in api.td are removed. The same lists are now deduced using the information
in entrypoints.txt.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D89267
2020-10-15 20:46:13 +00:00
Paula Toth f60686f35c [libc] Update buildbot worker version to 2.8.4.
Tested locally by connecting to LLVM master. (:
http://lab.llvm.org:8011/#/builders/78/builds/1

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D89069
2020-10-08 13:43:53 -07:00
Guillaume Chatelet e328456a9e [libc] Add missing TableGen dependency
Differential Revision: https://reviews.llvm.org/D87689
2020-09-15 14:26:04 +00:00
Guillaume Chatelet 00d6e7116c [libc] Add missing LibcFPTestHelpers library
Differential Revision: https://reviews.llvm.org/D87690
2020-09-15 14:25:34 +00:00
Tue Ly abf1c82dcc [libc] Extend MPFRMatcher to handle 2-input-1-output and support hypot function.
Differential Revision: https://reviews.llvm.org/D87514
2020-09-14 14:53:46 -04:00
Siva Chandra Reddy cb19e8c6d1 [libc][obvious] Include Sqrt.h in SqrtLongDoubleX86.h.
This makes SqrtLongDoubleX86.h includable by itself.
2020-09-10 13:25:54 -07:00
Siva Chandra Reddy fb542b0b8c [libc][MPFRWrapper] Provide a way to include MPFR header in downstream repos.
Reviewed By: asteinhauser

Differential Revision: https://reviews.llvm.org/D87412
2020-09-09 12:58:58 -07:00
Siva Chandra Reddy 8514ecb02d [libc] Add implementations of remquo[f|l] and remainder[f|l].
The implementation is not fully standards compliant in the sense that
errno is not set on error, and floating point exceptions are not raised.

Subnormal range and normal range are tested separately in the tests.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D86666
2020-09-03 22:00:17 -07:00
Tue Ly 5078825aa9 [libc] Add implementations for sqrt, sqrtf, and sqrtl.
Differential Revision: https://reviews.llvm.org/D84726
2020-08-26 09:46:18 -04:00
Siva Chandra Reddy fe44992b79 [libc][NFC] For remquo quotient, compare only 3 bits of MPFR and libc results. 2020-08-25 23:42:06 -07:00
Siva Chandra Reddy 1948acb61b [libc][obvious] Add back the accidentally removed MPFRNumber destructor. 2020-08-25 21:57:46 -07:00
Siva Chandra Reddy 3f4674a557 [libc] Extend MPFRMatcher to handle multiple-input-multiple-output functions.
Tests for frexp[f|l] now use the new capability. Not all input-output
combinations have been addressed by this change. Support for newer combinations
can be added in future as needed.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D86506
2020-08-25 21:42:49 -07:00
Siva Chandra Reddy 87bf0b0ee9 [libc] Add a class called NormalFloat which represents normalized floats.
This class helps in dealing with normal and subnormal numbers uniformly.
Moreover, since this class has been designed to handle all floating
formats across platforms, it helps implement floating point functions in
a uniform manner.

The implementations of frexp and logb have been switched to use this new
class as it allows us to use just one implementation across all
different floating point formats.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D86241
2020-08-20 09:00:35 -07:00
Siva Chandra Reddy ed8982da3e [libc][NFC] Switch math tests to the new ULP based tolerance.
Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D86267
2020-08-20 08:31:31 -07:00
Siva Chandra Reddy e2645488ca [libc][obvious] Fix x86 long double conversion to integer.
Fixes incorrectly constructed ceill tests.
2020-08-19 14:48:55 -07:00
Tue Ly 9887a70e7a [libc] Add ULP function to MPFRNumber class to test correctly rounded functions such as SQRT, FMA.
Add ULP function to MPFRNumber class to test correctly rounded functions.

Differential Revision: https://reviews.llvm.org/D84725
2020-08-18 13:51:58 -04:00
Siva Chandra 578ac8bfa5 [libc][obvious] Remove the unused file utils/CPP/StringRef.h. 2020-08-12 12:19:11 -07:00
Siva Chandra df79e18796 [libc][obvious] Remove a commented out block. 2020-08-11 13:31:17 -07:00
Siva Chandra Reddy db936e0e91 [libc][NFC] Add library of floating point test matchers.
This eliminates UnitTest's dependency on FPUtil and hence prevents
non-math tests from depending indirectly on FPUtil. The patch
essentially moves some of the existing pieces into a library of its own.

Along the way, renamed add_math_unittest to add_fp_unittest.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D85486
2020-08-07 23:34:15 -07:00
cgyurgyik f3b4150255 [libc] Add strspn implementation and std::bitset
Reviewed By: sivachandra, abrachet

Differential Revision: https://reviews.llvm.org/D85103
2020-08-05 16:48:38 -04:00
Siva Chandra Reddy a32af8252f [libc] Add a tool called WrapperGen.
This tool will be used to generate C wrappers for the C++ LLVM libc
implementations. This change does not hook this tool up to anything yet.
However, it can be useful for cases where one does not want to run the
objcopy step (to insert the C symbol in the object file) but can make use
of LTO to eliminate the cost of the additional wrapper call. This can be
relevant for certain downstream platforms. If this tool can benefit other
libc platforms in general, then it can be integrated into the build system
with options to use or not use the wrappers. An example of such a
platform is CUDA.

Reviewed By: abrachet

Differential Revision: https://reviews.llvm.org/D84848
2020-07-30 16:07:26 -07:00
Chris Gyurgyik 33abb7292e
[libc] [obvious] Fix typo in binary header. 2020-07-29 08:18:07 -04:00
Siva Chandra Reddy cd7a5c3cd9 [libc][obvious] Add license headers to APIIndexer.[cpp|h]. 2020-07-28 17:04:03 -07:00
Siva Chandra Reddy 59f17a7d4f [libc][NFC] Move tablegen indexer class into a util library of its own.
This class is currently used by two tools: HdrGen and PrototypeTestGen.
We will be adding more tools based on this class so it is convenient to
keep it in a util library of its own.
2020-07-28 16:35:19 -07:00
Siva Chandra Reddy 9cc70e047c [libc][NFC] Zero out padding bits in the uint form of x86 FPBits<long double>. 2020-07-28 11:59:04 -07:00
Siva Chandra Reddy acca2980a3 [libc][obvious] Move ErrnoSetterMatcher to test/ErrnoSetterMetcher.h. 2020-07-28 11:05:52 -07:00
Tue Ly 4096088e19 [libc] Add implementations of fmax, fmaxf, and fmaxl.
Summary: Add implementations of fmax, fmaxf, and fmaxl.

Reviewers: sivachandra

Subscribers: mgorny, tschuett, libc-commits, ecnelises

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D84385
2020-07-23 15:23:08 -04:00
Tue Ly 7ce32f87f9 Add implementations for fmin, fminf, and fminl. Testing infrastructure update is splitted to https://reviews.llvm.org/D83931. 2020-07-21 17:24:15 -04:00
Tue Ly e138ad41e0 Update Test (EXPECT_EQ and friends) to accept __uint128_t and floating point types (float, double, long double).
Summary: Update Test (EXPECT_EQ and friends) to accept __uint128_t and floating point types (float, double, long double).

Reviewers: sivachandra

Subscribers: mgorny, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D83931
2020-07-21 16:50:45 -04:00
Siva Chandra Reddy 7738c03418 [libc][NFC] Use RemoveCVType to implement IsIntegral and IsPointerType.
Added IsSameV as a convenience variable and used it where convenient.

Reviewers: abrachet, lntue

Differential Revision: https://reviews.llvm.org/D83980
2020-07-17 11:32:50 -07:00
Siva Chandra Reddy f5db2411c2 [libc][Obvious] Cleanup of include lines and target listings in FPUtil. 2020-07-17 00:09:36 -07:00
Siva Chandra Reddy d4adac4832 [libc] Add the remaining long double flavors of nearest integer functions.
Specifically: ceill, floorl and roundl have been added.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D82591
2020-06-25 22:45:05 -07:00
Siva Chandra Reddy a00fb593b4 [libc] Add long double flavors of the floating point manipulation functions.
Specifically: copysignl, frexpl, logbl and modfl have been added.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D82357
2020-06-23 23:46:58 -07:00
Siva Chandra Reddy 987fac79c9 [libc] Match x86 long double NaN classification with that of the compiler.
Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D82330
2020-06-22 23:02:05 -07:00
Siva Chandra Reddy 139018265b [libc] Add implementations long double fabsl and truncl functions.
Current implementations of single precision and double precision
floating point operations operate on bits of the integer type of
same size. The code made use of magic masks which were listed as
literal integer values. This is not possible in the case of long
double type as the mantissa of quad-precision long double type used
on non-x86 architectures is wider that the widest integer type for
which we can list literal values. So, in this patch, to avoid
using magic masks specified with literal values, we use packed
bit-field struct types and let the compiler generate the masks.
This new scheme allows us to implement long double flavors of the
various floating point operations. To keep the size of the patch
small, only the implementations of fabs and trunc have been
switched to the new scheme. In following patches, all exisiting
implementations will be switched to the new scheme.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D82036
2020-06-18 11:08:26 -07:00
Siva Chandra Reddy 438f7fc068 [libc][benchmarks] Link the memory benchmark exes to functions from LLVM libc.
Summary:
To get the target order correct, the benchmarks directory has been moved
one level higher. Previously, it was living in the utils directory. The
utils directory is a collection of utils which are to be used by the
tests and implementations. However, benchmarks *use* the
implementations. So, moving it out of utils helps us setup proper
target level dependencies.

Reviewers: gchatelet

Differential Revision: https://reviews.llvm.org/D81910
2020-06-17 11:42:26 -07:00
Siva Chandra Reddy 6fb7f3a3cf [lib][NFC] Split the floating point util functions into multiple files.
The grouping now reflects the grouping on cppreference.com.
2020-06-15 23:12:00 -07:00
Siva Chandra Reddy 118c13c691 [libc] Add implementation of few floating point manipulation functions.
Implementations of copysign[f], frexp[f], logb[f], and modf[f] are added.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D81134
2020-06-11 12:23:11 -07:00
Siva Chandra Reddy 4be1c116ad [libc] Add implementations of round and roundf.
Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D80779
2020-06-09 23:01:20 -07:00
Paula Toth b836ae24a9 [libc] Add integration tests.
Summary:
This patch aims to add integration tests to check the following:
1) Header files are generated as expected.
2) Libc functions have the correct public name.
3) Libc functions have the correct return type and parameter types.
4) Symbols are exposed in the public lib.a files.

Reviewers: sivachandra, abrachet

Reviewed By: sivachandra

Subscribers: aheejin, ecnelises, dxf, mgorny, jfb, tschuett, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D79192
2020-06-02 12:14:07 -07:00
Paula Toth 1ab092b758 [libc] Expose APIGenerator.
Summary: This is split off from D79192 and exposes APIGenerator (renames to APIIndexer) for use in generating the integrations tests.

Reviewers: sivachandra

Reviewed By: sivachandra

Subscribers: tschuett, ecnelises, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D80832
2020-06-01 12:30:35 -07:00
Siva Chandra Reddy 1caedd0c55 [libc] Add implementations of ceil[f], floor[f] and trunc[f] from math.h.
Reviewers: abrachet

Differential Revision: https://reviews.llvm.org/D80612
2020-06-01 08:36:59 -07:00
Anthony Steinhauser 504d8d9d8a [libc] Fixing the build command for benchmarks.
Building libc without clang fails with:
CMake Error at /home/asteinhauser/llvm-project/libc/CMakeLists.txt:49 (message):
'clang' and 'clang-tools-extra' are required in LLVM_ENABLE_PROJECTS to
lint llvm-libc. The linting step performs important checks to help prevent
the introduction of subtle bugs, but it may increase build times.

Reviewers: sivachandra

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D80495
2020-05-28 11:19:20 -07:00
Siva Chandra Reddy 9f69d3d0bc [libc][NFC][Obvious] Convert the MPFR operations enum to an enum class.
This was suggested in https://reviews.llvm.org/D79149.
2020-05-26 22:26:41 -07:00