Index: LICENSE.TXT =================================================================== --- LICENSE.TXT +++ LICENSE.TXT @@ -304,6 +304,7 @@ Rodinia: llvm-test/MultiSource/Benchmarks/Rodinia Rodinia: llvm-test/MultiSource/Benchmarks/Rodinia Rodinia: llvm-test/MultiSource/Benchmarks/Rodinia +gcc-c-torture: llvm-test/SingleSource/Regression/C/gcc-c-torture/execute ============================================================================== Legacy LLVM License (ttps://llvm.org/docs/DeveloperPolicy.html#legacy): Index: SingleSource/Regression/C/CMakeLists.txt =================================================================== --- SingleSource/Regression/C/CMakeLists.txt +++ SingleSource/Regression/C/CMakeLists.txt @@ -1,2 +1,6 @@ +if(ARCH MATCHES "x86" OR ARCH MATCHES "riscv") + add_subdirectory(gcc-c-torture) +endif() + list(APPEND LDFLAGS -lm) llvm_singlesource(PREFIX "Regression-C-") Index: SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt =================================================================== --- SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt +++ SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt @@ -0,0 +1,62 @@ +# The following cause errors if they are passed to clang via CFLAGS +set(CLANG_ERRORING_CFLAGS + "-fno-early-inlining" + "-fno-ira-share-spill-slots" + "-ftree-loop-distribution" + "-fno-tree-bit-ccp" + "-fno-tree-coalesce-vars" +) + +# This pulls out options in dg-options into `${Variable}` +function(gcc_torture_dg_options_cflags Variable File) + # Some files have dg-options which we need to pick up. These should be in + # the first line but often aren't. + # + # We also need to be careful not to pick up target-specific dg-options. + set(DG_CFLAGS) + + file(STRINGS ${File} FileLines) + foreach(FileLine ${FileLines}) + # Looking for `dg-options "..."` or `dg-additional-options "..."` without + # `{ target` afterwards (ignoring spaces). + if(FileLine MATCHES "dg-(additional-)?options ({ )?\"([^\"]*)\"( })?(.*)") + # This is needed to turn the string into a list of CFLAGS + separate_arguments(FILE_CFLAGS UNIX_COMMAND ${CMAKE_MATCH_3}) + # This does the negative lookahead for `{ target` anywhere in the rest of + # the line + if(NOT ${CMAKE_MATCH_5} MATCHES "{ +target") + list(APPEND DG_CFLAGS ${FILE_CFLAGS}) + endif() + endif() + endforeach() + + # Remove any flags that will make clang error + list(REMOVE_ITEM DG_CFLAGS ${CLANG_ERRORING_CFLAGS}) + + # Set the parent scope variable + set(${Variable} ${DG_CFLAGS} PARENT_SCOPE) +endfunction() + +function(gcc_torture_execute_test File) + cmake_parse_arguments(_TORTURE "" "PREFIX" "CFLAGS;LDFLAGS" ${ARGN}) + # There are a few tests with duplicate filenames, and CMake wants all target + # names to be unique, so we add a disambiguator to the target name. The + # disambiguator is based upon the directory structure, swapping `/` for `-`. + get_filename_component(Name ${File} NAME_WE) + set(_target "${_TORTURE_PREFIX}-${Name}") + + gcc_torture_dg_options_cflags(DG_CFLAGS ${File}) + + # Add any flags that were requested + list(APPEND CFLAGS ${DG_CFLAGS} ${_TORTURE_CFLAGS}) + list(APPEND LDFLAGS ${_TORTURE_LDFLAGS}) + + llvm_test_executable_no_test(${_target} ${File}) + llvm_test_run() + + llvm_add_test_for_target(${_target}) +endfunction() + +file(COPY lit.local.cfg DESTINATION "${CMAKE_CURRENT_BINARY_DIR}") + +add_subdirectory(execute) \ No newline at end of file Index: SingleSource/Regression/C/gcc-c-torture/README =================================================================== --- SingleSource/Regression/C/gcc-c-torture/README +++ SingleSource/Regression/C/gcc-c-torture/README @@ -0,0 +1,17 @@ +# GCC C Torture Suite + +This directory contains a checkout of +svn://gcc.gnu.org/svn/gcc/trunk/gcc/testsuite/gcc.c-torture/execute . + +Last checked at SVN version 275024 + +CMake Build configuration added by the LLVM project. The tests in +`execute/builtins` are not run, and each CMakeLists.txt contains a list of tests +to skip. These are both general and architecture-specific. + +There are not Makefiles for this part of the test suite. + +# Platform-specific concerns: + +RISC-V: The list of tests to exclude on RISC-V was devised using glibc and qemu. +You may have to exclude additional tests when running with newlib and/or spike. Index: SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt =================================================================== --- SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt +++ SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt @@ -0,0 +1,278 @@ +add_subdirectory(ieee) + +# GCC C Torture Suite is conventionally run without warnings +list(APPEND CFLAGS "-w") + +set(TestsToSkip) + +## +## Main Test Blacklist for Clang +## + +# Tests with features unsupported by Clang (usually GCC extensions) +# (Big list of naughty tests) +file(GLOB UnsupportedTests CONFIGURE_DEPENDS + # GCC Extension: Nested functions + 20000822-1.c + 20010209-1.c + 20010605-1.c + 20030501-1.c + 20040520-1.c + 20061220-1.c + 20090219-1.c + 920415-1.c + 920428-2.c + 920501-7.c + 920612-2.c + 920721-4.c + 921017-1.c + 921215-1.c + 931002-1.c + comp-goto-2.c + nest-align-1.c + nest-stdar-1.c + nestfunc-1.c + nestfunc-2.c + nestfunc-3.c + nestfunc-5.c + nestfunc-6.c + nestfunc-7.c + pr22061-3.c + pr22061-4.c + pr24135.c + pr51447.c + pr71494.c + + # Variable length arrays in structs + 20020412-1.c + 20040308-1.c + 20040423-1.c + 20041218-2.c + 20070919-1.c + align-nest.c + pr41935.c + pr82210.c + + # Initialization of flexible array member + pr28865.c + + # GCC Extension: __builtin_* + 20071018-1.c # __builtin_malloc + 20071120-1.c # __builtin_malloc + builtin-bitops-1.c # __builtin_clrsb, __builtin_clrsbl, __builtin_clrsbll + pr36765.c # __builtin_malloc + pr39228.c # __builtin_isinff, __builtin_isinfl + pr43008.c # __builtin_malloc + pr47237.c # __builtin_apply, __builtin_apply_args + pr78586.c # __builtin_sprintf + pr79327.c # __builtin_sprintf + pr84339.c # __builtin_malloc, __builtin_free + pr84478.c # __builtin_malloc + pr85331.c # __builtin_shuffle + strlen-7.c # __builtin_malloc + va-arg-pack-1.c # __builtin_va_arg_pack + + # Clang does not support 'DD' suffix on floating constant + pr80692.c + + # Test requires compiler to recognise llabs without including - + # clang will only recognise this function if the header is included. + 20021127-1.c + + # Tests __attribute__((noinit)) + noinit-attribute.c + + # We are unable to parse the dg-additional-options for this test, which is + # required for it to work (we discard any with `target`, but we need the + # define for this test) + 20101011-1.c + + # The following rely on C Undefined Behavior + + # Test relies on UB around (float)INT_MAX + 20031003-1.c + + # UB: Expects very specific behavior around setjmp/longjmp and allocas, which + # clang is not obliged to replicate. + pr64242.c + + # The following all expect very specific optimiser behavior from the compiler + + # __builtin_return_address(n) with n > 0 not guaranteed to give expected result + 20010122-1.c + + # Expects gnu89 inline behavior + 20001121-1.c + 20020107-1.c + 930526-1.c + 961223-1.c + 980608-1.c + bcp-1.c + loop-2c.c + p18298.c + restrict-1.c + unroll-1.c + va-arg-7.c + va-arg-8.c + + # Clang at O0 does not work out the code referencing the undefined symbol can + # never be executed + medce-1.c + + # Expects that function is always inlined + 990208-1.c + + # pragma optimize("-option") is ignored by Clang + alias-1.c + pr79043.c + + # The following all expect very specific optimiser behavior from the compiler + # around __printf_chk and friends. + fprintf-chk-1.c + printf-chk-1.c + vfprintf-chk-1.c + vprintf-chk-1.c + +) +list(APPEND TestsToSkip ${UnsupportedTests}) + +# Tests where clang currently has bugs or issues +file(GLOB FailingTests CONFIGURE_DEPENDS + + # Handling of bitfields is different between clang and GCC: + # http://lists.llvm.org/pipermail/llvm-dev/2017-October/118507.html + # https://gcc.gnu.org/ml/gcc/2017-10/msg00192.html + # http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1260.htm + bitfld-3.c + bitfld-5.c + pr32244-1.c + pr34971.c + + # This causes a stacktrace on x86 in X86TargetLowering::LowerCallTo + pr84169.c + + # clang complains the array is too large + 991014-1.c + + # __builtin_setjmp/__builtin_longjmp are interacting badly with optimisation + pr60003.c +) +list(APPEND TestsToSkip ${FailingTests}) + +## +## Tests that require extra CFLAGS in Clang +## + +# Tests that require -fwrapv +file(GLOB TestRequiresFWrapV CONFIGURE_DEPENDS + # Test relies on undefined signed overflow behavior (int foo - INT_MIN). + 20040409-1.c + 20040409-2.c + 20040409-3.c +) + +# Tests that require -Wno-return-type +file(GLOB TestRequiresWNoReturnType CONFIGURE_DEPENDS + # Non-void function must return a value + 920302-1.c + 920501-3.c + 920728-1.c +) + +# Tests that require libm (-lm ldflag) +file(GLOB TestRequiresLibM CONFIGURE_DEPENDS + 980709-1.c + float-floor.c +) + +# Tests that require newnlib Nano IO (--undefined=_printf_float ldflag) +file(GLOB TestRequiresNanoIO CONFIGURE_DEPENDS + 920501-8.c + 930513-1.c +) + +## +## Architecture-specific Test Blacklists +## + + +# Tests that require mmap +include(CheckSymbolExists) +CHECK_SYMBOL_EXISTS("mmap" "sys/types.h;sys/mman.h" HAVE_MMAP) +if (NOT HAVE_MMAP) + file(GLOB MMapTests + loop-2f.c + loop-2g.c + ) + list(APPEND TestsToSkip ${MMapTests}) +endif() + +# x86-only Tests +if(NOT ARCH MATCHES "x86") + file(GLOB X86OnlyTests CONFIGURE_DEPENDS + 990413-2.c + ) + + list(APPEND TestsToSkip ${X86OnlyTests}) +endif() + +# RISC-V Test Blacklist +if(ARCH MATCHES "riscv") + file(GLOB RISCVTestsToSkip CONFIGURE_DEPENDS + # No backend support for __builtin_longjmp/__builtin_setjmp + built-in-setjmp.c + pr84521.c + ) + + # RISC-V 32-bit Test Blacklist + if (ARCH MATCHES "riscv32") + file(GLOB RISCV32TestsToSkip CONFIGURE_DEPENDS + # No support for __int128 on rv32 + pr84748.c + ) + + list(APPEND RISCVTestsToSkip ${RISCV32TestsToSkip}) + endif() + + list(APPEND TestsToSkip ${RISCVTestsToSkip}) +endif() + +## +## Test target setup +## + +file(GLOB TestFiles CONFIGURE_DEPENDS + *.c +) +foreach(TestToSkip ${TestsToSkip}) + list(REMOVE_ITEM TestFiles ${TestToSkip}) +endforeach() + +foreach(File ${TestFiles}) + set(MaybeCFlags) + set(MaybeLDFlags) + + # Add Test-specific CFLAGS/LDFLAGS here + + if(${File} IN_LIST TestRequiresLibM) + list(APPEND MaybeLDFlags "-lm") + endif() + + if(${File} IN_LIST TestRequiresWNoReturnType) + list(APPEND MaybeCFlags "-Wno-return-type") + endif() + + if(${File} IN_LIST TestRequiresFWrapV) + list(APPEND MaybeCFlags "-fwrapv") + endif() + + if(${File} IN_LIST TestRequiresNanoIO) + list(APPEND MaybeLDFlags "-Wl,-u,_printf_float") + endif() + + # Add Test Target + gcc_torture_execute_test(${File} + PREFIX "GCC-C-execute" + CFLAGS ${MaybeCFlags} + LDFLAGS ${MaybeLDFlags}) +endforeach() Index: SingleSource/Regression/C/gcc-c-torture/execute/COPYING =================================================================== --- SingleSource/Regression/C/gcc-c-torture/execute/COPYING +++ SingleSource/Regression/C/gcc-c-torture/execute/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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Index: SingleSource/Regression/C/gcc-c-torture/execute/COPYING3 =================================================================== --- SingleSource/Regression/C/gcc-c-torture/execute/COPYING3 +++ SingleSource/Regression/C/gcc-c-torture/execute/COPYING3 @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. Index: SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT =================================================================== --- SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT +++ SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT @@ -0,0 +1,2 @@ +The testcases in this directory are covered by the GPL. See the files whose +names start with COPYING for copying permission. Index: SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt =================================================================== --- SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt +++ SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt @@ -0,0 +1,73 @@ +# GCC C Torture Suite is conventionally run without warnings +list(APPEND CFLAGS "-w") + +set(TestsToSkip) + +## +## Main Test Blacklist for Clang +## + +# Tests with features unsupported by Clang (usually GCC extensions) +# (Big list of naughty tests) +file(GLOB UnsupportedTests + CONFIGURE_DEPENDS + + # The following all expect very specific optimiser behavior from the compiler + + # Clang at O0 does not work out the code referencing the undefined symbol can + # never be executed + fp-cmp-7.c +) +list(APPEND TestsToSkip ${UnsupportedTests}) + +## +## Tests that require extra CFLAGS in Clang +## + +# Tests that require libm (-lm flag) +file(GLOB TestRequiresLibM CONFIGURE_DEPENDS + 20041213-1.c + mzero4.c +) + +# Tests that require -fno-trapping-math +file(GLOB TestRequiresFNoTrappingMath CONFIGURE_DEPENDS + # Needs additional flags from compare-fp-3.x + compare-fp-3.c +) + +## +## Architecture-specific Test Blacklists +## + +## +## Test target setup +## + +file(GLOB TestFiles CONFIGURE_DEPENDS + *.c +) +foreach(TestToSkip ${TestsToSkip}) + list(REMOVE_ITEM TestFiles ${TestToSkip}) +endforeach() + +foreach(File ${TestFiles}) + set(MaybeCFlags) + set(MaybeLDFlags) + + # Add Test-specific CFLAGS/LDFLAGS here + + if (${File} IN_LIST TestRequiresLibM) + list(APPEND MaybeLDFlags "-lm") + endif() + + if (${File} IN_LIST TestRequiresFNoTrappingMath) + list(APPEND MaybeCFlags "-fno-trapping-math") + endif() + + # Add Test Target + gcc_torture_execute_test(${File} + PREFIX "GCC-C-execute-ieee" + CFLAGS ${MaybeCFlags} + LDFLAGS ${MaybeLDFlags}) +endforeach() Index: SingleSource/Regression/C/gcc-c-torture/lit.local.cfg =================================================================== --- SingleSource/Regression/C/gcc-c-torture/lit.local.cfg +++ SingleSource/Regression/C/gcc-c-torture/lit.local.cfg @@ -0,0 +1 @@ +config.traditional_output = False