[test-suite] r374155 - [test-suite] Add GCC C Torture Suite
Sam Elliott via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 9 03:50:44 PDT 2019
Author: lenary
Date: Wed Oct 9 03:50:44 2019
New Revision: 374155
URL: http://llvm.org/viewvc/llvm-project?rev=374155&view=rev
Log:
[test-suite] Add GCC C Torture Suite
Summary:
This patch adds support for testing clang/LLVM against the GCC Torture
suite.
This patch adds the CMake configuration and licence information for these tests. A follow-up patch will add the testcases themselves (which are too large to review, and included without modifications). They will be committed together.
Reviewers: hfinkel, kristof.beyls, asb
Reviewed By: kristof.beyls
Subscribers: khcheang, mehdi_amini, jvesely, krytarowski, fedor.sergeev, zzheng, steven_wu, dexonsmith, arphaman, jfb, mstorsjo, lewis-revill, simoncook, s.egerton, riccibruno, asb, mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66887
Added:
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/README
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING3
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/ieee/
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt
test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/lit.local.cfg
Modified:
test-suite/trunk/LICENSE.TXT
test-suite/trunk/SingleSource/Regression/C/CMakeLists.txt
Modified: test-suite/trunk/LICENSE.TXT
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/LICENSE.TXT?rev=374155&r1=374154&r2=374155&view=diff
==============================================================================
--- test-suite/trunk/LICENSE.TXT (original)
+++ test-suite/trunk/LICENSE.TXT Wed Oct 9 03:50:44 2019
@@ -304,6 +304,7 @@ zlib: llvm-test/MultiSourc
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):
Modified: test-suite/trunk/SingleSource/Regression/C/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/CMakeLists.txt?rev=374155&r1=374154&r2=374155&view=diff
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/CMakeLists.txt (original)
+++ test-suite/trunk/SingleSource/Regression/C/CMakeLists.txt Wed Oct 9 03:50:44 2019
@@ -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-")
Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/CMakeLists.txt Wed Oct 9 03:50:44 2019
@@ -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
Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/README
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/README?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/README (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/README Wed Oct 9 03:50:44 2019
@@ -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.
Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/CMakeLists.txt Wed Oct 9 03:50:44 2019
@@ -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 <inttypes.h> -
+ # 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()
Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING Wed Oct 9 03:50:44 2019
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
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Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING3
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING3?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING3 (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/COPYING3 Wed Oct 9 03:50:44 2019
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
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+ Nothing in this License shall be construed as excluding or limiting
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+
+ 12. No Surrender of Others' Freedom.
+
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+ 13. Use with the GNU Affero General Public License.
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+
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+
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+
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+
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+
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+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
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+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
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+Also add information on how to contact you by electronic and paper mail.
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+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ 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
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+
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+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
+<http://www.gnu.org/licenses/>.
+
+ 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
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+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/LICENSE.TXT Wed Oct 9 03:50:44 2019
@@ -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.
Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeLists.txt Wed Oct 9 03:50:44 2019
@@ -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()
Added: test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/lit.local.cfg
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/lit.local.cfg?rev=374155&view=auto
==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/lit.local.cfg (added)
+++ test-suite/trunk/SingleSource/Regression/C/gcc-c-torture/lit.local.cfg Wed Oct 9 03:50:44 2019
@@ -0,0 +1 @@
+config.traditional_output = False
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