6b6b4b3d80
- Update to version 13.0.0. * For details, see the release notes: - https://releases.llvm.org/13.0.0/docs/ReleaseNotes.html - https://releases.llvm.org/13.0.0/tools/clang/docs/ReleaseNotes.html - https://releases.llvm.org/13.0.0/tools/clang/tools/extra/docs/ReleaseNotes.html - https://releases.llvm.org/13.0.0/projects/libcxx/docs/ReleaseNotes.html - https://releases.llvm.org/13.0.0/tools/lld/docs/ReleaseNotes.html * New LLVM tools: - llvm-otool: Mach-O object file displaying tool. - llvm-sim: LLVM IR Similarity Visualizer. - llvm-tapi-diff: Diff tool for tbd files. - llvm-windres: Tool to manipulate Windows resources. * llvm-elfabi was removed. * New Clang tools: - clang-repl, an interactive interpreter for C/C++. - intercept-build, analyze-build: the former intercepts build commands to build a compilation database, the latter runs the static analyzer over all translation units. - scan-build-py: Python reimplementation of scan-build. - Rebase patches: * link-clang-shared.patch * llvm-do-not-install-static-libraries.patch * llvm-exegesis-link-dylib.patch - Drop patches that have landed upstream: * tablegen-test-link-static.patch - Run tests on more architectures, disable those that seem to hang. Don't run libcxx tests at all anymore because they take so long. - Relax constraints so that we can build on more machines. OBS-URL: https://build.opensuse.org/request/show/922852 OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/llvm13?expand=0&rev=1
23 lines
795 B
Diff
23 lines
795 B
Diff
Better detect 64bit atomics support.
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It appears that on i586 std::atomic<uint64_t>::load is compiled into
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instruction, but std::atomic<double>::load uses __atomic_load_8. This must
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be detected so the build system links it to libatomic.
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Index: llvm-12.0.0.src/cmake/modules/CheckAtomic.cmake
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===================================================================
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--- llvm-12.0.0.src.orig/cmake/modules/CheckAtomic.cmake
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+++ llvm-12.0.0.src/cmake/modules/CheckAtomic.cmake
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@@ -30,9 +30,12 @@ function(check_working_cxx_atomics64 var
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#include <atomic>
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#include <cstdint>
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std::atomic<uint64_t> x (0);
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+std::atomic<double> y (0);
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int main() {
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uint64_t i = x.load(std::memory_order_relaxed);
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+ double j = y.load(std::memory_order_relaxed);
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(void)i;
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+ (void)j;
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return 0;
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}
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" ${varname})
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