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59 lines
3.5 KiB
Diff
59 lines
3.5 KiB
Diff
Clang 3.9 regression causes a bug when generating code for
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std::atomic_compare_and_exchange*(std::atomic<long long>,...) without
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optimizations. If same code is compiled with -O2 tests pass without problems.
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Atomics are implement in headers with builtin functions which makes this
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affect application code instead of libc++ library code.
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libcxx tests default to -O0 compilation so these test need to be marked failing
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on arm to allow installing packages. Use cases is so borderline failure that it
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shouldn't prevent building the package. (64bit atomics in 32bit mode)
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Index: llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_strong.pass.cpp
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===================================================================
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--- llvm-toolchain-snapshot_7~svn337372.orig/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_strong.pass.cpp
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+++ llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_strong.pass.cpp
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@@ -8,6 +8,7 @@
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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+// XFAIL: arm
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// ... assertion fails line 34
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// <atomic>
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Index: llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_strong_explicit.pass.cpp
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===================================================================
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--- llvm-toolchain-snapshot_7~svn337372.orig/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_strong_explicit.pass.cpp
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+++ llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_strong_explicit.pass.cpp
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@@ -8,6 +8,7 @@
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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+// XFAIL: arm
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// ... assertion fails line 38
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// <atomic>
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Index: llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_weak.pass.cpp
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===================================================================
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--- llvm-toolchain-snapshot_7~svn337372.orig/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_weak.pass.cpp
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+++ llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_weak.pass.cpp
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@@ -8,6 +8,7 @@
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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+// XFAIL: arm
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// ... assertion fails line 34
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// <atomic>
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Index: llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_weak_explicit.pass.cpp
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===================================================================
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--- llvm-toolchain-snapshot_7~svn337372.orig/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_weak_explicit.pass.cpp
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+++ llvm-toolchain-snapshot_7~svn337372/libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_compare_exchange_weak_explicit.pass.cpp
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@@ -8,6 +8,7 @@
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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+// XFAIL: arm
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// ... assertion fails line 38
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// <atomic>
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