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in -std=gnu++11 mode.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154654 91177308-0d34-0410-b5e6-96231b3b80d8
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a type specifier and can be combined with unsigned. This allows libstdc++4.7 to
be used with clang in c++98 mode.
Several other changes are still required for libstdc++4.7 to work with clang in
c++11 mode.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153999 91177308-0d34-0410-b5e6-96231b3b80d8
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Conditionally include headers which older STL implementations don't provide.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150526 91177308-0d34-0410-b5e6-96231b3b80d8
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temporary objects and local variables. When detected, these split the
block, marking the new one as having only the exit block as a successor.
This prevents a large number of false positives in warnings sensitive to
no-return constructs such as -Wreturn-type, and fixes the remainder of
PR10063 along with several variations of this bug that had not been
reported. The test cases are extended across the board to cover these
patterns.
This also checks in a stress test for these types of CFGs. The stress
test declares some 32k variables, a mixture of no-return and normal
destructors. Previously, this resulted in roughly 2500 CFG blocks, but
didn't model any of the no-return destructors. With this patch, it
results in over 33k blocks, many of them now unreachable.
The nice thing about how the analyzer is set up? This causes *no*
regression in performance of building the CFG. It actually in some cases
makes it faster, as best I can benchmark. The analysis for -Wreturn-type
(and any other that cares about no-return code paths) is technically
slower now as it has to look at many more candidate blocks, but it
computes the correct answer. I have more test cases to follow, I think
they all work now. Also I have further work that should dramatically
simplify analyses in the presence of no-return.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139586 91177308-0d34-0410-b5e6-96231b3b80d8
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preprocessor to build up very large CFGs in various shapes that can
produce different algorithmic behavior in CFG-walking code.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134698 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83042 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62997 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40138 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39734 91177308-0d34-0410-b5e6-96231b3b80d8
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