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2012-02-16Elide copy construction in new expressions. PR11757.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10Whenever explicitly activating or deactivating a cleanup, weJohn McCall
need to provide a 'dominating IP' which is guaranteed to dominate the (de)activation point but which cannot be avoided along any execution path from the (de)activation point to the push-point of the cleanup. Using the entry block is bad mojo. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144276 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Rearrange code so that we pass the right pointer to delete[] when an ↵Eli Friedman
exception is thrown constructing the array elements in an array new expression. Fixes PR10870. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139158 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26An initialization does not alias.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138624 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26The allocated exception slot does not alias anything; should fix self-host.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11Simplify EH control flow by observing that EH scopes form a simpleJohn McCall
hierarchy of delegation, and that EH selector values are meaningful function-wide (good thing, too, or inlining wouldn't work). 2,3d 1a hierarchy of delegation and that EH selector values have the same meaning everywhere in the function instead of being meaningful only in the context of a specific selector. This removes the need for routing edges through EH cleanups, since a cleanup simply always branches to its enclosing scope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137293 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28Convert Clang over to resuming from landing pads with llvm.eh.resume.John McCall
It's quite likely that this will explode, but I need to know how. :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132269 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07The conditional needs to be pushed before the branch. Make the test lessJohn McCall
trivial to check this. Adjust for style. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127151 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07An operator new with an empty exception specifier returns null on a badJohn McCall
allocation and therefore requires a null-check. We were doing that, but we weren't treating the new-initializer as being conditionally executed, which means it was possible to get ill-formed IR as in PR9298. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127147 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Add -fcxx-exceptions to all tests that use C++ exceptions.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126599 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25Tame an assert; the scope depth of a jump destination does notJohn McCall
necessarily enclose the innermost normal cleanup depth, because the top of the jump scope stack might be an EH cleanup or EH scope. Fixes PR9303. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126472 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Save a copy expression for non-trivial copy constructions of catch variables.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125661 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Fix some obvious bugs in the conditional-cleanup code and then make theJohn McCall
dtor cleanup use it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124309 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-17When emitting a new-expression inside a conditional expression,John McCall
the cleanup might not be dominated by the allocation code. In this case, we have to store aside all the delete arguments in case we need them later. There's room for optimization here in cases where we end up not actually needing the cleanup in different branches (or being able to pop it after the initialization code). Also make sure we only call this operator delete along the path where we actually allocated something. Fixes rdar://problem/8439196. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14Implement the EH cleanup to call 'operator delete' if a new-expression throwsJohn McCall
(but not if destructors associated with the full-expression throw). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.Daniel Dunbar
- This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-11When an exception needs to be freed by calling __cxa_exception_free, make ↵Anders Carlsson
sure to stash away the exception pointer somewhere. This fixes an "Instruction does not dominate all uses!" verification error when compiling TableGen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91084 91177308-0d34-0410-b5e6-96231b3b80d8
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