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path: root/test/CodeGen/X86/2012-01-10-UndefExceptionEdge.ll
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* TBAA: remove !tbaa from testing cases if not used.Manman Ren2013-04-30
| | | | | | | | This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180796 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix undefined code and reenable test case.Jakob Stoklund Olesen2012-01-11
| | | | | | | I don't think the compact encoding code is right, but at least is has defined behavior now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147938 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable test that seems to expose an unrelated Linux issue.Jakob Stoklund Olesen2012-01-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147921 91177308-0d34-0410-b5e6-96231b3b80d8
* Detect when a value is undefined on an edge to a landing pad.Jakob Stoklund Olesen2012-01-11
Consider this code: int h() { int x; try { x = f(); g(); } catch (...) { return x+1; } return x; } The variable x is undefined on the first edge to the landing pad, but it has the f() return value on the second edge to the landing pad. SplitAnalysis::getLastSplitPoint() would assume that the return value from f() was live into the landing pad when f() throws, which is of course impossible. Detect these cases, and treat them as if the landing pad wasn't there. This allows spill code to be inserted after the function call to f(). <rdar://problem/10664933> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147912 91177308-0d34-0410-b5e6-96231b3b80d8