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Add the sentinal "no handle" value to the ResumeInst.

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A value of -1 at a call site tells the personality function that this call isn't
handled by the current function. Since the ResumeInsts are converted to calls to
_Unwind_SjLj_Resume, add a (volatile) store of -1 to its 'call site'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138416 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-08-24 00:00:23 +00:00
parent fc8713ff74
commit 3ae96d69ef
1 changed files with 2 additions and 0 deletions
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2
lib/CodeGen/SjLjEHPrepare.cpp
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@ -631,6 +631,8 @@ bool SjLjEHPass::insertSjLjEHSupport(Function &F) {
if (Callee != SelectorFn && Callee != ExceptionFn
&& !CI->doesNotThrow())
insertCallSiteStore(CI, -1, CallSite);
} else if (ResumeInst *RI = dyn_cast<ResumeInst>(I)) {
insertCallSiteStore(RI, -1, CallSite);
}
}