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Stop calling DwarfEHPrepare from WinEHPrepare

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Instead, run both EH preparation passes, and have them both ignore
functions with unrecognized EH personalities. Pass delegation involved
some hacky code for creating an AnalysisResolver that we don't need now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231995 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
2015-03-12 00:36:20 +00:00
parent 9a062b62a7
commit 7dedaabcae
6 changed files with 50 additions and 54 deletions
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26
include/llvm/Analysis/LibCallSemantics.h
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@ -181,7 +181,31 @@ class InvokeInst;
/// \brief Returns true if this personality function catches asynchronous
/// exceptions.
bool isAsynchronousEHPersonality(EHPersonality Pers);
inline bool isAsynchronousEHPersonality(EHPersonality Pers) {
// The two SEH personality functions can catch asynch exceptions. We assume
// unknown personalities don't catch asynch exceptions.
switch (Pers) {
case EHPersonality::MSVC_X86SEH:
case EHPersonality::MSVC_Win64SEH:
return true;
default: return false;
}
llvm_unreachable("invalid enum");
}
/// \brief Returns true if this is an MSVC personality function.
inline bool isMSVCEHPersonality(EHPersonality Pers) {
// The two SEH personality functions can catch asynch exceptions. We assume
// unknown personalities don't catch asynch exceptions.
switch (Pers) {
case EHPersonality::MSVC_CXX:
case EHPersonality::MSVC_X86SEH:
case EHPersonality::MSVC_Win64SEH:
return true;
default: return false;
}
llvm_unreachable("invalid enum");
}
bool canSimplifyInvokeNoUnwind(const InvokeInst *II);