diff options
Diffstat (limited to 'include/llvm/Analysis/EHPersonalities.h')
| -rw-r--r-- | include/llvm/Analysis/EHPersonalities.h | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/include/llvm/Analysis/EHPersonalities.h b/include/llvm/Analysis/EHPersonalities.h index 2c45ab4693e6..fe0e65b828ca 100644 --- a/include/llvm/Analysis/EHPersonalities.h +++ b/include/llvm/Analysis/EHPersonalities.h @@ -32,10 +32,11 @@ enum class EHPersonality { MSVC_Win64SEH, MSVC_CXX, CoreCLR, - Rust + Rust, + Wasm_CXX }; -/// \brief See if the given exception handling personality function is one +/// See if the given exception handling personality function is one /// that we understand. If so, return a description of it; otherwise return /// Unknown. EHPersonality classifyEHPersonality(const Value *Pers); @@ -44,7 +45,7 @@ StringRef getEHPersonalityName(EHPersonality Pers); EHPersonality getDefaultEHPersonality(const Triple &T); -/// \brief Returns true if this personality function catches asynchronous +/// Returns true if this personality function catches asynchronous /// exceptions. inline bool isAsynchronousEHPersonality(EHPersonality Pers) { // The two SEH personality functions can catch asynch exceptions. We assume @@ -59,7 +60,7 @@ inline bool isAsynchronousEHPersonality(EHPersonality Pers) { llvm_unreachable("invalid enum"); } -/// \brief Returns true if this is a personality function that invokes +/// Returns true if this is a personality function that invokes /// handler funclets (which must return to it). inline bool isFuncletEHPersonality(EHPersonality Pers) { switch (Pers) { @@ -74,7 +75,23 @@ inline bool isFuncletEHPersonality(EHPersonality Pers) { llvm_unreachable("invalid enum"); } -/// \brief Return true if this personality may be safely removed if there +/// Returns true if this personality uses scope-style EH IR instructions: +/// catchswitch, catchpad/ret, and cleanuppad/ret. +inline bool isScopedEHPersonality(EHPersonality Pers) { + switch (Pers) { + case EHPersonality::MSVC_CXX: + case EHPersonality::MSVC_X86SEH: + case EHPersonality::MSVC_Win64SEH: + case EHPersonality::CoreCLR: + case EHPersonality::Wasm_CXX: + return true; + default: + return false; + } + llvm_unreachable("invalid enum"); +} + +/// Return true if this personality may be safely removed if there /// are no invoke instructions remaining in the current function. inline bool isNoOpWithoutInvoke(EHPersonality Pers) { switch (Pers) { @@ -91,7 +108,7 @@ bool canSimplifyInvokeNoUnwind(const Function *F); typedef TinyPtrVector<BasicBlock *> ColorVector; -/// \brief If an EH funclet personality is in use (see isFuncletEHPersonality), +/// If an EH funclet personality is in use (see isFuncletEHPersonality), /// this will recompute which blocks are in which funclet. It is possible that /// some blocks are in multiple funclets. Consider this analysis to be /// expensive. |