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Replace the -unwind-tables option with a per function flag. This is more

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LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132033 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2011-05-25 03:44:17 +00:00
parent 053546c31e
commit fc2bb8c444
14 changed files with 48 additions and 28 deletions
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16
include/llvm/Function.h
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@ -253,6 +253,22 @@ public:
else removeFnAttr(Attribute::NoUnwind);
}
/// @brief True if the ABI mandates this function be in a unwind table.
bool hasUWTable() const {
return hasFnAttr(Attribute::UWTable);
}
void setHasUWTable(bool HasUWTable = true) {
if (HasUWTable)
addFnAttr(Attribute::UWTable);
else
removeFnAttr(Attribute::UWTable);
}
/// @brief True if this function needs in a unwind table.
bool needsUnwindTableEntry() const {
return hasUWTable() || !doesNotThrow();
}
/// @brief Determine if the function returns a structure through first
/// pointer argument.
bool hasStructRetAttr() const {