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Rather than having special rules like "intrinsics cannot

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throw exceptions", just mark intrinsics with the nounwind
attribute.  Likewise, mark intrinsics as readnone/readonly
and get rid of special aliasing logic (which didn't use
anything more than this anyway).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44544 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
2007-12-03 20:06:50 +00:00
parent 4cf4b69330
commit a3355ffb3d
22 changed files with 136 additions and 146 deletions
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30
include/llvm/Instructions.h
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@ -927,6 +927,21 @@ public:
/// @brief Determine whether the call or the callee has the given attribute.
bool paramHasAttr(uint16_t i, ParameterAttributes attr) const;
/// @brief Determine if the call does not access memory.
bool doesNotAccessMemory() const {
return paramHasAttr(0, ParamAttr::ReadNone);
}
/// @brief Determine if the call does not access or only reads memory.
bool onlyReadsMemory() const {
return doesNotAccessMemory() || paramHasAttr(0, ParamAttr::ReadOnly);
}
/// @brief Determine if the call cannot unwind.
bool isNoUnwind() const {
return paramHasAttr(0, ParamAttr::NoUnwind);
}
/// @brief Determine if the call returns a structure.
bool isStructReturn() const {
// Be friendly and also check the callee.
@ -1711,6 +1726,21 @@ public:
/// @brief Determine whether the call or the callee has the given attribute.
bool paramHasAttr(uint16_t i, ParameterAttributes attr) const;
/// @brief Determine if the call does not access memory.
bool doesNotAccessMemory() const {
return paramHasAttr(0, ParamAttr::ReadNone);
}
/// @brief Determine if the call does not access or only reads memory.
bool onlyReadsMemory() const {
return doesNotAccessMemory() || paramHasAttr(0, ParamAttr::ReadOnly);
}
/// @brief Determine if the call cannot unwind.
bool isNoUnwind() const {
return paramHasAttr(0, ParamAttr::NoUnwind);
}
/// @brief Determine if the call returns a structure.
bool isStructReturn() const {
// Be friendly and also check the callee.