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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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13
lib/VMCore/Instructions.cpp
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@@ -53,7 +53,18 @@ bool CallSite::paramHasAttr(uint16_t i, ParameterAttributes attr) const {
else
return cast<InvokeInst>(I)->paramHasAttr(i, attr);
}
bool CallSite::doesNotAccessMemory() const {
if (CallInst *CI = dyn_cast<CallInst>(I))
return CI->doesNotAccessMemory();
else
return cast<InvokeInst>(I)->doesNotAccessMemory();
}
bool CallSite::onlyReadsMemory() const {
if (CallInst *CI = dyn_cast<CallInst>(I))
return CI->onlyReadsMemory();
else
return cast<InvokeInst>(I)->onlyReadsMemory();
}