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Fix problem with inserting FunctionPasses that depend on ImmutablePasses

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(e.g., LICM) into FunctionPassManagers. The problem is that we were
using a C-style cast to cast required analysis passes to PassClass*, but
if it's a FunctionPassManager, and the required analysis pass is an
ImmutablePass, the types aren't really compatible, so the C-style cast
causes a crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15140 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2004-07-23 19:35:50 +00:00
parent aa14147cd6
commit 7ff4006f82
1 changed files with 12 additions and 4 deletions
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16
lib/VMCore/PassManagerT.h
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@ -454,8 +454,12 @@ public:
// Loop over all of the analyses used by this pass,
for (std::vector<AnalysisID>::const_iterator I = Required.begin(),
E = Required.end(); I != E; ++I) {
if (getAnalysisOrNullDown(*I) == 0)
add((PassClass*)(*I)->createPass());
if (getAnalysisOrNullDown(*I) == 0) {
Pass *AP = (*I)->createPass();
if (ImmutablePass *IP = dynamic_cast<ImmutablePass *> (AP)) { add(IP); }
else if (PassClass *RP = dynamic_cast<PassClass *> (AP)) { add(RP); }
else { assert (0 && "Wrong kind of pass for this PassManager"); }
}
}
// Tell the pass to add itself to this PassManager... the way it does so
@ -477,8 +481,12 @@ public:
// Loop over all of the analyses used by this pass,
for (std::vector<AnalysisID>::const_iterator I = Required.begin(),
E = Required.end(); I != E; ++I) {
if (getAnalysisOrNullDown(*I) == 0)
add((PassClass*)(*I)->createPass());
if (getAnalysisOrNullDown(*I) == 0) {
Pass *AP = (*I)->createPass();
if (ImmutablePass *IP = dynamic_cast<ImmutablePass *> (AP)) add(IP);
else if (PassClass *RP = dynamic_cast<PassClass *> (AP)) add(RP);
else assert (0 && "Wrong kind of pass for this PassManager");
}
}
// Add the ImmutablePass to this PassManager.