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rename SafeToDestroyConstant to isSafeToDestroyConstant and clang-format.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192907 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2013-10-17 18:06:32 +00:00
parent 4a7cef2202
commit 9bb874cea2
1 changed files with 12 additions and 10 deletions
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22
lib/Transforms/IPO/GlobalOpt.cpp
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@ -168,17 +168,19 @@ static AtomicOrdering StrongerOrdering(AtomicOrdering X, AtomicOrdering Y) {
return (AtomicOrdering)std::max(X, Y);
}
/// SafeToDestroyConstant - It is safe to destroy a constant iff it is only used
/// by constants itself. Note that constants cannot be cyclic, so this test is
/// pretty easy to implement recursively.
/// It is safe to destroy a constant iff it is only used by constants itself.
/// Note that constants cannot be cyclic, so this test is pretty easy to
/// implement recursively.
///
static bool SafeToDestroyConstant(const Constant *C) {
if (isa<GlobalValue>(C)) return false;
static bool isSafeToDestroyConstant(const Constant *C) {
if (isa<GlobalValue>(C))
return false;
for (Value::const_use_iterator UI = C->use_begin(), E = C->use_end(); UI != E;
++UI)
if (const Constant *CU = dyn_cast<Constant>(*UI)) {
if (!SafeToDestroyConstant(CU)) return false;
if (!isSafeToDestroyConstant(CU))
return false;
} else
return false;
return true;
@ -288,7 +290,7 @@ static bool analyzeGlobalAux(const Value *V, GlobalStatus &GS,
} else if (const Constant *C = dyn_cast<Constant>(U)) {
GS.HasNonInstructionUser = true;
// We might have a dead and dangling constant hanging off of here.
if (!SafeToDestroyConstant(C))
if (!isSafeToDestroyConstant(C))
return true;
} else {
GS.HasNonInstructionUser = true;
@ -442,7 +444,7 @@ static bool CleanupPointerRootUsers(GlobalVariable *GV,
Changed = true;
}
} else if (Constant *C = dyn_cast<Constant>(U)) {
if (SafeToDestroyConstant(C)) {
if (isSafeToDestroyConstant(C)) {
C->destroyConstant();
// This could have invalidated UI, start over from scratch.
Dead.clear();
@ -542,7 +544,7 @@ static bool CleanupConstantGlobalUsers(Value *V, Constant *Init,
} else if (Constant *C = dyn_cast<Constant>(U)) {
// If we have a chain of dead constantexprs or other things dangling from
// us, and if they are all dead, nuke them without remorse.
if (SafeToDestroyConstant(C)) {
if (isSafeToDestroyConstant(C)) {
C->destroyConstant();
CleanupConstantGlobalUsers(V, Init, TD, TLI);
return true;
@ -557,7 +559,7 @@ static bool CleanupConstantGlobalUsers(Value *V, Constant *Init,
static bool isSafeSROAElementUse(Value *V) {
// We might have a dead and dangling constant hanging off of here.
if (Constant *C = dyn_cast<Constant>(V))
return SafeToDestroyConstant(C);
return isSafeToDestroyConstant(C);
Instruction *I = dyn_cast<Instruction>(V);
if (!I) return false;