mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 21:29:20 +00:00
Implement Transforms/Inline/inline-tail.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21736 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
2f4251bfbe
commit
1b49141821
@ -46,6 +46,12 @@ bool llvm::InlineFunction(CallSite CS) {
|
||||
CalledFunc->isExternal() || // call, or call to a vararg function!
|
||||
CalledFunc->getFunctionType()->isVarArg()) return false;
|
||||
|
||||
|
||||
// If the call to the callee is a non-tail call, we must clear the 'tail'
|
||||
// flags on any calls that we inline.
|
||||
bool MustClearTailCallFlags =
|
||||
isa<CallInst>(TheCall) || !cast<CallInst>(TheCall)->isTailCall();
|
||||
|
||||
BasicBlock *OrigBB = TheCall->getParent();
|
||||
Function *Caller = OrigBB->getParent();
|
||||
|
||||
@ -101,6 +107,15 @@ bool llvm::InlineFunction(CallSite CS) {
|
||||
}
|
||||
}
|
||||
|
||||
// If we are inlining tail call instruction through an invoke or
|
||||
if (MustClearTailCallFlags) {
|
||||
for (Function::iterator BB = FirstNewBlock, E = Caller->end();
|
||||
BB != E; ++BB)
|
||||
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I)
|
||||
if (CallInst *CI = dyn_cast<CallInst>(I))
|
||||
CI->setTailCall(false);
|
||||
}
|
||||
|
||||
// If we are inlining for an invoke instruction, we must make sure to rewrite
|
||||
// any inlined 'unwind' instructions into branches to the invoke exception
|
||||
// destination, and call instructions into invoke instructions.
|
||||
@ -124,7 +139,7 @@ bool llvm::InlineFunction(CallSite CS) {
|
||||
// require no special handling...
|
||||
if (CallInst *CI = dyn_cast<CallInst>(I)) {
|
||||
// Convert this function call into an invoke instruction... if it's
|
||||
// not an intrinsic function call (which are known to not throw).
|
||||
// not an intrinsic function call (which are known to not unwind).
|
||||
if (CI->getCalledFunction() &&
|
||||
CI->getCalledFunction()->getIntrinsicID()) {
|
||||
++I;
|
||||
|
Loading…
Reference in New Issue
Block a user