Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what
the variable actually tracks.
N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103802 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 422cb7a..8c0a61f 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -28,6 +28,7 @@
#include "llvm/CodeGen/FastISel.h"
#include "llvm/CodeGen/GCStrategy.h"
#include "llvm/CodeGen/GCMetadata.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
@@ -605,6 +606,19 @@
delete Scheduler;
}
+ // Determine if there are any calls in this machine function.
+ MachineFrameInfo *MFI = MF->getFrameInfo();
+ if (!MFI->hasCalls()) {
+ for (MachineBasicBlock::iterator
+ I = BB->begin(), E = BB->end(); I != E; ++I) {
+ const TargetInstrDesc &TID = TM.getInstrInfo()->get(I->getOpcode());
+ if (I->isInlineAsm() || (TID.isCall() && !TID.isReturn())) {
+ MFI->setHasCalls(true);
+ break;
+ }
+ }
+ }
+
// Free the SelectionDAG state, now that we're finished with it.
CurDAG->clear();