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| author | Bill Wendling <isanbard@gmail.com> | 2010-07-09 19:44:12 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2010-07-09 19:44:12 +0000 |
| commit | 8886c495a33703d8bd8319d16b62645cee4dd546 (patch) | |
| tree | 4e26fa93380b2cf7dfa299d87d9284b4d61fe4e6 /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | |
| parent | f870e566eeb30a3c85aeb45d9713f9a59f58d878 (diff) | |
Clarify what mysterious check means.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108005 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 5eb1a003bc..43ef9a1cac 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -300,6 +300,9 @@ bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) { for (MachineBasicBlock::const_iterator II = MBB->begin(), IE = MBB->end(); II != IE; ++II) { const TargetInstrDesc &TID = TM.getInstrInfo()->get(II->getOpcode()); + + // Operand 1 of an inline asm instruction indicates whether the asm + // needs stack or not. if ((II->isInlineAsm() && II->getOperand(1).getImm()) || (TID.isCall() && !TID.isReturn())) { MFI->setHasCalls(true); |