diff options
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp b/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp index 20e1467b30c3..c2ad9db81cfd 100644 --- a/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp +++ b/lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp @@ -194,6 +194,10 @@ void llvm::calculateDbgValueHistory(const MachineFunction *MF, // some variables. for (const MachineOperand &MO : MI.operands()) { if (MO.isReg() && MO.isDef() && MO.getReg()) { + // Ignore call instructions that claim to clobber SP. The AArch64 + // backend does this for aggregate function arguments. + if (MI.isCall() && MO.getReg() == SP) + continue; // If this is a virtual register, only clobber it since it doesn't // have aliases. if (TRI->isVirtualRegister(MO.getReg())) |