diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-06-03 15:20:36 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-06-03 15:20:36 +0000 |
| commit | d288ef4c1788d3a951a7558c68312c2d320612b1 (patch) | |
| tree | ece909a5200f95f85f0813599a9500620f4d9217 /lib/CodeGen/AsmPrinter | |
| parent | f382538d471e38a9b98f016c4caebd24c8d60b62 (diff) | |
Notes
Diffstat (limited to 'lib/CodeGen/AsmPrinter')
| -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())) |