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-rw-r--r--lib/Target/X86/X86VZeroUpper.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/X86/X86VZeroUpper.cpp b/lib/Target/X86/X86VZeroUpper.cpp
index f8c30eb..2fd78a7 100644
--- a/lib/Target/X86/X86VZeroUpper.cpp
+++ b/lib/Target/X86/X86VZeroUpper.cpp
@@ -145,7 +145,7 @@ bool VZeroUpperInserter::runOnMachineFunction(MachineFunction &MF) {
// to insert any VZEROUPPER instructions. This is constant-time, so it is
// cheap in the common case of no ymm use.
bool YMMUsed = false;
- TargetRegisterClass *RC = X86::VR256RegisterClass;
+ const TargetRegisterClass *RC = X86::VR256RegisterClass;
for (TargetRegisterClass::iterator i = RC->begin(), e = RC->end();
i != e; i++) {
if (MRI.isPhysRegUsed(*i)) {