diff options
Diffstat (limited to 'lib/Target/X86/X86VZeroUpper.cpp')
| -rw-r--r-- | lib/Target/X86/X86VZeroUpper.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/X86/X86VZeroUpper.cpp b/lib/Target/X86/X86VZeroUpper.cpp index 945ea3e881..0bb5f990ca 100644 --- a/lib/Target/X86/X86VZeroUpper.cpp +++ b/lib/Target/X86/X86VZeroUpper.cpp @@ -247,7 +247,8 @@ void VZeroUpperInserter::processBasicBlock(MachineBasicBlock &MBB) { /// runOnMachineFunction - Loop over all of the basic blocks, inserting /// vzero upper instructions before function calls. bool VZeroUpperInserter::runOnMachineFunction(MachineFunction &MF) { - if (MF.getTarget().getSubtarget<X86Subtarget>().hasAVX512()) + const X86Subtarget &ST = MF.getTarget().getSubtarget<X86Subtarget>(); + if (!ST.hasAVX() || ST.hasAVX512()) return false; TII = MF.getTarget().getInstrInfo(); MachineRegisterInfo &MRI = MF.getRegInfo(); |