diff options
Diffstat (limited to 'lib/Target/X86/X86VZeroUpper.cpp')
| -rw-r--r-- | lib/Target/X86/X86VZeroUpper.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/X86/X86VZeroUpper.cpp b/lib/Target/X86/X86VZeroUpper.cpp index d4341b9..0bb5f99 100644 --- a/lib/Target/X86/X86VZeroUpper.cpp +++ b/lib/Target/X86/X86VZeroUpper.cpp @@ -14,7 +14,6 @@ // //===----------------------------------------------------------------------===// -#define DEBUG_TYPE "x86-vzeroupper" #include "X86.h" #include "X86InstrInfo.h" #include "X86Subtarget.h" @@ -28,6 +27,8 @@ #include "llvm/Target/TargetInstrInfo.h" using namespace llvm; +#define DEBUG_TYPE "x86-vzeroupper" + STATISTIC(NumVZU, "Number of vzeroupper instructions inserted"); namespace { @@ -246,7 +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(); |