[llvm] r196391 - [X86] Check YMM31/ZMM31 as well

[Michael Liao]

Author: hliao
Date: Wed Dec  4 11:44:22 2013
New Revision: 196391

URL: http://llvm.org/viewvc/llvm-project?rev=196391&view=rev
Log:
[X86] Check YMM31/ZMM31 as well

- No test case as there's no calling convention preserve YMM31/ZMM31 only


Modified:
    llvm/trunk/lib/Target/X86/X86VZeroUpper.cpp

Modified: llvm/trunk/lib/Target/X86/X86VZeroUpper.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86VZeroUpper.cpp?rev=196391&r1=196390&r2=196391&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86VZeroUpper.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86VZeroUpper.cpp Wed Dec  4 11:44:22 2013
@@ -122,11 +122,11 @@ static bool checkFnHasLiveInYmm(MachineR
 }
 
 static bool clobbersAllYmmRegs(const MachineOperand &MO) {
-  for (unsigned reg = X86::YMM0; reg < X86::YMM31; ++reg) {
+  for (unsigned reg = X86::YMM0; reg <= X86::YMM31; ++reg) {
     if (!MO.clobbersPhysReg(reg))
       return false;
   }
-  for (unsigned reg = X86::ZMM0; reg < X86::ZMM31; ++reg) {
+  for (unsigned reg = X86::ZMM0; reg <= X86::ZMM31; ++reg) {
     if (!MO.clobbersPhysReg(reg))
       return false;
   }
@@ -155,11 +155,11 @@ static bool clobbersAnyYmmReg(MachineIns
     const MachineOperand &MO = MI->getOperand(i);
     if (!MO.isRegMask())
       continue;
-    for (unsigned reg = X86::YMM0; reg < X86::YMM31; ++reg) {
+    for (unsigned reg = X86::YMM0; reg <= X86::YMM31; ++reg) {
       if (MO.clobbersPhysReg(reg))
         return true;
     }
-    for (unsigned reg = X86::ZMM0; reg < X86::ZMM31; ++reg) {
+    for (unsigned reg = X86::ZMM0; reg <= X86::ZMM31; ++reg) {
       if (MO.clobbersPhysReg(reg))
         return true;
     }