Merging r196391:

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r196391 | hliao | 2013-12-04 09:44:22 -0800 (Wed, 04 Dec 2013) | 5 lines

[X86] Check YMM31/ZMM31 as well

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


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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@196653 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/Target/X86/X86VZeroUpper.cpp b/lib/Target/X86/X86VZeroUpper.cpp
index a944652..66ae9c2 100644
--- a/lib/Target/X86/X86VZeroUpper.cpp
+++ b/lib/Target/X86/X86VZeroUpper.cpp
@@ -122,11 +122,11 @@ static bool checkFnHasLiveInYmm(MachineRegisterInfo &MRI) {
 }
 
 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(MachineInstr *MI) {
     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;
     }