[x86] enable machine combiner reassociations for 128-bit vector min/max

llvm-svn: 245715

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp
index 3732823f167..d964bf17a0f 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.cpp
+++ b/llvm/lib/Target/X86/X86InstrInfo.cpp
@@ -6394,12 +6394,20 @@ static bool isAssociativeAndCommutative(const MachineInstr &Inst) {
   // Normal min/max instructions are not commutative because of NaN and signed
   // zero semantics, but these are. Thus, there's no need to check for global
   // relaxed math; the instructions themselves have the properties we need.
+  case X86::MAXCPDrr:
+  case X86::MAXCPSrr:
   case X86::MAXCSDrr:
   case X86::MAXCSSrr:
+  case X86::MINCPDrr:
+  case X86::MINCPSrr:
   case X86::MINCSDrr:
   case X86::MINCSSrr:
+  case X86::VMAXCPDrr:
+  case X86::VMAXCPSrr:
   case X86::VMAXCSDrr:
   case X86::VMAXCSSrr:
+  case X86::VMINCPDrr:
+  case X86::VMINCPSrr:
   case X86::VMINCSDrr:
   case X86::VMINCSSrr:
     return true;