[ARM] MVE integer min and max

This simply makes the MVE integer min and max instructions legal and adds the
relevant patterns for them.

Differential Revision: https://reviews.llvm.org/D64026

llvm-svn: 366004

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 2d8fadb7241..e538353fc76 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -250,6 +250,10 @@ void ARMTargetLowering::addMVEVectorTypes(bool HasMVEFP) {
     setOperationAction(ISD::INSERT_VECTOR_ELT, VT, Custom);
     setOperationAction(ISD::EXTRACT_VECTOR_ELT, VT, Custom);
     setOperationAction(ISD::BUILD_VECTOR, VT, Custom);
+    setOperationAction(ISD::SMIN, VT, Legal);
+    setOperationAction(ISD::SMAX, VT, Legal);
+    setOperationAction(ISD::UMIN, VT, Legal);
+    setOperationAction(ISD::UMAX, VT, Legal);
 
     // No native support for these.
     setOperationAction(ISD::UDIV, VT, Expand);