[llvm] ed7479b - [X86] Update type actions for ISD::TRUNCATE with avx512f to be Legal when possible. NFCI

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2020-04-30T23:27:29-07:00
New Revision: ed7479b63553f0cb00d9e954fa3fadd4a1e389e1

URL: https://github.com/llvm/llvm-project/commit/ed7479b63553f0cb00d9e954fa3fadd4a1e389e1
DIFF: https://github.com/llvm/llvm-project/commit/ed7479b63553f0cb00d9e954fa3fadd4a1e389e1.diff

LOG: [X86] Update type actions for ISD::TRUNCATE with avx512f to be Legal when possible. NFCI

The Custom handler wasn't doing anything for these cases anyway.

Added: 
    

Modified: 
    llvm/lib/Target/X86/X86ISelLowering.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index aacc725b29f5..86d756dbd189 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -1525,18 +1525,18 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM,
       }
     }
 
-    setOperationAction(ISD::TRUNCATE,           MVT::v8i32, Custom);
-    setOperationAction(ISD::TRUNCATE,           MVT::v16i16, Custom);
-    setOperationAction(ISD::TRUNCATE,           MVT::v32i8, Custom);
-    setOperationAction(ISD::ZERO_EXTEND,        MVT::v32i16, Custom);
-    setOperationAction(ISD::ZERO_EXTEND,        MVT::v16i32, Custom);
-    setOperationAction(ISD::ZERO_EXTEND,        MVT::v8i64, Custom);
-    setOperationAction(ISD::ANY_EXTEND,         MVT::v32i16, Custom);
-    setOperationAction(ISD::ANY_EXTEND,         MVT::v16i32, Custom);
-    setOperationAction(ISD::ANY_EXTEND,         MVT::v8i64, Custom);
-    setOperationAction(ISD::SIGN_EXTEND,        MVT::v32i16, Custom);
-    setOperationAction(ISD::SIGN_EXTEND,        MVT::v16i32, Custom);
-    setOperationAction(ISD::SIGN_EXTEND,        MVT::v8i64, Custom);
+    setOperationAction(ISD::TRUNCATE,    MVT::v8i32,  Legal);
+    setOperationAction(ISD::TRUNCATE,    MVT::v16i16, Legal);
+    setOperationAction(ISD::TRUNCATE,    MVT::v32i8,  HasBWI ? Legal : Custom);
+    setOperationAction(ISD::ZERO_EXTEND, MVT::v32i16, Custom);
+    setOperationAction(ISD::ZERO_EXTEND, MVT::v16i32, Custom);
+    setOperationAction(ISD::ZERO_EXTEND, MVT::v8i64,  Custom);
+    setOperationAction(ISD::ANY_EXTEND,  MVT::v32i16, Custom);
+    setOperationAction(ISD::ANY_EXTEND,  MVT::v16i32, Custom);
+    setOperationAction(ISD::ANY_EXTEND,  MVT::v8i64,  Custom);
+    setOperationAction(ISD::SIGN_EXTEND, MVT::v32i16, Custom);
+    setOperationAction(ISD::SIGN_EXTEND, MVT::v16i32, Custom);
+    setOperationAction(ISD::SIGN_EXTEND, MVT::v8i64,  Custom);
 
     if (HasBWI) {
       // Extends from v64i1 masks to 512-bit vectors.