[llvm] c15e5bd - [InstCombine] add vector test for mask of add; NFC

[Sanjay Patel via llvm-commits]

Author: Sanjay Patel
Date: 2020-11-17T12:13:45-05:00
New Revision: c15e5bdfb7b95aa90ceb059501da679ca2f931db

URL: https://github.com/llvm/llvm-project/commit/c15e5bdfb7b95aa90ceb059501da679ca2f931db
DIFF: https://github.com/llvm/llvm-project/commit/c15e5bdfb7b95aa90ceb059501da679ca2f931db.diff

LOG: [InstCombine] add vector test for mask of add; NFC

Added: 
    

Modified: 
    llvm/test/Transforms/InstCombine/and.ll

Removed: 
    


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diff  --git a/llvm/test/Transforms/InstCombine/and.ll b/llvm/test/Transforms/InstCombine/and.ll
index 554024eff9ef..ec45b5183e70 100644
--- a/llvm/test/Transforms/InstCombine/and.ll
+++ b/llvm/test/Transforms/InstCombine/and.ll
@@ -1085,6 +1085,19 @@ define i8 @lowmask_add_2_uses(i8 %x) {
   ret i8 %r
 }
 
+define <2 x i8> @lowmask_add_2_splat(<2 x i8> %x, <2 x i8>* %p) {
+; CHECK-LABEL: @lowmask_add_2_splat(
+; CHECK-NEXT:    [[A:%.*]] = add <2 x i8> [[X:%.*]], <i8 -64, i8 -64>
+; CHECK-NEXT:    store <2 x i8> [[A]], <2 x i8>* [[P:%.*]], align 2
+; CHECK-NEXT:    [[R:%.*]] = and <2 x i8> [[A]], <i8 63, i8 63>
+; CHECK-NEXT:    ret <2 x i8> [[R]]
+;
+  %a = add <2 x i8> %x, <i8 -64, i8 -64> ; 0xc0
+  store <2 x i8> %a, <2 x i8>* %p
+  %r = and <2 x i8> %a, <i8 63, i8 63> ; 0x3f
+  ret <2 x i8> %r
+}
+
 define i8 @not_lowmask_add(i8 %x) {
 ; CHECK-LABEL: @not_lowmask_add(
 ; CHECK-NEXT:    [[A:%.*]] = add i8 [[X:%.*]], -64