[EarlyCSE] Add testcase for masked loads and stores, NFC

Author: Krzysztof Parzyszek

llvm/test/Transforms/EarlyCSE/masked-intrinsics.ll

@@ -0,0 +1,45 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S -early-cse < %s | FileCheck %s
+
+define <128 x i8> @f0(<128 x i8>* %a0, <128 x i8> %a1, <128 x i8> %a2) {
+; CHECK-LABEL: @f0(
+; CHECK-NEXT:    [[V0:%.*]] = icmp eq <128 x i8> [[A1:%.*]], [[A2:%.*]]
+; CHECK-NEXT:    call void @llvm.masked.store.v128i8.p0v128i8(<128 x i8> [[A1]], <128 x i8>* [[A0:%.*]], i32 4, <128 x i1> [[V0]])
+; CHECK-NEXT:    [[V1:%.*]] = call <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>* [[A0]], i32 4, <128 x i1> [[V0]], <128 x i8> undef)
+; CHECK-NEXT:    ret <128 x i8> [[V1]]
+;
+  %v0 = icmp eq <128 x i8> %a1, %a2
+  call void @llvm.masked.store.v128i8.p0v128i8(<128 x i8> %a1, <128 x i8>* %a0, i32 4, <128 x i1> %v0)
+  %v1 = call <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>* %a0, i32 4, <128 x i1> %v0, <128 x i8> undef)
+  ret <128 x i8> %v1
+}
+
+define <128 x i8> @f1(<128 x i8>* %a0, <128 x i8> %a1, <128 x i8> %a2) {
+; CHECK-LABEL: @f1(
+; CHECK-NEXT:    [[V0:%.*]] = icmp eq <128 x i8> [[A1:%.*]], [[A2:%.*]]
+; CHECK-NEXT:    [[V1:%.*]] = call <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>* [[A0:%.*]], i32 4, <128 x i1> [[V0]], <128 x i8> undef)
+; CHECK-NEXT:    call void @llvm.masked.store.v128i8.p0v128i8(<128 x i8> [[V1]], <128 x i8>* [[A0]], i32 4, <128 x i1> [[V0]])
+; CHECK-NEXT:    ret <128 x i8> [[V1]]
+;
+  %v0 = icmp eq <128 x i8> %a1, %a2
+  %v1 = call <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>* %a0, i32 4, <128 x i1> %v0, <128 x i8> undef)
+  call void @llvm.masked.store.v128i8.p0v128i8(<128 x i8> %v1, <128 x i8>* %a0, i32 4, <128 x i1> %v0)
+  ret <128 x i8> %v1
+}
+
+define <128 x i8> @f2(<128 x i8>* %a0, <128 x i8> %a1, <128 x i8> %a2) {
+; CHECK-LABEL: @f2(
+; CHECK-NEXT:    [[V0:%.*]] = icmp eq <128 x i8> [[A1:%.*]], [[A2:%.*]]
+; CHECK-NEXT:    [[V1:%.*]] = call <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>* [[A0:%.*]], i32 4, <128 x i1> [[V0]], <128 x i8> undef)
+; CHECK-NEXT:    [[V3:%.*]] = add <128 x i8> [[V1]], [[V1]]
+; CHECK-NEXT:    ret <128 x i8> [[V3]]
+;
+  %v0 = icmp eq <128 x i8> %a1, %a2
+  %v1 = call <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>* %a0, i32 4, <128 x i1> %v0, <128 x i8> undef)
+  %v2 = call <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>* %a0, i32 4, <128 x i1> %v0, <128 x i8> undef)
+  %v3 = add <128 x i8> %v1, %v2
+  ret <128 x i8> %v3
+}
+
+declare <128 x i8> @llvm.masked.load.v128i8.p0v128i8(<128 x i8>*, i32, <128 x i1>, <128 x i8>)
+declare void @llvm.masked.store.v128i8.p0v128i8(<128 x i8>, <128 x i8>*, i32, <128 x i1>)