Add !DoesKMove test

Author: arsenm

llvm/test/Transforms/EarlyCSE/noalias-addrspace.ll

@@ -0,0 +1,73 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -passes='early-cse<memssa>' -S < %s | FileCheck %s
+
+declare void @use(i1)
+declare void @use.ptr(ptr) memory(read)
+
+define void @load_first_noalias_addrspace(ptr %p) {
+; CHECK-LABEL: define void @load_first_noalias_addrspace(
+; CHECK-SAME: ptr [[P:%.*]]) {
+; CHECK-NEXT:    [[V1:%.*]] = load ptr, ptr [[P]], align 8, !nonnull [[META0:![0-9]+]], !noundef [[META0]], !noalias.addrspace [[META1:![0-9]+]]
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    ret void
+;
+  %v1 = load ptr, ptr %p, !nonnull !{}, !noundef !{}, !noalias.addrspace !0
+  call void @use.ptr(ptr %v1)
+  %v2 = load ptr, ptr %p
+  call void @use.ptr(ptr %v2)
+  ret void
+}
+
+define void @load_both_same_noalias_addrspace(ptr %p) {
+; CHECK-LABEL: define void @load_both_same_noalias_addrspace(
+; CHECK-SAME: ptr [[P:%.*]]) {
+; CHECK-NEXT:    [[V1:%.*]] = load ptr, ptr [[P]], align 8, !nonnull [[META0]], !noundef [[META0]], !noalias.addrspace [[META1]]
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    ret void
+;
+  %v1 = load ptr, ptr %p, !nonnull !{}, !noundef !{}, !noalias.addrspace !0
+  call void @use.ptr(ptr %v1)
+  %v2 = load ptr, ptr %p, !noalias.addrspace !0
+  call void @use.ptr(ptr %v2)
+  ret void
+}
+
+define void @load_both_disjoint_noalias_addrspace(ptr %p) {
+; CHECK-LABEL: define void @load_both_disjoint_noalias_addrspace(
+; CHECK-SAME: ptr [[P:%.*]]) {
+; CHECK-NEXT:    [[V1:%.*]] = load ptr, ptr [[P]], align 8, !nonnull [[META0]], !noundef [[META0]], !noalias.addrspace [[META1]]
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    ret void
+;
+  %v1 = load ptr, ptr %p, !nonnull !{}, !noundef !{}, !noalias.addrspace !0
+  call void @use.ptr(ptr %v1)
+  %v2 = load ptr, ptr %p, !noalias.addrspace !1
+  call void @use.ptr(ptr %v2)
+  ret void
+}
+
+define void @load_both_overlap_noalias_addrspace(ptr %p) {
+; CHECK-LABEL: define void @load_both_overlap_noalias_addrspace(
+; CHECK-SAME: ptr [[P:%.*]]) {
+; CHECK-NEXT:    [[V1:%.*]] = load ptr, ptr [[P]], align 8, !nonnull [[META0]], !noundef [[META0]], !noalias.addrspace [[META1]]
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    call void @use.ptr(ptr [[V1]])
+; CHECK-NEXT:    ret void
+;
+  %v1 = load ptr, ptr %p, !nonnull !{}, !noundef !{}, !noalias.addrspace !0
+  call void @use.ptr(ptr %v1)
+  %v2 = load ptr, ptr %p, !noalias.addrspace !2
+  call void @use.ptr(ptr %v2)
+  ret void
+}
+
+!0 = !{i32 5, i32 6}
+!1 = !{i32 7, i32 8}
+!2 = !{i32 5, i32 7}
+;.
+; CHECK: [[META0]] = !{}
+; CHECK: [[META1]] = !{i32 5, i32 6}
+;.