Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Analysis/MemorySSA/many-doms.ll

@@ -1,67 +0,0 @@
-; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s
-; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s
-;
-; Testing many dominators, specifically from a switch statement in C.
-
-declare i1 @getBool() readnone
-
-define i32 @foo(i32* %p) {
-entry:
-  br label %loopbegin
-
-loopbegin:
-; CHECK: 7 = MemoryPhi({entry,liveOnEntry},{sw.epilog,6})
-; CHECK-NEXT: %n =
-  %n = phi i32 [ 0, %entry ], [ %1, %sw.epilog ]
-  %m = alloca i32, align 4
-  switch i32 %n, label %sw.default [
-    i32 0, label %sw.bb
-    i32 1, label %sw.bb1
-    i32 2, label %sw.bb2
-    i32 3, label %sw.bb3
-  ]
-
-sw.bb:
-; CHECK: 1 = MemoryDef(7)
-; CHECK-NEXT: store i32 1
-  store i32 1, i32* %m, align 4
-  br label %sw.epilog
-
-sw.bb1:
-; CHECK: 2 = MemoryDef(7)
-; CHECK-NEXT: store i32 2
-  store i32 2, i32* %m, align 4
-  br label %sw.epilog
-
-sw.bb2:
-; CHECK: 3 = MemoryDef(7)
-; CHECK-NEXT: store i32 3
-  store i32 3, i32* %m, align 4
-  br label %sw.epilog
-
-sw.bb3:
-; CHECK: 4 = MemoryDef(7)
-; CHECK-NEXT: store i32 4
-  store i32 4, i32* %m, align 4
-  br label %sw.epilog
-
-sw.default:
-; CHECK: 5 = MemoryDef(7)
-; CHECK-NEXT: store i32 5
-  store i32 5, i32* %m, align 4
-  br label %sw.epilog
-
-sw.epilog:
-; CHECK: 8 = MemoryPhi({sw.default,5},{sw.bb,1},{sw.bb1,2},{sw.bb2,3},{sw.bb3,4})
-; CHECK-NEXT: MemoryUse(8)
-; CHECK-NEXT: %0 =
-  %0 = load i32, i32* %m, align 4
-; CHECK: 6 = MemoryDef(8)
-; CHECK-NEXT: %1 =
-  %1 = load volatile i32, i32* %p, align 4
-  %2 = icmp eq i32 %0, %1
-  br i1 %2, label %exit, label %loopbegin
-
-exit:
-  ret i32 %1
-}