Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/test/Analysis/MemorySSA/lifetime-simple.ll

@@ -1,30 +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
-; This test checks a number of things:
-; First, the lifetime markers should not clobber any uses of Q or P.
-; Second, the loads of P are MemoryUse(LiveOnEntry) due to the placement of the markers vs the loads.
-
-define i8 @test(i8* %P, i8* %Q) {
-entry:
-; CHECK:  1 = MemoryDef(liveOnEntry)
-; CHECK-NEXT:   call void @llvm.lifetime.start.p0i8(i64 32, i8* %P)
-  call void @llvm.lifetime.start.p0i8(i64 32, i8* %P)
-; CHECK:  MemoryUse(1)
-; CHECK-NEXT:   %0 = load i8, i8* %P
-  %0 = load i8, i8* %P
-; CHECK:  2 = MemoryDef(1)
-; CHECK-NEXT:   store i8 1, i8* %P
-  store i8 1, i8* %P
-; CHECK:  3 = MemoryDef(2)
-; CHECK-NEXT:   call void @llvm.lifetime.end.p0i8(i64 32, i8* %P)
-  call void @llvm.lifetime.end.p0i8(i64 32, i8* %P)
-; CHECK:  MemoryUse(liveOnEntry)
-; CHECK-NEXT:   %1 = load i8, i8* %P
-  %1 = load i8, i8* %P
-; CHECK:  MemoryUse(2)
-; CHECK-NEXT:   %2 = load i8, i8* %Q
-  %2 = load i8, i8* %Q
-  ret i8 %1
-}
-declare void @llvm.lifetime.start.p0i8(i64 %S, i8* nocapture %P) readonly
-declare void @llvm.lifetime.end.p0i8(i64 %S, i8* nocapture %P)