Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Analysis/MemorySSA/function-clobber.ll

@@ -1,54 +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
-;
-; Ensuring that external functions without attributes are MemoryDefs
-
-@g = external global i32
-declare void @modifyG()
-
-define i32 @foo() {
-; CHECK: MemoryUse(liveOnEntry)
-; CHECK-NEXT: %1 = load i32
-  %1 = load i32, i32* @g
-
-; CHECK: 1 = MemoryDef(liveOnEntry)
-; CHECK-NEXT: store i32 4
-  store i32 4, i32* @g, align 4
-
-; CHECK: 2 = MemoryDef(1)
-; CHECK-NEXT: call void @modifyG()
-  call void @modifyG()
-
-; CHECK: MemoryUse(2)
-; CHECK-NEXT: %2 = load i32
-  %2 = load i32, i32* @g
-  %3 = add i32 %2, %1
-  ret i32 %3
-}
-
-declare void @readEverything() readonly
-declare void @clobberEverything()
-
-; CHECK-LABEL: define void @bar
-define void @bar() {
-; CHECK: 1 = MemoryDef(liveOnEntry)
-; CHECK-NEXT: call void @clobberEverything()
-  call void @clobberEverything()
-  br i1 undef, label %if.end, label %if.then
-
-if.then:
-; CHECK: MemoryUse(1)
-; CHECK-NEXT: call void @readEverything()
-  call void @readEverything()
-; CHECK: 2 = MemoryDef(1)
-; CHECK-NEXT: call void @clobberEverything()
-  call void @clobberEverything()
-  br label %if.end
-
-if.end:
-; CHECK: 3 = MemoryPhi({%0,1},{if.then,2})
-; CHECK: MemoryUse(3)
-; CHECK-NEXT: call void @readEverything()
-  call void @readEverything()
-  ret void
-}