Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

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

@@ -1,93 +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
-;
-; Ensures that volatile stores/loads count as MemoryDefs
-
-; CHECK-LABEL: define i32 @foo
-define i32 @foo() {
-  %1 = alloca i32, align 4
-; CHECK: 1 = MemoryDef(liveOnEntry)
-; CHECK-NEXT: store volatile i32 4
-  store volatile i32 4, i32* %1, align 4
-; CHECK: 2 = MemoryDef(1)
-; CHECK-NEXT: store volatile i32 8
-  store volatile i32 8, i32* %1, align 4
-; CHECK: 3 = MemoryDef(2)
-; CHECK-NEXT: %2 = load volatile i32
-  %2 = load volatile i32, i32* %1, align 4
-; CHECK: 4 = MemoryDef(3)
-; CHECK-NEXT: %3 = load volatile i32
-  %3 = load volatile i32, i32* %1, align 4
-  %4 = add i32 %3, %2
-  ret i32 %4
-}
-
-; Ensuring we allow hoisting nonvolatile loads around volatile loads.
-; CHECK-LABEL define void @volatile_only
-define void @volatile_only(i32* %arg1, i32* %arg2) {
-  ; Trivially NoAlias/MustAlias
-  %a = alloca i32
-  %b = alloca i32
-
-; CHECK: 1 = MemoryDef(liveOnEntry)
-; CHECK-NEXT: load volatile i32, i32* %a
-  load volatile i32, i32* %a
-; CHECK: MemoryUse(liveOnEntry)
-; CHECK-NEXT: load i32, i32* %b
-  load i32, i32* %b
-; CHECK: MemoryUse(liveOnEntry)
-; CHECK-NEXT: load i32, i32* %a
-  load i32, i32* %a
-
-  ; MayAlias
-; CHECK: 2 = MemoryDef(1)
-; CHECK-NEXT: load volatile i32, i32* %arg1
-  load volatile i32, i32* %arg1
-; CHECK: MemoryUse(liveOnEntry)
-; CHECK-NEXT: load i32, i32* %arg2
-  load i32, i32* %arg2
-
-  ret void
-}
-
-; Ensuring that volatile atomic operations work properly.
-; CHECK-LABEL define void @volatile_atomics
-define void @volatile_atomics(i32* %arg1, i32* %arg2) {
-  %a = alloca i32
-  %b = alloca i32
-
- ; Trivially NoAlias/MustAlias
-
-; CHECK: 1 = MemoryDef(liveOnEntry)
-; CHECK-NEXT: load atomic volatile i32, i32* %a acquire, align 4
-  load atomic volatile i32, i32* %a acquire, align 4
-; CHECK: MemoryUse(1)
-; CHECK-NEXT: load i32, i32* %b
-  load i32, i32* %b
-
-; CHECK: 2 = MemoryDef(1)
-; CHECK-NEXT: load atomic volatile i32, i32* %a monotonic, align 4
-  load atomic volatile i32, i32* %a monotonic, align 4
-; CHECK: MemoryUse(1)
-; CHECK-NEXT: load i32, i32* %b
-  load i32, i32* %b
-; CHECK: MemoryUse(1)
-; CHECK-NEXT: load atomic i32, i32* %b unordered, align 4
-  load atomic i32, i32* %b unordered, align 4
-; CHECK: MemoryUse(1)
-; CHECK-NEXT: load atomic i32, i32* %a unordered, align 4
-  load atomic i32, i32* %a unordered, align 4
-; CHECK: MemoryUse(1)
-; CHECK-NEXT: load i32, i32* %a
-  load i32, i32* %a
-
-  ; MayAlias
-; CHECK: 3 = MemoryDef(2)
-; CHECK-NEXT: load atomic volatile i32, i32* %arg1 monotonic, align 4
-  load atomic volatile i32, i32* %arg1 monotonic, align 4
-; CHECK: MemoryUse(1)
-; CHECK-NEXT: load i32, i32* %arg2
-  load i32, i32* %arg2
-
-  ret void
-}