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; RUN: opt -basic-aa -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
;
; Test that various function attributes give us sane results.
@g = external global i32
declare void @readonlyFunction() readonly
declare void @noattrsFunction()
define void @readonlyAttr() {
; CHECK: 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT: store i32 0
store i32 0, i32* @g, align 4
%1 = alloca i32, align 4
; CHECK: 2 = MemoryDef(1)
; CHECK-NEXT: store i32 0
store i32 0, i32* %1, align 4
; CHECK: MemoryUse(1)
; CHECK-NEXT: call void @readonlyFunction()
call void @readonlyFunction()
; CHECK: MemoryUse(1)
; CHECK-NEXT: call void @noattrsFunction() #
; Assume that #N is readonly
call void @noattrsFunction() readonly
; Sanity check that noattrsFunction is otherwise a MemoryDef
; CHECK: 3 = MemoryDef(2)
; CHECK-NEXT: call void @noattrsFunction()
call void @noattrsFunction()
ret void
}
declare void @argMemOnly(i32*) argmemonly
define void @inaccessableOnlyAttr() {
%1 = alloca i32, align 4
; CHECK: 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT: store i32 0
store i32 0, i32* %1, align 4
; CHECK: 2 = MemoryDef(1)
; CHECK-NEXT: store i32 0
store i32 0, i32* @g, align 4
; CHECK: MemoryUse(1)
; CHECK-NEXT: call void @argMemOnly(i32* %1) #
; Assume that #N is readonly
call void @argMemOnly(i32* %1) readonly
; CHECK: 3 = MemoryDef(2)
; CHECK-NEXT: call void @argMemOnly(i32* %1)
call void @argMemOnly(i32* %1)
ret void
}
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