60 lines
1.6 KiB
LLVM
60 lines
1.6 KiB
LLVM
|
; RUN: opt -basic-aa -print-memoryssa -verify-memoryssa -enable-new-pm=0 -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
|
||
|
|
}
|