forked from OSchip/llvm-project
26 lines
746 B
LLVM
26 lines
746 B
LLVM
|
; 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
|
||
|
|
;
|
||
|
|
; Checks that basicAA is doing some amount of disambiguation for us
|
||
|
|
|
||
|
|
define i32 @foo(i1 %cond) {
|
||
|
|
%a = alloca i32, align 4
|
||
|
|
%b = alloca i32, align 4
|
||
|
|
; CHECK: 1 = MemoryDef(liveOnEntry)
|
||
|
|
; CHECK-NEXT: store i32 0
|
||
|
|
store i32 0, i32* %a, align 4
|
||
|
|
; CHECK: 2 = MemoryDef(1)
|
||
|
|
; CHECK-NEXT: store i32 1
|
||
|
|
store i32 1, i32* %b, align 4
|
||
|
|
|
||
|
|
; CHECK: MemoryUse(1)
|
||
|
|
; CHECK-NEXT: %1 = load i32
|
||
|
|
%1 = load i32, i32* %a, align 4
|
||
|
|
; CHECK: MemoryUse(2)
|
||
|
|
; CHECK-NEXT: %2 = load i32
|
||
|
|
%2 = load i32, i32* %b, align 4
|
||
|
|
|
||
|
|
%3 = add i32 %1, %2
|
||
|
|
ret i32 %3
|
||
|
|
}
|