mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-02 16:56:50 +00:00
4cb3366de0
Motivated by the work on the llvm.noalias intrinsic, teach BasicAA to look through returned-argument functions when answering queries. This is essential so that we don't loose all other AA information when supplementing with llvm.noalias. Differential Revision: http://reviews.llvm.org/D9383 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275035 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
1.5 KiB
LLVM
46 lines
1.5 KiB
LLVM
; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
%struct = type { i32, i32, i32 }
|
|
|
|
; CHECK-LABEL: test_simple
|
|
|
|
; CHECK-DAG: MustAlias: %struct* %st, %struct* %sta
|
|
|
|
; CHECK-DAG: PartialAlias: %struct* %st, i32* %x
|
|
; CHECK-DAG: PartialAlias: %struct* %st, i32* %y
|
|
; CHECK-DAG: PartialAlias: %struct* %st, i32* %z
|
|
|
|
; CHECK-DAG: NoAlias: i32* %x, i32* %y
|
|
; CHECK-DAG: NoAlias: i32* %x, i32* %z
|
|
; CHECK-DAG: NoAlias: i32* %y, i32* %z
|
|
|
|
; CHECK-DAG: PartialAlias: %struct* %st, %struct* %y_12
|
|
; CHECK-DAG: PartialAlias: %struct* %y_12, i32* %x
|
|
; CHECK-DAG: PartialAlias: i32* %x, i80* %y_10
|
|
|
|
; CHECK-DAG: PartialAlias: %struct* %st, i64* %y_8
|
|
; CHECK-DAG: PartialAlias: i32* %z, i64* %y_8
|
|
; CHECK-DAG: NoAlias: i32* %x, i64* %y_8
|
|
|
|
; CHECK-DAG: MustAlias: %struct* %y_12, i32* %y
|
|
; CHECK-DAG: MustAlias: i32* %y, i64* %y_8
|
|
; CHECK-DAG: MustAlias: i32* %y, i80* %y_10
|
|
|
|
define void @test_simple(%struct* %st, i64 %i, i64 %j, i64 %k) {
|
|
%x = getelementptr %struct, %struct* %st, i64 %i, i32 0
|
|
%y = getelementptr %struct, %struct* %st, i64 %j, i32 1
|
|
%sta = call %struct* @func2(%struct* %st)
|
|
%z = getelementptr %struct, %struct* %sta, i64 %k, i32 2
|
|
%y_12 = bitcast i32* %y to %struct*
|
|
%y_10 = bitcast i32* %y to i80*
|
|
%ya = call i32* @func1(i32* %y)
|
|
%y_8 = bitcast i32* %ya to i64*
|
|
ret void
|
|
}
|
|
|
|
declare i32* @func1(i32* returned) nounwind
|
|
declare %struct* @func2(%struct* returned) nounwind
|
|
|