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llvm-mirror/test/Analysis/GlobalsModRef/aliastest.ll
Chandler Carruth ea13b8a791 [PM/AA] Teach the AAManager how to handle module analyses in addition to
function analyses, and use it to wire up globals-aa to the new pass
manager.

llvm-svn: 263211
2016-03-11 09:15:11 +00:00

19 lines
711 B
LLVM

; RUN: opt < %s -basicaa -globals-aa -gvn -S -enable-unsafe-globalsmodref-alias-results | FileCheck %s
; RUN: opt < %s -aa-pipeline=basic-aa,globals-aa -passes="require<globals-aa>,function(gvn)" -S -enable-unsafe-globalsmodref-alias-results | FileCheck %s
;
; Note that this test relies on an unsafe feature of GlobalsModRef. While this
; test is correct and safe, GMR's technique for handling this isn't generally.
@X = internal global i32 4 ; <i32*> [#uses=1]
define i32 @test(i32* %P) {
; CHECK: @test
; CHECK-NEXT: store i32 7, i32* %P
; CHECK-NEXT: store i32 12, i32* @X
; CHECK-NEXT: ret i32 7
store i32 7, i32* %P
store i32 12, i32* @X
%V = load i32, i32* %P ; <i32> [#uses=1]
ret i32 %V
}