llvm-6502/getmodrefinfo-cs-cs.ll at 5fa417c7904f7394d4e6dcb86e366c86867bcb5a - llvm-6502 - Applefritter: Git

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Dan Gohman 5fa417c790 Fix memdep's code for reasoning about dependences between two calls. A Ref

response from getModRefInfo is not useful here. Instead, check for identical
calls only in the NoModRef case.

Reapply r110270, and strengthen it to compensate for the memdep changes.
When both calls are readonly, there is no dependence between them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110382 91177308-0d34-0410-b5e6-96231b3b80d8

2010-08-05 22:09:15 +00:00

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 ; RUN: opt < %s -aa-eval -print-all-alias-modref-info -disable-output |& FileCheck %s
 ; CHECK: Just Ref: call void @ro() <-> call void @f0()
 declare void @f0()
 declare void @ro() readonly
 define void @test() {
   call void @f0()
   call void @ro()
   ret void
 }