llvm-6502/readnone.ll at 99d1c88279884182d801659166a9e782a862f6d8 - llvm-6502 - Applefritter: Git

6502/llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-22 09:29:31 +00:00

Bjorn Steinbrink 0cb6d37dea Remove conflicting attributes before adding deduced readonly/readnone

Summary:
In case of functions that have a pointer argument and only pass it to
each other, the function attributes pass deduces that the pointer should
get the readnone attribute, but fails to remove a readonly attribute
that may already have been present.

Reviewers: nlewycky

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9995

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238152 91177308-0d34-0410-b5e6-96231b3b80d8

2015-05-25 19:46:38 +00:00

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LLVM

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 ; RUN: opt < %s -functionattrs -S | FileCheck %s
 ; CHECK: define void @bar(i8* nocapture readnone)
 define void @bar(i8* readonly) {
   call void @foo(i8* %0)
     ret void
 }
 ; CHECK: define void @foo(i8* nocapture readnone)
 define void @foo(i8* readonly) {
   call void @bar(i8* %0)
   ret void
 }