llvm-6502/test/Analysis/GlobalsModRef/2008-09-03-Mutual.ll
Duncan Sands 9a036b945c Cleanup GlobalsModRef a bit. When analysing the
callgraph, when one member of a SCC calls another
then the analysis would drop to mod-ref because
there is (usually) no function info for the callee
yet; fix this.  Teach the analysis about function
attributes, in particular the readonly attribute
(which requires being careful about globals).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55696 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 12:55:42 +00:00

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237 B
LLVM

; RUN: llvm-as < %s | opt -globalsmodref-aa -markmodref | llvm-dis | grep readnone
define i32 @a() {
%tmp = call i32 @b( ) ; <i32> [#uses=1]
ret i32 %tmp
}
define i32 @b() {
%tmp = call i32 @a( ) ; <i32> [#uses=1]
ret i32 %tmp
}