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llvm-mirror/test/Transforms/FunctionAttrs/2008-12-29-Constant.ll
Dan Gohman 6909ecf66e Extend the AliasAnalysis::pointsToConstantMemory interface to allow it
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.

llvm-svn: 118412
2010-11-08 16:45:26 +00:00

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LLVM

; RUN: opt < %s -basicaa -functionattrs -S | grep readnone
@s = external constant i8 ; <i8*> [#uses=1]
define i8 @f() {
%tmp = load i8* @s ; <i8> [#uses=1]
ret i8 %tmp
}