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cf47ce616c
The simplify-libcalls pass implemented a doInitialization hook to infer function prototype attributes for well-known functions. Given that the simplify-libcalls pass is going away *and* that the functionattrs pass is already in place to deduce function attributes, I am moving this logic to the functionattrs pass. This approach was discussed during patch review: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121126/157465.html. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177619 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
426 B
LLVM
15 lines
426 B
LLVM
; RUN: opt < %s -inline -instcombine -functionattrs | llvm-dis
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;
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; Check that nocapture attributes are added when run after an SCC pass.
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; PR3520
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define i32 @use(i8* %x) nounwind readonly {
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; CHECK: @use(i8* nocapture %x)
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%1 = tail call i64 @strlen(i8* %x) nounwind readonly
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%2 = trunc i64 %1 to i32
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ret i32 %2
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}
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declare i64 @strlen(i8*) nounwind readonly
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; CHECK: declare i64 @strlen(i8* nocapture) nounwind readonly
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