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| author | Torok Edwin <edwintorok@gmail.com> | 2009-09-24 09:47:18 +0000 |
|---|---|---|
| committer | Torok Edwin <edwintorok@gmail.com> | 2009-09-24 09:47:18 +0000 |
| commit | 30a94e3b4203cee64db0edd997780bbe4ad0acdc (patch) | |
| tree | 933afcf9967cb4b73c1c5fb731b12a6dfe16c0fd /lib/Transforms/Scalar/SCCP.cpp | |
| parent | 48f7ce88a6040c12d4c7d0a5bd208cf1e0bda9d1 (diff) | |
| download | llvm-30a94e3b4203cee64db0edd997780bbe4ad0acdc.tar.gz llvm-30a94e3b4203cee64db0edd997780bbe4ad0acdc.tar.bz2 llvm-30a94e3b4203cee64db0edd997780bbe4ad0acdc.tar.xz | |
Don't constant propagate byval pointers, since they are not really pointers, but
rather structs passed by value.
This fixes PR5038.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82689 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/SCCP.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/SCCP.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp index f0b5d7702e..bf9ec0e4ad 100644 --- a/lib/Transforms/Scalar/SCCP.cpp +++ b/lib/Transforms/Scalar/SCCP.cpp @@ -1267,6 +1267,10 @@ CallOverdefined: for (Function::arg_iterator AI = F->arg_begin(), E = F->arg_end(); AI != E; ++AI, ++CAI) { LatticeVal &IV = ValueState[AI]; + if (AI->hasByValAttr() && isa<PointerType>(AI->getType())) { + IV.markOverdefined(); + continue; + } if (!IV.isOverdefined()) mergeInValue(IV, AI, getValueState(*CAI)); } |