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| author | Chris Lattner <sabre@nondot.org> | 2009-11-01 06:11:53 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-11-01 06:11:53 +0000 |
| commit | 1a8b80ed5a76cc27eb3553f0abc6c83b69552d3e (patch) | |
| tree | 6f07b5dee68699490a78d280efebfae760d45944 /llvm/lib/Transforms/IPO/IPConstantPropagation.cpp | |
| parent | a1dc101f66ef44cdb4f9e74168fb71196be236a1 (diff) | |
| download | llvm-1a8b80ed5a76cc27eb3553f0abc6c83b69552d3e.zip llvm-1a8b80ed5a76cc27eb3553f0abc6c83b69552d3e.tar.gz llvm-1a8b80ed5a76cc27eb3553f0abc6c83b69552d3e.tar.bz2 | |
teach ipsccp and ipconstprop that a blockaddress doesn't 'take the address' of a function
in a way that should prevent ip constprop. This allows clang/test/CodeGen/indirect-goto.c
to pass with the new indirect goto lowering.
llvm-svn: 85709
Diffstat (limited to 'llvm/lib/Transforms/IPO/IPConstantPropagation.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/IPConstantPropagation.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/IPConstantPropagation.cpp b/llvm/lib/Transforms/IPO/IPConstantPropagation.cpp index d9b2e30..023e642 100644 --- a/llvm/lib/Transforms/IPO/IPConstantPropagation.cpp +++ b/llvm/lib/Transforms/IPO/IPConstantPropagation.cpp @@ -86,6 +86,9 @@ bool IPCP::PropagateConstantsIntoArguments(Function &F) { unsigned NumNonconstant = 0; for (Value::use_iterator UI = F.use_begin(), E = F.use_end(); UI != E; ++UI) { + // Ignore blockaddress uses. + if (isa<BlockAddress>(*UI)) continue; + // Used by a non-instruction, or not the callee of a function, do not // transform. if (!isa<CallInst>(*UI) && !isa<InvokeInst>(*UI)) |