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Code-gen may inject code into the IR before it emits the ASM. The linker

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obviously cannot know that this code is present, let alone used. So prevent the
internalize pass from internalizing those global values which code-gen may
insert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154645 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2012-04-13 01:06:27 +00:00
parent 511568dd1f
commit aab3c0cb07
1 changed files with 6 additions and 0 deletions
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6
lib/Transforms/IPO/Internalize.cpp
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@ -122,6 +122,9 @@ bool InternalizePass::runOnModule(Module &M) {
bool Changed = false;
// Never internalize functions which code-gen might insert.
ExternalNames.insert("__stack_chk_fail");
// Mark all functions not in the api as internal.
// FIXME: maybe use private linkage?
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
@ -150,6 +153,9 @@ bool InternalizePass::runOnModule(Module &M) {
ExternalNames.insert("llvm.global_dtors");
ExternalNames.insert("llvm.global.annotations");
// Never internalize symbols code-gen inserts.
ExternalNames.insert("__stack_chk_guard");
// Mark all global variables with initializers that are not in the api as
// internal as well.
// FIXME: maybe use private linkage?