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Check that we don't have external varaibles with internal linkage

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4051 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-10-06 22:47:32 +00:00
parent 08c0e6af4f
commit 61b91bc156
1 changed files with 5 additions and 1 deletions
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6
lib/VMCore/Verifier.cpp
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@ -25,7 +25,7 @@
// * Verify that a function's argument list agrees with it's declared type. // * Verify that a function's argument list agrees with it's declared type.
// . Verify that arrays and structures have fixed elements: No unsized arrays. // . Verify that arrays and structures have fixed elements: No unsized arrays.
// * It is illegal to specify a name for a void value. // * It is illegal to specify a name for a void value.
// * It is illegal to have a internal function that is just a declaration // * It is illegal to have a internal global value with no intitalizer
// * It is illegal to have a ret instruction that returns a value that does not // * It is illegal to have a ret instruction that returns a value that does not
// agree with the function return value type. // agree with the function return value type.
// * Function call argument types match the function prototype // * Function call argument types match the function prototype
@ -98,6 +98,10 @@ namespace { // Anonymous namespace for class
if (I->isExternal() && I->hasInternalLinkage()) if (I->isExternal() && I->hasInternalLinkage())
CheckFailed("Function Declaration has Internal Linkage!", I); CheckFailed("Function Declaration has Internal Linkage!", I);
for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
if (I->isExternal() && I->hasInternalLinkage())
CheckFailed("Global Variable is external with internal linkage!", I);
// If the module is broken, abort at this time. // If the module is broken, abort at this time.
abortIfBroken(); abortIfBroken();
return false; return false;