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Print out the variable declaration only if it is a declaration. Otherwise, a

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'static' variable will be emitted twice.
PR10081


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137134 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-08-09 18:31:50 +00:00
parent 4a74b3b933
commit a0f596c1fc
2 changed files with 12 additions and 1 deletions
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2
lib/Target/CBackend/CBackend.cpp
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@ -1817,7 +1817,7 @@ bool CWriter::doInitialization(Module &M) {
Out << "\n\n/* Global Variable Declarations */\n";
for (Module::global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I)
if (!I->isDeclaration()) {
if (I->isDeclaration()) {
// Ignore special globals, such as debug info.
if (getGlobalVariableClass(I))
continue;

11
test/CodeGen/CBackend/pr10081.ll Normal file
View File

@ -0,0 +1,11 @@
; RUN: llc < %s -march=c | grep {static float _ZL3foo} | count 1
; PR10081
@_ZL3foo = internal global float 0.000000e+00, align 4
define float @_Z3barv() nounwind ssp {
%1 = load float* @_ZL3foo, align 4
%2 = fadd float %1, 1.000000e+00
store float %2, float* @_ZL3foo, align 4
ret float %1
}