Print out the variable declaration only if it is a declaration. Otherwise, a
'static' variable will be emitted twice.
PR10081
llvm-svn: 137134
diff --git a/llvm/lib/Target/CBackend/CBackend.cpp b/llvm/lib/Target/CBackend/CBackend.cpp
index 5b9a0a2..e4ecb9e 100644
--- a/llvm/lib/Target/CBackend/CBackend.cpp
+++ b/llvm/lib/Target/CBackend/CBackend.cpp
@@ -1817,7 +1817,7 @@
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;
diff --git a/llvm/test/CodeGen/CBackend/pr10081.ll b/llvm/test/CodeGen/CBackend/pr10081.ll
new file mode 100644
index 0000000..723bf5c
--- /dev/null
+++ b/llvm/test/CodeGen/CBackend/pr10081.ll
@@ -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
+}