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authorChris Lattner <sabre@nondot.org>2011-01-18 01:23:44 +0000
committerChris Lattner <sabre@nondot.org>2011-01-18 01:23:44 +0000
commitea4e983d703b1598a3a1947f725d4139991d968c (patch)
tree4954c572c8ae88dffed1737a33da04c86085522f /llvm/lib/Target/TargetLoweringObjectFile.cpp
parent2652ad251a20c3f6a878763303ae0af037c2a2f9 (diff)
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minor change to rafael's recent patches: if something is
constant but requires a unique address, we can still put it in a readonly section, just not a mergable one. llvm-svn: 123711
Diffstat (limited to 'llvm/lib/Target/TargetLoweringObjectFile.cpp')
-rw-r--r--llvm/lib/Target/TargetLoweringObjectFile.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/Target/TargetLoweringObjectFile.cpp b/llvm/lib/Target/TargetLoweringObjectFile.cpp
index eab43fb..681beec 100644
--- a/llvm/lib/Target/TargetLoweringObjectFile.cpp
+++ b/llvm/lib/Target/TargetLoweringObjectFile.cpp
@@ -162,13 +162,19 @@ SectionKind TargetLoweringObjectFile::getKindForGlobal(const GlobalValue *GV,
// If the global is marked constant, we can put it into a mergable section,
// a mergable string section, or general .data if it contains relocations.
- if (GVar->isConstant() && GVar->hasUnnamedAddr()) {
+ if (GVar->isConstant()) {
// If the initializer for the global contains something that requires a
// relocation, then we may have to drop this into a wriable data section
// even though it is marked const.
switch (C->getRelocationInfo()) {
default: assert(0 && "unknown relocation info kind");
case Constant::NoRelocation:
+ // If the global is required to have a unique address, it can't be put
+ // into a mergable section: just drop it into the general read-only
+ // section instead.
+ if (!GVar->hasUnnamedAddr())
+ return SectionKind::getReadOnly();
+
// If initializer is a null-terminated string, put it in a "cstring"
// section of the right width.
if (const ArrayType *ATy = dyn_cast<ArrayType>(C->getType())) {