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authormingmingl <mingmingl@google.com>2025-08-30 20:34:28 -0700
committermingmingl <mingmingl@google.com>2025-09-13 22:26:24 -0700
commitd4e4d958ce165b82f4da2b509bec5a7e4aaec756 (patch)
treed9caa5e5f0864a28c0c8e74adaea215b66cbe0cb /llvm/lib/IR/Globals.cpp
parent4a7ba1de7100e15d7fb444c0b9868977b16b5494 (diff)
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Diffstat (limited to 'llvm/lib/IR/Globals.cpp')
-rw-r--r--llvm/lib/IR/Globals.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/IR/Globals.cpp b/llvm/lib/IR/Globals.cpp
index 11d33e2..0731fcb 100644
--- a/llvm/lib/IR/Globals.cpp
+++ b/llvm/lib/IR/Globals.cpp
@@ -289,11 +289,28 @@ void GlobalObject::setSection(StringRef S) {
}
void GlobalObject::setSectionPrefix(StringRef Prefix) {
+ if (Prefix.empty()) {
+ setMetadata(LLVMContext::MD_section_prefix, nullptr);
+ return;
+ }
MDBuilder MDB(getContext());
setMetadata(LLVMContext::MD_section_prefix,
MDB.createGlobalObjectSectionPrefix(Prefix));
}
+bool GlobalObject::updateSectionPrefix(StringRef Prefix) {
+ auto MD = getMetadata(LLVMContext::MD_section_prefix);
+ StringRef ExistingPrefix; // Empty by default.
+ if (MD != nullptr)
+ ExistingPrefix = cast<MDString>(MD->getOperand(1))->getString();
+
+ if (ExistingPrefix != Prefix) {
+ setSectionPrefix(Prefix);
+ return true;
+ }
+ return false;
+}
+
std::optional<StringRef> GlobalObject::getSectionPrefix() const {
if (MDNode *MD = getMetadata(LLVMContext::MD_section_prefix)) {
[[maybe_unused]] StringRef MDName =