[WebAssembly] section kind can be code
Currently, when creating a named section, the Wasm
frontend forces it to use `SectionKind::Data`, whereas
in fact C++ does generate code sections with custom
names.
Patch by Nicholas Wilson
Differential Revision: https://reviews.llvm.org/D40906
llvm-svn: 320002
diff --git a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 910ca46..925e67b 100644
--- a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -1265,11 +1265,22 @@
"' cannot be lowered.");
}
+static SectionKind getWasmKindForNamedSection(StringRef Name, SectionKind K) {
+ // If we're told we have function data, then use that.
+ if (K.isText())
+ return SectionKind::getText();
+
+ // Otherwise, ignore whatever section type the generic impl detected and use
+ // a plain data section.
+ return SectionKind::getData();
+}
+
MCSection *TargetLoweringObjectFileWasm::getExplicitSectionGlobal(
const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const {
StringRef Name = GO->getSection();
checkWasmComdat(GO);
- return getContext().getWasmSection(Name, SectionKind::getData());
+ Kind = getWasmKindForNamedSection(Name, Kind);
+ return getContext().getWasmSection(Name, Kind);
}
static MCSectionWasm *selectWasmSectionForGlobal(