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ARM64: don't emit .subsections_via_symbols on ELF. 

Part of PR19455.

llvm-svn: 206610
This commit is contained in:
Tim Northover 2014-04-18 14:54:41 +00:00
parent be3941cc79
commit be1d1b6681
2 changed files with 14 additions and 7 deletions
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16
llvm/lib/Target/ARM64/ARM64AsmPrinter.cpp
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@ -120,13 +120,15 @@ private:
//===----------------------------------------------------------------------===//
void ARM64AsmPrinter::EmitEndOfAsmFile(Module &M) {
// Funny Darwin hack: This flag tells the linker that no global symbols
// contain code that falls through to other global symbols (e.g. the obvious
// implementation of multiple entry points). If this doesn't occur, the
// linker can safely perform dead code stripping. Since LLVM never
// generates code that does this, it is always safe to set.
OutStreamer.EmitAssemblerFlag(MCAF_SubsectionsViaSymbols);
SM.serializeToStackMapSection();
if (Subtarget->isTargetMachO()) {
// Funny Darwin hack: This flag tells the linker that no global symbols
// contain code that falls through to other global symbols (e.g. the obvious
// implementation of multiple entry points). If this doesn't occur, the
// linker can safely perform dead code stripping. Since LLVM never
// generates code that does this, it is always safe to set.
OutStreamer.EmitAssemblerFlag(MCAF_SubsectionsViaSymbols);
SM.serializeToStackMapSection();
}
// Emit a .data.rel section containing any stubs that were created.
if (Subtarget->isTargetELF()) {

5
llvm/test/CodeGen/ARM64/subsections.ll Normal file
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@ -0,0 +1,5 @@
; RUN: llc -mtriple=arm64-apple-ios7.0 -o - %s | FileCheck %s --check-prefix=CHECK-MACHO
; RUN: llc -mtriple=arm64-linux-gnu -o - %s | FileCheck %s --check-prefix=CHECK-ELF
; CHECK-MACHO: .subsections_via_symbols
; CHECK-ELF-NOT: .subsections_via_symbols