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[AArch64] Support COFF linker directives
This is similar to what was done for ARM in SVN r269574; the code and the test are straight copypaste to the corresponding AArch64 code and test directory. Differential revision: https://reviews.llvm.org/D37204 llvm-svn: 312223
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@ -17,6 +17,7 @@
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#include "AArch64MachineFunctionInfo.h"
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#include "AArch64RegisterInfo.h"
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#include "AArch64Subtarget.h"
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#include "AArch64TargetObjectFile.h"
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#include "InstPrinter/AArch64InstPrinter.h"
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#include "MCTargetDesc/AArch64AddressingModes.h"
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#include "MCTargetDesc/AArch64MCTargetDesc.h"
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@ -209,6 +210,29 @@ void AArch64AsmPrinter::EmitEndOfAsmFile(Module &M) {
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OutStreamer->EmitAssemblerFlag(MCAF_SubsectionsViaSymbols);
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SM.serializeToStackMapSection();
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}
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if (TT.isOSBinFormatCOFF()) {
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const auto &TLOF =
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static_cast<const TargetLoweringObjectFileCOFF &>(getObjFileLowering());
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std::string Flags;
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raw_string_ostream OS(Flags);
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for (const auto &Function : M)
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TLOF.emitLinkerFlagsForGlobal(OS, &Function);
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for (const auto &Global : M.globals())
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TLOF.emitLinkerFlagsForGlobal(OS, &Global);
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for (const auto &Alias : M.aliases())
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TLOF.emitLinkerFlagsForGlobal(OS, &Alias);
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OS.flush();
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// Output collected flags
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if (!Flags.empty()) {
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OutStreamer->SwitchSection(TLOF.getDrectveSection());
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OutStreamer->EmitBytes(Flags);
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}
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}
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}
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void AArch64AsmPrinter::EmitLOHs() {
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74
test/CodeGen/AArch64/dllexport.ll
Normal file
74
test/CodeGen/AArch64/dllexport.ll
Normal file
@ -0,0 +1,74 @@
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; RUN: llc -mtriple aarch64-windows-gnu -filetype asm -o - %s | FileCheck %s -check-prefix CHECK -check-prefix CHECK-GNU
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; RUN: llc -mtriple aarch64-windows-msvc -filetype asm -o - %s | FileCheck %s -check-prefix CHECK -check-prefix CHECK-MSVC
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define void @f() {
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ret void
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}
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define dllexport void @g() {
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ret void
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}
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define dllexport void @h() unnamed_addr {
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ret void
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}
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declare dllexport void @i()
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define linkonce_odr dllexport void @j() {
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ret void
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}
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define linkonce_odr dllexport void @k() alwaysinline {
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ret void
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}
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define weak_odr dllexport void @l() {
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ret void
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}
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@m = dllexport global i32 0, align 4
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@n = dllexport unnamed_addr constant i32 0
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@o = common dllexport global i32 0, align 4
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@p = weak_odr dllexport global i32 0, align 4
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@q = weak_odr dllexport unnamed_addr constant i32 0
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@r = dllexport alias void (), void () * @f
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@s = dllexport alias void (), void () * @g
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@t = dllexport alias void (), void () * @f
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@u = weak_odr dllexport alias void (), void () * @g
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; CHECK: .section .drectve
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; CHECK-GNU-NOT: -export:f
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; CHECK-GNU: -export:g
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; CHECK-GNU-SAME: -export:h
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; CHECK-GNU-NOT: -export:i
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; CHECK-GNU-SAME: -export:j
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; CHECK-GNU-SAME: -export:k
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; CHECK-GNU-SAME: -export:l
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; CHECK-GNU-SAME: -export:m,data
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; CHECK-GNU-SAME: -export:n,data
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; CHECK-GNU-SAME: -export:o,data
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; CHECK-GNU-SAME: -export:p,data
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; CHECK-GNU-SAME: -export:q,data
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; CHECK-GNU-SAME: -export:r
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; CHECK-GNU-SAME: -export:s
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; CHECK-GNU-SAME: -export:t
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; CHECK-GNU-SAME: -export:u
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; CHECK-MSVC-NOT: /EXPORT:f
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; CHECK-MSVC: /EXPORT:g
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; CHECK-MSVC-SAME: /EXPORT:h
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; CHECK-MSVC-NOT: /EXPORT:i
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; CHECK-MSVC-SAME: /EXPORT:j
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; CHECK-MSVC-SAME: /EXPORT:k
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; CHECK-MSVC-SAME: /EXPORT:l
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; CHECK-MSVC-SAME: /EXPORT:m,DATA
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; CHECK-MSVC-SAME: /EXPORT:n,DATA
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; CHECK-MSVC-SAME: /EXPORT:o,DATA
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; CHECK-MSVC-SAME: /EXPORT:p,DATA
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; CHECK-MSVC-SAME: /EXPORT:q,DATA
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; CHECK-MSVC-SAME: /EXPORT:r
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; CHECK-MSVC-SAME: /EXPORT:s
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; CHECK-MSVC-SAME: /EXPORT:t
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; CHECK-MSVC-SAME: /EXPORT:u
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