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-rw-r--r--clang/lib/Driver/ToolChains/Clang.cpp89
-rw-r--r--clang/lib/Driver/ToolChains/CommonArgs.cpp120
-rw-r--r--clang/lib/Driver/ToolChains/CommonArgs.h8
-rw-r--r--clang/lib/Driver/ToolChains/RISCVToolchain.cpp7
-rw-r--r--clang/lib/Driver/ToolChains/RISCVToolchain.h1
-rw-r--r--clang/test/Driver/gold-lto.c18
6 files changed, 154 insertions, 89 deletions
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 74c698f7761..e35408876b4 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -302,95 +302,6 @@ static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args,
}
}
-static void getWebAssemblyTargetFeatures(const ArgList &Args,
- std::vector<StringRef> &Features) {
- handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group);
-}
-
-static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple,
- const ArgList &Args, ArgStringList &CmdArgs,
- bool ForAS) {
- const Driver &D = TC.getDriver();
- std::vector<StringRef> Features;
- switch (Triple.getArch()) {
- default:
- break;
- case llvm::Triple::mips:
- case llvm::Triple::mipsel:
- case llvm::Triple::mips64:
- case llvm::Triple::mips64el:
- mips::getMIPSTargetFeatures(D, Triple, Args, Features);
- break;
-
- case llvm::Triple::arm:
- case llvm::Triple::armeb:
- case llvm::Triple::thumb:
- case llvm::Triple::thumbeb:
- arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS);
- break;
-
- case llvm::Triple::ppc:
- case llvm::Triple::ppc64:
- case llvm::Triple::ppc64le:
- ppc::getPPCTargetFeatures(D, Triple, Args, Features);
- break;
- case llvm::Triple::riscv32:
- case llvm::Triple::riscv64:
- riscv::getRISCVTargetFeatures(D, Triple, Args, Features);
- break;
- case llvm::Triple::systemz:
- systemz::getSystemZTargetFeatures(Args, Features);
- break;
- case llvm::Triple::aarch64:
- case llvm::Triple::aarch64_be:
- aarch64::getAArch64TargetFeatures(D, Triple, Args, Features);
- break;
- case llvm::Triple::x86:
- case llvm::Triple::x86_64:
- x86::getX86TargetFeatures(D, Triple, Args, Features);
- break;
- case llvm::Triple::hexagon:
- hexagon::getHexagonTargetFeatures(D, Args, Features);
- break;
- case llvm::Triple::wasm32:
- case llvm::Triple::wasm64:
- getWebAssemblyTargetFeatures(Args, Features);
- break;
- case llvm::Triple::sparc:
- case llvm::Triple::sparcel:
- case llvm::Triple::sparcv9:
- sparc::getSparcTargetFeatures(D, Args, Features);
- break;
- case llvm::Triple::r600:
- case llvm::Triple::amdgcn:
- amdgpu::getAMDGPUTargetFeatures(D, Args, Features);
- break;
- case llvm::Triple::msp430:
- msp430::getMSP430TargetFeatures(D, Args, Features);
- }
-
- // Find the last of each feature.
- llvm::StringMap<unsigned> LastOpt;
- for (unsigned I = 0, N = Features.size(); I < N; ++I) {
- StringRef Name = Features[I];
- assert(Name[0] == '-' || Name[0] == '+');
- LastOpt[Name.drop_front(1)] = I;
- }
-
- for (unsigned I = 0, N = Features.size(); I < N; ++I) {
- // If this feature was overridden, ignore it.
- StringRef Name = Features[I];
- llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1));
- assert(LastI != LastOpt.end());
- unsigned Last = LastI->second;
- if (Last != I)
- continue;
-
- CmdArgs.push_back("-target-feature");
- CmdArgs.push_back(Name.data());
- }
-}
-
static bool
shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime,
const llvm::Triple &Triple) {
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 159b42a6427..10743559e04 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -11,8 +11,12 @@
#include "Arch/ARM.h"
#include "Arch/Mips.h"
#include "Arch/PPC.h"
+#include "Arch/RISCV.h"
+#include "Arch/Sparc.h"
#include "Arch/SystemZ.h"
#include "Arch/X86.h"
+#include "AMDGPU.h"
+#include "MSP430.h"
#include "HIP.h"
#include "Hexagon.h"
#include "InputInfo.h"
@@ -484,6 +488,14 @@ void tools::AddGoldPlugin(const ToolChain &ToolChain, const ArgList &Args,
if (!StatsFile.empty())
CmdArgs.push_back(
Args.MakeArgString(Twine("-plugin-opt=stats-file=") + StatsFile));
+
+ getTargetFeatures(ToolChain, ToolChain.getTriple(), Args, CmdArgs,
+ /* ForAS= */ false, /* ForLTOPlugin= */ true);
+
+ StringRef ABIName = tools::getTargetABI(Args, ToolChain.getTriple());
+ if (!ABIName.empty())
+ CmdArgs.push_back(
+ Args.MakeArgString(Twine("-plugin-opt=-target-abi=") + ABIName));
}
void tools::addArchSpecificRPath(const ToolChain &TC, const ArgList &Args,
@@ -1380,3 +1392,111 @@ void tools::addMultilibFlag(bool Enabled, const char *const Flag,
Multilib::flags_list &Flags) {
Flags.push_back(std::string(Enabled ? "+" : "-") + Flag);
}
+
+static void getWebAssemblyTargetFeatures(const ArgList &Args,
+ std::vector<StringRef> &Features) {
+ handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group);
+}
+
+void tools::getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple,
+ const ArgList &Args, ArgStringList &CmdArgs, bool ForAS,
+ bool ForLTOPlugin) {
+
+ const Driver &D = TC.getDriver();
+ std::vector<StringRef> Features;
+ switch (Triple.getArch()) {
+ default:
+ break;
+ case llvm::Triple::mips:
+ case llvm::Triple::mipsel:
+ case llvm::Triple::mips64:
+ case llvm::Triple::mips64el:
+ mips::getMIPSTargetFeatures(D, Triple, Args, Features);
+ break;
+
+ case llvm::Triple::arm:
+ case llvm::Triple::armeb:
+ case llvm::Triple::thumb:
+ case llvm::Triple::thumbeb:
+ arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS);
+ break;
+
+ case llvm::Triple::ppc:
+ case llvm::Triple::ppc64:
+ case llvm::Triple::ppc64le:
+ ppc::getPPCTargetFeatures(D, Triple, Args, Features);
+ break;
+ case llvm::Triple::riscv32:
+ case llvm::Triple::riscv64:
+ riscv::getRISCVTargetFeatures(D, Triple, Args, Features);
+ break;
+ case llvm::Triple::systemz:
+ systemz::getSystemZTargetFeatures(Args, Features);
+ break;
+ case llvm::Triple::aarch64:
+ case llvm::Triple::aarch64_be:
+ aarch64::getAArch64TargetFeatures(D, Triple, Args, Features);
+ break;
+ case llvm::Triple::x86:
+ case llvm::Triple::x86_64:
+ x86::getX86TargetFeatures(D, Triple, Args, Features);
+ break;
+ case llvm::Triple::hexagon:
+ hexagon::getHexagonTargetFeatures(D, Args, Features);
+ break;
+ case llvm::Triple::wasm32:
+ case llvm::Triple::wasm64:
+ getWebAssemblyTargetFeatures(Args, Features);
+ break;
+ case llvm::Triple::sparc:
+ case llvm::Triple::sparcel:
+ case llvm::Triple::sparcv9:
+ sparc::getSparcTargetFeatures(D, Args, Features);
+ break;
+ case llvm::Triple::r600:
+ case llvm::Triple::amdgcn:
+ amdgpu::getAMDGPUTargetFeatures(D, Args, Features);
+ break;
+ case llvm::Triple::msp430:
+ msp430::getMSP430TargetFeatures(D, Args, Features);
+ }
+
+ // Find the last of each feature.
+ llvm::StringMap<unsigned> LastOpt;
+ for (unsigned I = 0, N = Features.size(); I < N; ++I) {
+ StringRef Name = Features[I];
+ assert(Name[0] == '-' || Name[0] == '+');
+ LastOpt[Name.drop_front(1)] = I;
+ }
+
+ for (unsigned I = 0, N = Features.size(); I < N; ++I) {
+ // If this feature was overridden, ignore it.
+ StringRef Name = Features[I];
+ llvm::StringMap<unsigned>::iterator LastI =
+ LastOpt.find(Name.drop_front(1));
+ assert(LastI != LastOpt.end());
+ unsigned Last = LastI->second;
+ if (Last != I)
+ continue;
+ if (!ForLTOPlugin) {
+ CmdArgs.push_back("-target-feature");
+ CmdArgs.push_back(Name.data());
+ } else {
+ CmdArgs.push_back(
+ Args.MakeArgString(Twine("-plugin-opt=-mattr=") + Name));
+ }
+ }
+}
+
+StringRef tools::getTargetABI(const ArgList &Args, const llvm::Triple &Triple) {
+ // TODO: Support the other target ABI
+ switch (Triple.getArch()) {
+ default:
+ break;
+ case llvm::Triple::riscv32:
+ case llvm::Triple::riscv64:
+ return tools::riscv::getRISCVABI(Args, Triple);
+ break;
+ }
+ return StringRef();
+}
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.h b/clang/lib/Driver/ToolChains/CommonArgs.h
index 63359d77363..79468e6b892 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.h
+++ b/clang/lib/Driver/ToolChains/CommonArgs.h
@@ -118,6 +118,14 @@ SmallString<128> getStatsFileName(const llvm::opt::ArgList &Args,
void addMultilibFlag(bool Enabled, const char *const Flag,
Multilib::flags_list &Flags);
+StringRef getTargetABI(const llvm::opt::ArgList &Args,
+ const llvm::Triple &Triple);
+
+void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple,
+ const llvm::opt::ArgList &Args,
+ llvm::opt::ArgStringList &CmdArgs, bool ForAS,
+ bool ForLTOPlugin = false);
+
} // end namespace tools
} // end namespace driver
} // end namespace clang
diff --git a/clang/lib/Driver/ToolChains/RISCVToolchain.cpp b/clang/lib/Driver/ToolChains/RISCVToolchain.cpp
index 8d96f60590e..22dc5117f19 100644
--- a/clang/lib/Driver/ToolChains/RISCVToolchain.cpp
+++ b/clang/lib/Driver/ToolChains/RISCVToolchain.cpp
@@ -7,6 +7,7 @@
//===----------------------------------------------------------------------===//
#include "RISCVToolchain.h"
+#include "Arch/RISCV.h"
#include "CommonArgs.h"
#include "InputInfo.h"
#include "clang/Driver/Compilation.h"
@@ -100,6 +101,12 @@ void RISCV::Linker::ConstructJob(Compilation &C, const JobAction &JA,
std::string Linker = getToolChain().GetProgramPath(getShortName());
+ if (D.isUsingLTO()) {
+ assert(!Inputs.empty() && "Must have at least one input.");
+ AddGoldPlugin(ToolChain, Args, CmdArgs, Output, Inputs[0],
+ D.getLTOMode() == LTOK_Thin);
+ }
+
bool WantCRTs =
!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles);
diff --git a/clang/lib/Driver/ToolChains/RISCVToolchain.h b/clang/lib/Driver/ToolChains/RISCVToolchain.h
index b2b56b066ef..673d749d76f 100644
--- a/clang/lib/Driver/ToolChains/RISCVToolchain.h
+++ b/clang/lib/Driver/ToolChains/RISCVToolchain.h
@@ -25,6 +25,7 @@ public:
void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
llvm::opt::ArgStringList &CC1Args,
Action::OffloadKind) const override;
+ bool HasNativeLLVMSupport() const override { return true; }
void
AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
llvm::opt::ArgStringList &CC1Args) const override;
diff --git a/clang/test/Driver/gold-lto.c b/clang/test/Driver/gold-lto.c
index d16961eeda4..c761461f349 100644
--- a/clang/test/Driver/gold-lto.c
+++ b/clang/test/Driver/gold-lto.c
@@ -26,3 +26,21 @@
// RUN: %clang -target i686-linux-android -### %t.o -flto 2>&1 \
// RUN: | FileCheck %s --check-prefix=CHECK-X86-ANDROID
// CHECK-X86-ANDROID: "-plugin" "{{.*}}{{[/\\]}}LLVMgold.{{dll|dylib|so}}"
+//
+// RUN: %clang -target riscv64-unknown-elf -### %t.o -flto 2>&1 \
+// RUN: -march=rv64imf -mabi=lp64f \
+// RUN: | FileCheck %s --check-prefix=CHECK-RISCV-BAREMETAL
+// CHECK-RISCV-BAREMETAL: "-plugin" "{{.*}}{{[/\\]}}LLVMgold.{{dll|dylib|so}}"
+// CHECK-RISCV-BAREMETAL: "-plugin-opt=-mattr=+m"
+// CHECK-RISCV-BAREMETAL: "-plugin-opt=-mattr=+f"
+// CHECK-RISCV-BAREMETAL: "-plugin-opt=-mattr=+relax"
+// CHECK-RISCV-BAREMETAL: "-plugin-opt=-target-abi=lp64f"
+//
+// RUN: %clang -target riscv64-unknown-linux-gnu -### %t.o -flto 2>&1 \
+// RUN: -march=rv64imf -mabi=lp64f \
+// RUN: | FileCheck %s --check-prefix=CHECK-RISCV-LINUX
+// CHECK-RISCV-LINUX: "-plugin" "{{.*}}{{[/\\]}}LLVMgold.{{dll|dylib|so}}"
+// CHECK-RISCV-LINUX: "-plugin-opt=-mattr=+m"
+// CHECK-RISCV-LINUX: "-plugin-opt=-mattr=+f"
+// CHECK-RISCV-LINUX: "-plugin-opt=-mattr=+relax"
+// CHECK-RISCV-LINUX: "-plugin-opt=-target-abi=lp64f"
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