Add support for AArch64 and ARM v8.1 architecture extension. Briefly it is
described on
http://community.arm.com/groups/processors/blog/2014/12/02/the-armv8-a-architecture-and-its-ongoing-development
Depends on http://reviews.llvm.org/D8492
http://reviews.llvm.org/D8493
Files:
lib/Basic/Targets.cpp
lib/Driver/Tools.cpp
test/Driver/aarch64-cpus.c
test/Driver/arm-cortex-cpus.c
test/Preprocessor/aarch64-target-features.c
test/Preprocessor/arm-target-features.c
EMAIL PREFERENCES
http://reviews.llvm.org/settings/panel/emailpreferences/
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -4118,9 +4118,21 @@
Features["hwdiv-arm"] = true;
Features["crc"] = true;
Features["crypto"] = true;
+ } else if (CPU == "generic-armv8.1-a" ) {
+ Features["v8.1a"] = true;
+ Features["fp-armv8"] = true;
+ Features["neon"] = true;
+ Features["hwdiv"] = true;
+ Features["hwdiv-arm"] = true;
+ Features["crc"] = true;
+ Features["crypto"] = true;
} else if (CPU == "cortex-r5" || CPU == "cortex-r7" ||
// Enable the hwdiv extension for all v8a AArch32 cores by
// default.
+ ArchName == "armv8.1a" ||
+ ArchName == "armebv8.1a" || ArchName == "armebv8.1a" ||
+ ArchName == "thumbv8.1a" || ArchName == "thumbv8.1a" ||
+ ArchName == "thumbebv8.1a" || ArchName == "thumbebv8.1" ||
ArchName == "armv8a" || ArchName == "armv8" ||
ArchName == "armebv8a" || ArchName == "armebv8" ||
ArchName == "thumbv8a" || ArchName == "thumbv8" ||
@@ -4234,6 +4246,7 @@
.Cases("cortex-m4", "cortex-m7", "7EM")
.Cases("sc000", "cortex-m0", "cortex-m0plus", "cortex-m1", "6M")
.Cases("cortex-a53", "cortex-a57", "cortex-a72", "8A")
+ .Case("generic-armv8.1-a","8_1A")
.Default(nullptr);
}
static const char *getCPUProfile(StringRef Name) {
@@ -4245,6 +4258,7 @@
.Cases("cortex-m3", "cortex-m4", "cortex-m0", "cortex-m0plus", "M")
.Cases("cortex-m1", "cortex-m7", "sc000", "sc300", "M")
.Cases("cortex-r4", "cortex-r5", "cortex-r7", "R")
+ .Case("generic-armv8.1-a", "A")
.Default("");
}
bool setCPU(const std::string &Name) override {
@@ -4272,6 +4286,7 @@
// We check both CPUArchVer and ArchName because when only triple is
// specified, the default CPU is arm1136j-s.
return ArchName.endswith("v6t2") || ArchName.endswith("v7") ||
+ ArchName.endswith("v8.1a") ||
ArchName.endswith("v8") || CPUArch == "6T2" || CPUArchVer >= 7;
}
void getTargetDefines(const LangOptions &Opts,
@@ -4792,6 +4807,7 @@
bool setCPU(const std::string &Name) override {
bool CPUKnown = llvm::StringSwitch<bool>(Name)
.Case("generic", true)
+ .Case("generic-armv8.1-a", true)
.Cases("cortex-a53", "cortex-a57", "cortex-a72", true)
.Case("cyclone", true)
.Default(false);
Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -908,6 +908,14 @@
if (Args.getLastArg(options::OPT_arch))
return "cyclone";
+ if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
+ std::string MArch = A->getValue();
+ std::string v8_1a = "armv8.1a";
+ std::string v8_1_a = "armv8.1-a";
+ if(MArch.substr(0, v8_1a.size()) == v8_1a ||
+ MArch.substr(0, v8_1_a.size()) == v8_1_a)
+ return "generic-armv8.1-a";
+ }
return "generic";
}
@@ -1750,7 +1758,7 @@
Features.push_back("+neon");
Features.push_back("+crc");
Features.push_back("+crypto");
- } else if (CPU == "generic") {
+ } else if (!CPU.find("generic")){
Features.push_back("+neon");
} else {
return false;
@@ -1767,7 +1775,11 @@
const ArgList &Args,
std::vector<const char *> &Features) {
std::pair<StringRef, StringRef> Split = March.split("+");
- if (Split.first != "armv8-a")
+
+ if (Split.first != "armv8-a" &&
+ Split.first != "armv8a" &&
+ Split.first != "armv8.1-a" &&
+ Split.first != "armv8.1a" )
return false;
if (Split.second.size() && !DecodeAArch64Features(D, Split.second, Features))
@@ -5527,7 +5539,7 @@
// Handle -march=native.
if (MArch == "native") {
std::string CPU = llvm::sys::getHostCPUName();
- if (CPU != "generic") {
+ if (CPU.find("generic")) {
// Translate the native cpu into the architecture. The switch below will
// then chose the minimum cpu for that arch.
MArch = std::string("arm") + arm::getLLVMArchSuffixForARM(CPU);
@@ -5583,6 +5595,7 @@
.Case("swift", "v7s")
.Case("cyclone", "v8")
.Cases("cortex-a53", "cortex-a57", "cortex-a72", "v8")
+ .Case("generic-armv8.1-a", "v8.1a")
.Default("");
}
@@ -7290,7 +7303,9 @@
if (MArch == "armv7" || MArch == "armv7a" || MArch == "armv7-a")
CmdArgs.push_back("-mfpu=neon");
if (MArch == "armv8" || MArch == "armv8a" || MArch == "armv8-a" ||
- MArch == "armebv8" || MArch == "armebv8a" || MArch == "armebv8-a")
+ MArch == "armebv8" || MArch == "armebv8a" || MArch == "armebv8-a" ||
+ MArch == "armv8.1a" || MArch == "armv8.1-a" ||
+ MArch == "armebv8.1" || MArch == "armebv8.1a" || MArch == "armebv8.1-a")
CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
StringRef ARMFloatABI = tools::arm::getARMFloatABI(
Index: test/Driver/aarch64-cpus.c
===================================================================
--- test/Driver/aarch64-cpus.c
+++ test/Driver/aarch64-cpus.c
@@ -88,3 +88,26 @@
// RUN: %clang -target aarch64 -mcpu=cortex-a72 -mtune=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=MCPU-MTUNE %s
// RUN: %clang -target aarch64 -mtune=cortex-a53 -mcpu=cortex-a72 -### -c %s 2>&1 | FileCheck -check-prefix=MCPU-MTUNE %s
// MCPU-MTUNE: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "cortex-a53"
+
+// RUN: %clang -target aarch64 -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
+// RUN: %clang -target aarch64 -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
+// RUN: %clang -target aarch64 -mlittle-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
+// RUN: %clang -target aarch64 -mlittle-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
+// RUN: %clang -target aarch64_be -mlittle-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A %s
+// GENERICV81A: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic-armv8.1-a"
+
+// RUN: %clang -target arm64 -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERICV81A %s
+// RUN: %clang -target arm64 -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERICV81A %s
+// RUN: %clang -target arm64 -mlittle-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERICV81A %s
+// RUN: %clang -target arm64 -mlittle-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=ARM64-GENERICV81A %s
+// ARM64-GENERICV81A: "-cc1"{{.*}} "-triple" "arm64{{.*}}" "-target-cpu" "generic-armv8.1-a"
+
+// RUN: %clang -target aarch64_be -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
+// RUN: %clang -target aarch64_be -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
+// RUN: %clang -target aarch64 -mbig-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
+// RUN: %clang -target aarch64 -mbig-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
+// RUN: %clang -target aarch64_be -mbig-endian -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
+// RUN: %clang -target aarch64_be -mbig-endian -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=GENERICV81A-BE %s
+// GENERICV81A-BE: "-cc1"{{.*}} "-triple" "aarch64_be{{.*}}" "-target-cpu" "generic-armv8.1-a"
+
Index: test/Driver/arm-cortex-cpus.c
===================================================================
--- test/Driver/arm-cortex-cpus.c
+++ test/Driver/arm-cortex-cpus.c
@@ -166,6 +166,50 @@
// RUN: %clang -target arm -march=armebv8a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A-THUMB %s
// CHECK-BE-V8A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8-{{.*}}" "-target-cpu" "cortex-a53"
+// RUN: %clang -target armv8.1 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target arm -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target arm -march=armv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target arm -march=armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target armv8.1 -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target arm -march=armv8.1a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target armv8.1a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target arm -march=armv8.1a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// RUN: %clang -target arm -mlittle-endian -march=armv8.1-a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A %s
+// CHECK-V81A: "-cc1"{{.*}} "-triple" "armv8.1a-{{.*}}" "-target-cpu" "generic-armv8.1-a"
+
+// RUN: %clang -target armebv8.1 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target armeb -march=armebv8.1 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target armebv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target armeb -march=armebv8.1a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target armeb -march=armebv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target armv8.1 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target arm -march=armebv8.1 -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target armv8.1a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target arm -march=armebv8.1a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// RUN: %clang -target arm -march=armebv8.1-a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A %s
+// CHECK-BE-V81A: "-cc1"{{.*}} "-triple" "armebv8.1a-{{.*}}" "-target-cpu" "generic-armv8.1-a"
+
+// RUN: %clang -target armv8.1 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// RUN: %clang -target arm -march=armv8.1 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// RUN: %clang -target armv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// RUN: %clang -target arm -march=armv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// RUN: %clang -target armv8.1 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// RUN: %clang -target arm -march=armv8.1 -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// RUN: %clang -target armv8.1a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// RUN: %clang -target arm -march=armv8.1a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-THUMB %s
+// CHECK-V81A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8.1a-{{.*}}" "-target-cpu" "generic-armv8.1-a"
+
+// RUN: %clang -target armebv8.1 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// RUN: %clang -target armeb -march=armebv8.1 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// RUN: %clang -target armebv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// RUN: %clang -target armeb -march=armebv8.1a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// RUN: %clang -target armv8.1 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// RUN: %clang -target arm -march=armebv8.1 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// RUN: %clang -target armv8.1a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// RUN: %clang -target arm -march=armebv8.1a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V81A-THUMB %s
+// CHECK-BE-V81A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8.1a-{{.*}}" "-target-cpu" "generic-armv8.1-a"
+
// ================== Check default CPU on bogus architecture
// RUN: %clang -target arm -march=armbogusv6 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BOGUS %s
// CHECK-BOGUS: "-cc1"{{.*}} "-triple" "armv4t-{{.*}} "-target-cpu" "arm7tdmi"
@@ -343,3 +387,20 @@
// RUN: %clang -target arm -mcpu=cortex-a57 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
// RUN: %clang -target arm -mcpu=cortex-a72 -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
// CHECK-BE-CPUV8A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8-{{.*}}
+
+// RUN: %clang -target arm -mcpu=generic-armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV81A %s
+// RUN: %clang -target arm -mcpu=generic-armv8.1-a -mlittle-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV81A %s
+// CHECK-CPUV81A: "-cc1"{{.*}} "-triple" "armv8.1a-{{.*}}
+
+// RUN: %clang -target armeb -mcpu=generic-armv8.1-a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV81A %s
+// RUN: %clang -target arm -mcpu=generic-armv8.1-a -mbig-endian -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV81A %s
+// CHECK-BE-CPUV81A: "-cc1"{{.*}} "-triple" "armebv8.1a-{{.*}}
+
+// RUN: %clang -target arm -mcpu=generic-armv8.1-a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV81A-THUMB %s
+// RUN: %clang -target arm -mcpu=generic-armv8.1-a -mlittle-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV81A-THUMB %s
+// CHECK-CPUV81A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8.1a-{{.*}}
+
+// RUN: %clang -target armeb -mcpu=generic-armv8.1-a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV81A-THUMB %s
+// RUN: %clang -target arm -mcpu=generic-armv8.1-a -mbig-endian -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV81A-THUMB %s
+// CHECK-BE-CPUV81A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8.1a-{{.*}}
+
Index: test/Preprocessor/aarch64-target-features.c
===================================================================
--- test/Preprocessor/aarch64-target-features.c
+++ test/Preprocessor/aarch64-target-features.c
@@ -109,3 +109,11 @@
// RUN: %clang -target aarch64 -march=armv8-a+neon -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-ERROR-NEON %s
// RUN: %clang -target aarch64 -march=armv8-a+noneon -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-ERROR-NEON %s
// CHECK-ERROR-NEON: error: [no]neon is not accepted as modifier, please use [no]simd instead
+
+// RUN: %clang -target aarch64 -mcpu=generic-armv8.1-a+crypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-FEATURE-1 %s
+// RUN: %clang -target aarch64 -mcpu=generic-armv8.1-a+nocrypto -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-FEATURE-2 %s
+// RUN: %clang -target aarch64 -mcpu=generic-armv8.1-a+nosimd -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V81A-FEATURE-3 %s
+// CHECK-V81A-FEATURE-1: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "+crypto"
+// CHECK-V81A-FEATURE-2: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "+neon" "-target-feature" "-crypto"
+// CHECK-V81A-FEATURE-3: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-feature" "-neon"
+
Index: test/Preprocessor/arm-target-features.c
===================================================================
--- test/Preprocessor/arm-target-features.c
+++ test/Preprocessor/arm-target-features.c
@@ -316,3 +316,9 @@
// KRAIT-THUMB:#define __ARM_ARCH_EXT_IDIV__ 1
// KRAIT-THUMB:#define __ARM_FEATURE_DSP
// KRAIT-THUMB:#define __ARM_VFPV4__ 1
+
+// RUN: %clang -target armv8.1a-none-none-eabi -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-V81A %s
+// CHECK-V81A: __ARM_ARCH 8
+// CHECK-V81A: __ARM_ARCH_8_1A__ 1
+// CHECK-V81A: #define __ARM_ARCH_PROFILE 'A'
+
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