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Refactoring of how ARMTargetInfo handles default target features.

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Differential Revision: http://reviews.llvm.org/D11299

llvm-svn: 246946
This commit is contained in:
Alexandros Lamprineas 2015-09-06 16:15:45 +00:00
parent 8391ac7001
commit 94d75dba14
2 changed files with 39 additions and 33 deletions
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45
clang/lib/Basic/Targets.cpp
View File

@ -4442,37 +4442,20 @@ public:
bool initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
StringRef CPU,
std::vector<std::string> &FeaturesVec) const override {
if (CPU == "arm1136jf-s" || CPU == "arm1176jzf-s" || CPU == "mpcore")
Features["vfp2"] = true;
else if (CPU == "cortex-a8" || CPU == "cortex-a9") {
Features["vfp3"] = true;
Features["neon"] = true;
}
else if (CPU == "cortex-a5") {
Features["vfp4"] = true;
Features["neon"] = true;
} else if (CPU == "swift" || CPU == "cortex-a7" ||
CPU == "cortex-a12" || CPU == "cortex-a15" ||
CPU == "cortex-a17" || CPU == "krait") {
Features["vfp4"] = true;
Features["neon"] = true;
Features["hwdiv"] = true;
Features["hwdiv-arm"] = true;
} else if (CPU == "cyclone" || CPU == "cortex-a53" || CPU == "cortex-a57" ||
CPU == "cortex-a72") {
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" || ArchVersion == 8) {
Features["hwdiv"] = true;
Features["hwdiv-arm"] = true;
} else if (CPU == "cortex-m3" || CPU == "cortex-m4" || CPU == "cortex-m7" ||
CPU == "sc300" || CPU == "cortex-r4" || CPU == "cortex-r4f") {
Features["hwdiv"] = true;
}
std::vector<const char*> TargetFeatures;
// get default FPU features
unsigned FPUKind = llvm::ARM::getDefaultFPU(CPU);
llvm::ARM::getFPUFeatures(FPUKind, TargetFeatures);
// get default Extension features
unsigned Extensions = llvm::ARM::getDefaultExtensions(CPU);
llvm::ARM::getExtensionFeatures(Extensions, TargetFeatures);
for (const char *Feature : TargetFeatures)
if (Feature[0] == '+')
Features[Feature+1] = true;
if (ArchVersion < 6 ||
(ArchVersion == 6 && ArchProfile == llvm::ARM::PK_M))

27
clang/test/CodeGen/arm-target-features.c
View File

@ -1,10 +1,13 @@
// REQUIRES: arm-registered-target
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a8 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-a9 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3
// CHECK-VFP3: "target-features"="+neon,+vfp3"
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-a9 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-FP16
// CHECK-VFP3-FP16: "target-features"="+fp16,+neon,+vfp3"
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4
// CHECK-VFP4: "target-features"="+neon,+vfp4"
@ -25,10 +28,30 @@
// CHECK-BASIC-V8: "target-features"="+crc,+crypto,+fp-armv8,+hwdiv,+hwdiv-arm,+neon"
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r5f -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-DIV
// CHECK-VFP3-D16-DIV: "target-features"="+d16,+hwdiv,+hwdiv-arm,+vfp3"
// RUN: %clang_cc1 -triple armv7-linux-gnueabi -target-cpu cortex-r4f -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-THUMB-DIV
// CHECK-VFP3-D16-THUMB-DIV: "target-features"="+d16,+hwdiv,+vfp3"
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-FP16-DIV
// CHECK-VFP3-D16-FP16-DIV: "target-features"="+d16,+fp16,+hwdiv,+hwdiv-arm,+vfp3"
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m4f -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-D16-SP-THUMB-DIV
// CHECK-VFP4-D16-SP-THUMB-DIV: "target-features"="+d16,+fp-only-sp,+hwdiv,+vfp4"
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP5-D16-THUMB-DIV
// CHECK-VFP5-D16-THUMB-DIV: "target-features"="+d16,+fp-armv8,+hwdiv"
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-DIV
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-DIV
// CHECK-DIV: "target-features"="+hwdiv,+hwdiv-arm"
// RUN: %clang_cc1 -triple armv7-linux-gnueabi -target-cpu cortex-r4 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m3 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV
// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m4 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV