[AArch64] Define __ARM_FEATURE_RCPC

This patch implements the definition of __ARM_FEATURE_RCPC when clang
command specifies +rcpc.

Differential Revision: https://reviews.llvm.org/D127798

diff --git a/clang/lib/Basic/Targets/AArch64.cpp b/clang/lib/Basic/Targets/AArch64.cpp
index 85346eb..19e6cca 100644 (file)
--- a/clang/lib/Basic/Targets/AArch64.cpp
+++ b/clang/lib/Basic/Targets/AArch64.cpp
@@ -341,6 +341,9 @@ void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts,
   if (HasCRC)
     Builder.defineMacro("__ARM_FEATURE_CRC32", "1");
 
+  if (HasRCPC)
+    Builder.defineMacro("__ARM_FEATURE_RCPC", "1");
+
   // The __ARM_FEATURE_CRYPTO is deprecated in favor of finer grained feature
   // macros for AES, SHA2, SHA3 and SM4
   if (HasAES && HasSHA2)
@@ -551,6 +554,7 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
   HasMatmulFP32 = false;
   HasLSE = false;
   HasMOPS = false;
+  HasRCPC = false;
 
   ArchKind = llvm::AArch64::ArchKind::INVALID;
 
@@ -600,6 +604,8 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
     }
     if (Feature == "+crc")
       HasCRC = true;
+    if (Feature == "+rcpc")
+      HasRCPC = true;
     if (Feature == "+aes")
       HasAES = true;
     if (Feature == "+sha2")

diff --git a/clang/lib/Basic/Targets/AArch64.h b/clang/lib/Basic/Targets/AArch64.h
index e28a4c5..1930092 100644 (file)
--- a/clang/lib/Basic/Targets/AArch64.h
+++ b/clang/lib/Basic/Targets/AArch64.h
@@ -54,6 +54,7 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
   bool HasLSE;
   bool HasFlagM;
   bool HasMOPS;
+  bool HasRCPC;
 
   llvm::AArch64::ArchKind ArchKind;
 

diff --git a/clang/test/Preprocessor/aarch64-target-features.c b/clang/test/Preprocessor/aarch64-target-features.c
index 2d4ec2b..e0004ab 100644 (file)
--- a/clang/test/Preprocessor/aarch64-target-features.c
+++ b/clang/test/Preprocessor/aarch64-target-features.c
@@ -26,6 +26,7 @@
 // CHECK: __ARM_FEATURE_IDIV 1
 // CHECK: __ARM_FEATURE_LDREX 0xF
 // CHECK: __ARM_FEATURE_NUMERIC_MAXMIN 1
+// CHECK-NOT: __ARM_FEATURE_RCPC 1
 // CHECK-NOT: __ARM_FEATURE_SHA2 1
 // CHECK-NOT: __ARM_FEATURE_SHA3 1
 // CHECK-NOT: __ARM_FEATURE_SHA512 1
@@ -560,3 +561,6 @@
 // CHECK-BEFORE-V83-NOT: __ARM_FEATURE_COMPLEX 1
 // CHECK-BEFORE-V83-NOT: __ARM_FEATURE_JCVT 1
 // CHECK-BEFORE-V85-NOT: __ARM_FEATURE_FRINT 1
+
+// RUN: %clang --target=aarch64 -march=armv8.2-a+rcpc -x c -E -dM %s -o - | FileCheck --check-prefix=CHECK-RCPC %s
+// CHECK-RCPC: __ARM_FEATURE_RCPC 1