[ARM][AArch64] Complex addition Neon intrinsics for Armv8.3-A

Summary:
Add support for vcadd_* family of intrinsics. This set of intrinsics is
available in Armv8.3-A.

The fp16 versions require the FP16 extension, which has been available
(opt-in) since Armv8.2-A.

Reviewers: t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70862

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/lib/Basic/Targets/ARM.cpp b/clang/lib/Basic/Targets/ARM.cpp
index 437a77afdc9..be088e81cff 100644
--- a/clang/lib/Basic/Targets/ARM.cpp
+++ b/clang/lib/Basic/Targets/ARM.cpp
@@ -580,6 +580,13 @@ void ARMTargetInfo::getTargetDefinesARMV82A(const LangOptions &Opts,
   getTargetDefinesARMV81A(Opts, Builder);
 }
 
+void ARMTargetInfo::getTargetDefinesARMV83A(const LangOptions &Opts,
+                                            MacroBuilder &Builder) const {
+  // Also include the ARMv8.2-A defines
+  Builder.defineMacro("__ARM_FEATURE_COMPLEX", "1");
+  getTargetDefinesARMV82A(Opts, Builder);
+}
+
 void ARMTargetInfo::getTargetDefines(const LangOptions &Opts,
                                      MacroBuilder &Builder) const {
   // Target identification.
@@ -809,6 +816,11 @@ void ARMTargetInfo::getTargetDefines(const LangOptions &Opts,
   case llvm::ARM::ArchKind::ARMV8_2A:
     getTargetDefinesARMV82A(Opts, Builder);
     break;
+  case llvm::ARM::ArchKind::ARMV8_3A:
+  case llvm::ARM::ArchKind::ARMV8_4A:
+  case llvm::ARM::ArchKind::ARMV8_5A:
+    getTargetDefinesARMV83A(Opts, Builder);
+    break;
   }
 }