[PATCH] D116939: [AArch64] clang support for Armv8.8/9.3 HBC

[Son Tuan Vu via Phabricator via cfe-commits]

tyb0807 updated this revision to Diff 398698.
tyb0807 edited the summary of this revision.
tyb0807 added a comment.

Update patch author in commit message.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116939/new/

https://reviews.llvm.org/D116939

Files:
  clang/lib/Basic/Targets/AArch64.cpp
  clang/lib/Basic/Targets/AArch64.h
  clang/test/Driver/aarch64-hbc.c
  llvm/include/llvm/Support/AArch64TargetParser.def
  llvm/include/llvm/Support/AArch64TargetParser.h
  llvm/lib/Support/AArch64TargetParser.cpp
  llvm/unittests/Support/TargetParserTest.cpp


Index: llvm/unittests/Support/TargetParserTest.cpp
===================================================================
--- llvm/unittests/Support/TargetParserTest.cpp
+++ llvm/unittests/Support/TargetParserTest.cpp
@@ -1518,6 +1518,7 @@
       {"sme-f64", "nosme-f64", "+sme-f64", "-sme-f64"},
       {"sme-i64", "nosme-i64", "+sme-i64", "-sme-i64"},
       {"pmuv3p4", "nopmuv3p4", "+perfmon", "-perfmon"},
+      {"hbc", "nohbc", "+hbc", "-hbc"},
   };
 
   for (unsigned i = 0; i < array_lengthof(ArchExt); i++) {
Index: llvm/lib/Support/AArch64TargetParser.cpp
===================================================================
--- llvm/lib/Support/AArch64TargetParser.cpp
+++ llvm/lib/Support/AArch64TargetParser.cpp
@@ -116,6 +116,8 @@
     Features.push_back("+sme-i64");
   if (Extensions & AArch64::AEK_PERFMON)
     Features.push_back("+perfmon");
+  if (Extensions & AArch64::AEK_HBC)
+    Features.push_back("+hbc");
 
   return true;
 }
Index: llvm/include/llvm/Support/AArch64TargetParser.h
===================================================================
--- llvm/include/llvm/Support/AArch64TargetParser.h
+++ llvm/include/llvm/Support/AArch64TargetParser.h
@@ -70,6 +70,7 @@
   AEK_SMEF64 =      1ULL << 38,
   AEK_SMEI64 =      1ULL << 39,
   AEK_PERFMON =     1ULL << 40,
+  AEK_HBC =         1ULL << 41,
 };
 
 enum class ArchKind {
Index: llvm/include/llvm/Support/AArch64TargetParser.def
===================================================================
--- llvm/include/llvm/Support/AArch64TargetParser.def
+++ llvm/include/llvm/Support/AArch64TargetParser.def
@@ -145,6 +145,7 @@
 AARCH64_ARCH_EXT_NAME("sme-f64",      AArch64::AEK_SMEF64,      "+sme-f64", "-sme-f64")
 AARCH64_ARCH_EXT_NAME("sme-i64",      AArch64::AEK_SMEI64,      "+sme-i64", "-sme-i64")
 AARCH64_ARCH_EXT_NAME("pmuv3p4",      AArch64::AEK_PERFMON,     "+perfmon", "-perfmon")
+AARCH64_ARCH_EXT_NAME("hbc",          AArch64::AEK_HBC,         "+hbc",  "-hbc")
 #undef AARCH64_ARCH_EXT_NAME
 
 #ifndef AARCH64_CPU_NAME
Index: clang/test/Driver/aarch64-hbc.c
===================================================================
--- /dev/null
+++ clang/test/Driver/aarch64-hbc.c
@@ -0,0 +1,12 @@
+// Test that target feature hbc is implemented and available correctly
+// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.8-a+hbc %s 2>&1 | FileCheck %s
+// CHECK: "-target-feature" "+hbc"
+
+// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.8-a+nohbc %s 2>&1 | FileCheck %s --check-prefix=NO_HBC
+// NO_HBC: "-target-feature" "-hbc"
+
+// RUN: %clang -### -target aarch64-none-none-eabi                  %s 2>&1 | FileCheck %s --check-prefix=ABSENT_HBC
+// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.8-a %s 2>&1 | FileCheck %s --check-prefix=ABSENT_HBC
+// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8.8-a %s 2>&1 | FileCheck %s --check-prefix=ABSENT_HBC
+// ABSENT_HBC-NOT: "-target-feature" "+hbc"
+// ABSENT_HBC-NOT: "-target-feature" "-hbc"
Index: clang/lib/Basic/Targets/AArch64.h
===================================================================
--- clang/lib/Basic/Targets/AArch64.h
+++ clang/lib/Basic/Targets/AArch64.h
@@ -53,6 +53,7 @@
   bool HasMatmulFP32;
   bool HasLSE;
   bool HasFlagM;
+  bool HasHBC;
 
   llvm::AArch64::ArchKind ArchKind;
 
Index: clang/lib/Basic/Targets/AArch64.cpp
===================================================================
--- clang/lib/Basic/Targets/AArch64.cpp
+++ clang/lib/Basic/Targets/AArch64.cpp
@@ -543,6 +543,7 @@
   HasMatmulFP64 = false;
   HasMatmulFP32 = false;
   HasLSE = false;
+  HasHBC = false;
 
   ArchKind = llvm::AArch64::ArchKind::INVALID;
 
@@ -658,6 +659,19 @@
       HasRandGen = true;
     if (Feature == "+flagm")
       HasFlagM = true;
+    if (Feature == "+hbc")
+      HasHBC = true;
+  }
+
+  HasHBC |= ArchKind == llvm::AArch64::ArchKind::ARMV8_8A ||
+            ArchKind == llvm::AArch64::ArchKind::ARMV9_3A;
+
+  // Check features that are manually disabled by command line options.
+  // This needs to be checked after architecture-related features are handled,
+  // making sure they are properly disabled when required.
+  for (const auto &Feature : Features) {
+    if (Feature == "-hbc")
+      HasHBC = false;
   }
 
   setDataLayout();

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