[clang] [llvm] Implement a subset of builtin_cpu_supports() features (PR #82809)

zhijian lin via cfe-commits cfe-commits at lists.llvm.org
Tue Mar 5 11:23:33 PST 2024


https://github.com/diggerlin updated https://github.com/llvm/llvm-project/pull/82809

>From 557e7163d744890aadfa703a81a0c4f2cd112517 Mon Sep 17 00:00:00 2001
From: zhijian <zhijian at ca.ibm.com>
Date: Fri, 23 Feb 2024 13:23:18 -0500
Subject: [PATCH 1/2] Implement a subset of builtin_cpu_supports() features

---
 clang/lib/Basic/Targets/PPC.cpp               |  15 +-
 clang/lib/Basic/Targets/PPC.h                 |   9 +-
 clang/lib/CodeGen/CGBuiltin.cpp               | 104 +++++++++++---
 clang/lib/Sema/SemaChecking.cpp               |   6 +-
 clang/test/CodeGen/aix-builtin-cpu-is.c       |   4 +-
 clang/test/CodeGen/aix-builtin-cpu-supports.c | 135 ++++++++++++++++++
 clang/test/Sema/aix-builtin-cpu-unsupports.c  |  40 +++++-
 .../test/Sema/builtin-cpu-unsupports-AIX-Os.c |   9 ++
 .../llvm/TargetParser/PPCTargetParser.def     |  73 +++++++++-
 9 files changed, 356 insertions(+), 39 deletions(-)
 create mode 100644 clang/test/CodeGen/aix-builtin-cpu-supports.c
 create mode 100644 clang/test/Sema/builtin-cpu-unsupports-AIX-Os.c

diff --git a/clang/lib/Basic/Targets/PPC.cpp b/clang/lib/Basic/Targets/PPC.cpp
index aebe51bfa4daad..1d488dff825ede 100644
--- a/clang/lib/Basic/Targets/PPC.cpp
+++ b/clang/lib/Basic/Targets/PPC.cpp
@@ -897,6 +897,19 @@ ArrayRef<Builtin::Info> PPCTargetInfo::getTargetBuiltins() const {
 }
 
 bool PPCTargetInfo::validateCpuSupports(StringRef FeatureStr) const {
+  llvm::Triple Triple = getTriple();
+  if (Triple.isOSAIX()) {
+#define PPC_AIX_FEATURE(NAME, DESC, SUPPORT_METHOD, INDEX, MASK, COMP_OP,      \
+                        VALUE)                                                 \
+  .Case(NAME, true)
+    return llvm::StringSwitch<bool>(FeatureStr)
+#include "llvm/TargetParser/PPCTargetParser.def"
+        .Default(false);
+  }
+
+  assert(Triple.isOSLinux() &&
+         "__builtin_cpu_supports() is only supported for AIX and Linux.");
+
 #define PPC_LNX_FEATURE(NAME, DESC, ENUMNAME, ENUMVAL, HWCAPN) .Case(NAME, true)
   return llvm::StringSwitch<bool>(FeatureStr)
 #include "llvm/TargetParser/PPCTargetParser.def"
@@ -906,7 +919,7 @@ bool PPCTargetInfo::validateCpuSupports(StringRef FeatureStr) const {
 bool PPCTargetInfo::validateCpuIs(StringRef CPUName) const {
   llvm::Triple Triple = getTriple();
   if (Triple.isOSAIX()) {
-#define PPC_AIX_CPU(NAME, SUPPORT, INDEX, OP, VALUE) .Case(NAME, true)
+#define PPC_AIX_CPU(NAME, SUPPORT_METHOD, INDEX, OP, VALUE) .Case(NAME, true)
     return llvm::StringSwitch<bool>(CPUName)
 #include "llvm/TargetParser/PPCTargetParser.def"
         .Default(false);
diff --git a/clang/lib/Basic/Targets/PPC.h b/clang/lib/Basic/Targets/PPC.h
index 70683916a8b04f..39b52d362f36b8 100644
--- a/clang/lib/Basic/Targets/PPC.h
+++ b/clang/lib/Basic/Targets/PPC.h
@@ -364,7 +364,14 @@ class LLVM_LIBRARY_VISIBILITY PPCTargetInfo : public TargetInfo {
   // have Glibc since it is Glibc that provides the HWCAP[2] in the auxv.
   static constexpr int MINIMUM_AIX_OS_MAJOR = 7;
   static constexpr int MINIMUM_AIX_OS_MINOR = 2;
-  bool supportsCpuSupports() const override { return getTriple().isOSGlibc(); }
+  bool supportsCpuSupports() const override {
+    llvm::Triple Triple = getTriple();
+    // AIX 7.2 is the minimum requirement to support __builtin_cpu_supports().
+    return Triple.isOSGlibc() ||
+           (Triple.isOSAIX() &&
+            !Triple.isOSVersionLT(MINIMUM_AIX_OS_MAJOR, MINIMUM_AIX_OS_MINOR));
+  }
+
   bool supportsCpuIs() const override {
     llvm::Triple Triple = getTriple();
     // AIX 7.2 is the minimum requirement to support __builtin_cpu_is().
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 9ee51ca7142c77..1565e4103d9ef8 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -16570,7 +16570,7 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
 
 #include "llvm/TargetParser/PPCTargetParser.def"
   auto GenAIXPPCBuiltinCpuExpr = [&](unsigned SupportMethod, unsigned FieldIdx,
-                                     unsigned CompOp,
+                                     unsigned Mask, unsigned CompOp,
                                      unsigned OpValue) -> Value * {
     if (SupportMethod == AIX_BUILTIN_PPC_FALSE)
       return llvm::ConstantInt::getFalse(ConvertType(E->getType()));
@@ -16578,24 +16578,64 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
     if (SupportMethod == AIX_BUILTIN_PPC_TRUE)
       return llvm::ConstantInt::getTrue(ConvertType(E->getType()));
 
-    assert(SupportMethod <= USE_SYS_CONF && "Invalid value for SupportMethod.");
-    assert((CompOp == COMP_EQ) && "Only equal comparisons are supported.");
+    assert(SupportMethod <= SYS_CALL && "Invalid value for SupportMethod.");
+
+    llvm::Value *FieldValue = nullptr;
+    if (SupportMethod == USE_SYS_CONF) {
+      llvm::Type *STy = llvm::StructType::get(PPC_SYSTEMCONFIG_TYPE);
+      llvm::Constant *SysConf =
+          CGM.CreateRuntimeVariable(STy, "_system_configuration");
+
+      // Grab the appropriate field from _system_configuration.
+      llvm::Value *Idxs[] = {ConstantInt::get(Int32Ty, 0),
+                             ConstantInt::get(Int32Ty, FieldIdx)};
+
+      FieldValue = Builder.CreateGEP(STy, SysConf, Idxs);
+      FieldValue = Builder.CreateAlignedLoad(Int32Ty, FieldValue,
+                                             CharUnits::fromQuantity(4));
+    } else if (SupportMethod == SYS_CALL) {
+      llvm::FunctionType *FTy =
+          llvm::FunctionType::get(Int64Ty, Int32Ty, false);
+      llvm::FunctionCallee Func =
+          CGM.CreateRuntimeFunction(FTy, "getsystemcfg");
+
+      FieldValue =
+          Builder.CreateCall(Func, {ConstantInt::get(Int32Ty, FieldIdx)});
+    }
+    assert((FieldValue != nullptr) &&
+           "SupportMethod value is not defined in PPCTargetParser.def.");
+
+    if (Mask)
+      FieldValue = Builder.CreateAnd(FieldValue, Mask);
 
-    llvm::Type *STy = llvm::StructType::get(PPC_SYSTEMCONFIG_TYPE);
-    llvm::Constant *SysConf =
-        CGM.CreateRuntimeVariable(STy, "_system_configuration");
+    CmpInst::Predicate PreOp;
+    switch (CompOp) {
+    case COMP_EQ:
+      PreOp = ICmpInst::ICMP_EQ;
+      break;
+    case COMP_GT:
+      PreOp = ICmpInst::ICMP_UGT;
+      break;
+    case COMP_GE:
+      PreOp = ICmpInst::ICMP_UGE;
+      break;
+    case COMP_NE:
+      PreOp = ICmpInst::ICMP_NE;
+      break;
+    default:
+      llvm_unreachable(
+          "Compare type does not match types defined in PPCTargetParser.def!");
+    }
 
-    // Grab the appropriate field from _system_configuration.
-    llvm::Value *Idxs[] = {ConstantInt::get(Int32Ty, 0),
-                           ConstantInt::get(Int32Ty, FieldIdx)};
+    llvm::Type *ValueType = FieldValue->getType();
+    bool IsValueType64Bit = ValueType->isIntegerTy(64);
+    assert(
+        (IsValueType64Bit || ValueType->isIntegerTy(32)) &&
+        "Only 32/64-bit integers are supported in GenAIXPPCBuiltinCpuExpr().");
 
-    llvm::Value *FieldValue = Builder.CreateGEP(STy, SysConf, Idxs);
-    FieldValue = Builder.CreateAlignedLoad(Int32Ty, FieldValue,
-                                           CharUnits::fromQuantity(4));
-    assert(FieldValue->getType()->isIntegerTy(32) &&
-           "Only 32-bit integers are supported in GenAIXPPCBuiltinCpuExpr().");
-    return Builder.CreateICmp(ICmpInst::ICMP_EQ, FieldValue,
-                              ConstantInt::get(Int32Ty, OpValue));
+    return Builder.CreateICmp(
+        PreOp, FieldValue,
+        ConstantInt::get(IsValueType64Bit ? Int64Ty : Int32Ty, OpValue));
   };
 
   switch (BuiltinID) {
@@ -16607,15 +16647,15 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
     llvm::Triple Triple = getTarget().getTriple();
 
     if (Triple.isOSAIX()) {
-      unsigned IsCpuSupport, FieldIdx, CompareOp, CpuIdValue;
+      unsigned SupportMethod, FieldIdx, CompareOp, CpuIdValue;
       typedef std::tuple<unsigned, unsigned, unsigned, unsigned> CPUType;
-      std::tie(IsCpuSupport, FieldIdx, CompareOp, CpuIdValue) =
+      std::tie(SupportMethod, FieldIdx, CompareOp, CpuIdValue) =
           static_cast<CPUType>(StringSwitch<CPUType>(CPUStr)
-#define PPC_AIX_CPU(NAME, SUPPORT_MAGIC, INDEX, COMPARE_OP, VALUE)             \
-  .Case(NAME, {SUPPORT_MAGIC, INDEX, COMPARE_OP, VALUE})
+#define PPC_AIX_CPU(NAME, SUPPORT_METHOD, INDEX, COMPARE_OP, VALUE)            \
+  .Case(NAME, {SUPPORT_METHOD, INDEX, COMPARE_OP, VALUE})
 #include "llvm/TargetParser/PPCTargetParser.def"
           );
-      return GenAIXPPCBuiltinCpuExpr(IsCpuSupport, FieldIdx, CompareOp,
+      return GenAIXPPCBuiltinCpuExpr(SupportMethod, FieldIdx, 0, CompareOp,
                                      CpuIdValue);
     }
 
@@ -16633,10 +16673,28 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
                                 llvm::ConstantInt::get(Int32Ty, NumCPUID));
   }
   case Builtin::BI__builtin_cpu_supports: {
-    unsigned FeatureWord;
-    unsigned BitMask;
+    llvm::Triple Triple = getTarget().getTriple();
     const Expr *CPUExpr = E->getArg(0)->IgnoreParenCasts();
     StringRef CPUStr = cast<clang::StringLiteral>(CPUExpr)->getString();
+    if (Triple.isOSAIX()) {
+      unsigned SupportMethod, FieldIdx, Mask, CompOp, Value;
+      typedef std::tuple<unsigned, unsigned, unsigned, unsigned, unsigned>
+          CPUSupportType;
+      std::tie(SupportMethod, FieldIdx, Mask, CompOp, Value) =
+          static_cast<CPUSupportType>(StringSwitch<CPUSupportType>(CPUStr)
+#define PPC_AIX_FEATURE(NAME, DESC, SUPPORT_METHOD, INDEX, MASK, COMP_OP,      \
+                        VALUE)                                                 \
+  .Case(NAME, {SUPPORT_METHOD, INDEX, MASK, COMP_OP, VALUE})
+#include "llvm/TargetParser/PPCTargetParser.def"
+          );
+      return GenAIXPPCBuiltinCpuExpr(SupportMethod, FieldIdx, Mask, CompOp,
+                                     Value);
+    }
+
+    assert(Triple.isOSLinux() &&
+           "__builtin_cpu_supports() is only supported for AIX and Linux.");
+    unsigned FeatureWord;
+    unsigned BitMask;
     std::tie(FeatureWord, BitMask) =
         StringSwitch<std::pair<unsigned, unsigned>>(CPUStr)
 #define PPC_LNX_FEATURE(Name, Description, EnumName, Bitmask, FA_WORD)         \
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 2cda1d08784ece..6071cb7655b724 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -2162,10 +2162,8 @@ static bool SemaBuiltinCpu(Sema &S, const TargetInfo &TI, CallExpr *TheCall,
   if (!SupportsBI(&TI) && SupportsBI(AuxTI))
     TheTI = AuxTI;
 
-  if (IsCPUSupports && !TheTI->supportsCpuSupports())
-    return S.Diag(TheCall->getBeginLoc(), diag::err_builtin_target_unsupported)
-           << SourceRange(TheCall->getBeginLoc(), TheCall->getEndLoc());
-  if (!IsCPUSupports && !TheTI->supportsCpuIs())
+  if ((!IsCPUSupports && !TheTI->supportsCpuIs()) ||
+      (IsCPUSupports && !TheTI->supportsCpuSupports()))
     return S.Diag(TheCall->getBeginLoc(),
                   TI.getTriple().isOSAIX()
                       ? diag::err_builtin_aix_os_unsupported
diff --git a/clang/test/CodeGen/aix-builtin-cpu-is.c b/clang/test/CodeGen/aix-builtin-cpu-is.c
index b0a0dec41b56c0..e17cf7353511a2 100644
--- a/clang/test/CodeGen/aix-builtin-cpu-is.c
+++ b/clang/test/CodeGen/aix-builtin-cpu-is.c
@@ -57,12 +57,12 @@
 // CHECK-NEXT:   ret i32 0
 // CHECK-NEXT: }
 
-// CHECKOP: @_system_configuration = external global { i32, i32, i32 }
+// CHECKOP: @_system_configuration = external global { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i32, i32, i32, i32, i64, i64, i64, i64, i32, i32, i32, i32, i32, i32, i64, i32, i8, i8, i8, i8, i32, i32, i16, i16, [3 x i32], i32 }
 // CHECKOP:   define i32 @main() #0 {
 // CHECKOP-NEXT: entry:
 // CHECKOP-NEXT:   %retval = alloca i32, align 4
 // CHECKOP-NEXT:   store i32 0, ptr %retval, align 4
-// CHECKOP-NEXT:   %0 = load i32, ptr getelementptr inbounds ({ i32, i32, i32 }, ptr @_system_configuration, i32 0, i32 1), align 4
+// CHECKOP-NEXT:   %0 = load i32, ptr getelementptr inbounds ({ i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i32, i32, i32, i32, i64, i64, i64, i64, i32, i32, i32, i32, i32, i32, i64, i32, i8, i8, i8, i8, i32, i32, i16, i16, [3 x i32], i32 }, ptr @_system_configuration, i32 0, i32 1), align 4
 // CHECKOP-NEXT:   %1 = icmp eq i32 %0, [[VALUE]] 
 // CHECKOP-NEXT:  %conv = zext i1 %1 to i32
 // CHECKOP-NEXT:   ret i32 %conv
diff --git a/clang/test/CodeGen/aix-builtin-cpu-supports.c b/clang/test/CodeGen/aix-builtin-cpu-supports.c
new file mode 100644
index 00000000000000..db144fd318f7b2
--- /dev/null
+++ b/clang/test/CodeGen/aix-builtin-cpu-supports.c
@@ -0,0 +1,135 @@
+// RUN: echo "int main() { return __builtin_cpu_supports(\"4xxmac\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"altivec\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=46 -DOP=ugt -DBIT=i32 -DVALUE=0 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"booke\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"cellbe\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"darn\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=262144 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"efpdouble\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"efpsingle\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"pa6t\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"fpu\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"htm\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=ugt -DLABLE=59  -DBIT=i64 -DVALUE=0 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCALL
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"mma\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=ugt -DLABLE=62 -DBIT=i64 -DVALUE=0 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCALL
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"mmu\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"arch_2_05\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"arch_2_06\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=32768 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"arch_2_07\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=65536 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"arch_3_00\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=131072 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"arch_3_1\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=262144 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"dfp\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=53 -DOP=ne -DBIT=i32 -DVALUE=0 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"power4\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"power5\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"power5+\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"power6x\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"ppc32\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"ppc601\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"ppc64\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"ppcle\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"smt\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=44 -DMASK=3 -DOP=eq -DBIT=i32 -DVALUE=3 \
+// RUN:   --check-prefixes=CHECKOP,OPMASK,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"spe\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"true_le\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"ucache\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=5 -DMASK=2 -DOP=eq -DBIT=i32 -DVALUE=2 \
+// RUN:   --check-prefixes=CHECKOP,OPMASK,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"vsx\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=46 -DOP=ugt -DBIT=i32 -DVALUE=1 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// CHECK:     define i32 @main() #0 {
+// CHECK-NEXT: entry:
+// CHECK-NEXT:   %retval = alloca i32, align 4
+// CHECK-NEXT:   store i32 0, ptr %retval, align 4
+// CHECK-NEXT:   ret i32 [[BOOL]]
+// CHECK-NEXT: }
+
+// SYSCONF: @_system_configuration = external global { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i32, i32, i32, i32, i64, i64, i64, i64, i32, i32, i32, i32, i32, i32, i64, i32, i8, i8, i8, i8, i32, i32, i16, i16, [3 x i32], i32 }
+
+// CHECKOP:   define i32 @main() #0 {
+// CHECKOP-NEXT: entry:
+// CHECKOP-NEXT:   %retval = alloca i32, align 4
+// CHECKOP-NEXT:   store i32 0, ptr %retval, align 4
+
+// SYSCONF-NEXT:   %0 = load i32, ptr getelementptr inbounds ({ i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i32, i32, i32, i32, i64, i64, i64, i64, i32, i32, i32, i32, i32, i32, i64, i32, i8, i8, i8, i8, i32, i32, i16, i16, [3 x i32], i32 }, ptr @_system_configuration, i32 0, i32 [[POS]]), align 4
+// SYSCALL-NEXT:  %0 = call i64 @getsystemcfg(i32 [[LABLE]])
+
+// OPRT-NEXT:  %1 = icmp [[OP]] [[BIT]] %0, [[VALUE]]
+// OPRT-NEXT:     %conv = zext i1 %1 to i32
+
+// OPMASK-NEXT:  %1 = and i32 %0, [[MASK]]
+// OPMASK-NEXT:  %2 = icmp [[OP]] i32 %1, [[VALUE]]
+// OPMASK-NEXT:  %conv = zext i1 %2 to i32
+
+// CHECKOP-NEXT:   ret i32 %conv
+// CHECKOP-NEXT: }
+
+// SYSCALL: declare i64 @getsystemcfg(i32)
+
+
diff --git a/clang/test/Sema/aix-builtin-cpu-unsupports.c b/clang/test/Sema/aix-builtin-cpu-unsupports.c
index 10e21867c39373..39cf3aea747f6e 100644
--- a/clang/test/Sema/aix-builtin-cpu-unsupports.c
+++ b/clang/test/Sema/aix-builtin-cpu-unsupports.c
@@ -1,6 +1,42 @@
-// RUN: %clang_cc1 -fsyntax-only -triple  powerpc-ibm-aix7.1.0.0 -verify %s
+// RUN: %clang_cc1 -fsyntax-only -triple powerpc-ibm-aix7.2.0.0 -verify %s
 
 int main(void) {
-  if (__builtin_cpu_is("power8")) // expected-error {{this builtin is available only on AIX 7.2 and later operating systems}}
+  if (__builtin_cpu_supports("aes")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("archpmu")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("dscr")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("ebb")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("htm-nosc")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("htm-no-suspend")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("ic_snoop")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("ieee128")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("isel")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("notb")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("scv")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("tar")) // expected-error {{invalid cpu feature string for builtin}}
+    return 1;
+
+  if (__builtin_cpu_supports("vcrypto")) // expected-error {{invalid cpu feature string for builtin}}
     return 1;
 }
diff --git a/clang/test/Sema/builtin-cpu-unsupports-AIX-Os.c b/clang/test/Sema/builtin-cpu-unsupports-AIX-Os.c
new file mode 100644
index 00000000000000..25d25b2ac4c924
--- /dev/null
+++ b/clang/test/Sema/builtin-cpu-unsupports-AIX-Os.c
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -fsyntax-only -triple  powerpc-ibm-aix7.1.0.0 -verify %s
+
+int main(void) {
+  if (__builtin_cpu_is("power8")) // expected-error {{this builtin is available only on AIX 7.2 and later operating systems}}
+    return 1;
+
+  if (__builtin_cpu_supports("power8")) // expected-error {{this builtin is available only on AIX 7.2 and later operating systems}}
+    return 1;
+}
diff --git a/llvm/include/llvm/TargetParser/PPCTargetParser.def b/llvm/include/llvm/TargetParser/PPCTargetParser.def
index 88c7304659c4d9..bae4baf8422609 100644
--- a/llvm/include/llvm/TargetParser/PPCTargetParser.def
+++ b/llvm/include/llvm/TargetParser/PPCTargetParser.def
@@ -132,6 +132,14 @@ PPC_LNX_CPU("power10",47)
 #ifndef AIX_POWERPC_USE_SYS_CONF
   #define AIX_POWERPC_USE_SYS_CONF
   #define AIX_SYSCON_IMPL_IDX 1
+  #define AIX_SYSCON_CACHE_IDX 5
+  #define AIX_SYSCON_SMT_IDX 44
+  #define AIX_SYSCON_VMX_IDX 46
+  #define AIX_SYSCON_DFP_IDX  53
+
+  #define SYS_CALL_TM_VER   59
+  #define SYS_CALL_MMA_VER  62
+
   #define AIX_PPC7_VALUE 0x00008000
   #define AIX_PPC8_VALUE 0x00010000
   #define AIX_PPC9_VALUE 0x00020000
@@ -141,23 +149,30 @@ PPC_LNX_CPU("power10",47)
   #define AIX_BUILTIN_PPC_TRUE 1
   #define AIX_BUILTIN_PPC_FALSE 0
   #define USE_SYS_CONF 2
+  #define SYS_CALL 3
 
   // Supported COMPARE_OP values.
   #define COMP_EQ  0
+  #define COMP_GT 1
+  #define COMP_GE 2
+  #define COMP_NE 3
 
 #endif
 
 // The value of SUPPORT_METHOD can be AIX_BUILTIN_PPC_TRUE,
-// AIX_BUILTIN_PPC_FALSE, or USE_SYS_CONF.
-// When the value of SUPPORT_METHOD is USE_SYS_CONF, the return value
-// depends on the result of comparing the data member of
-// _system_configuration specified by INDEX with a certain value.
+// AIX_BUILTIN_PPC_FALSE, USE_SYS_CONF, SYS_CALL.
+// When the value of SUPPORT_METHOD is set to USE_SYS_CONF, the return value
+// depends on comparing VALUE with the specified data member of
+// _system_configuration at INDEX, where the data member is masked by Mask.
+// When the SUPPORT_METHOD value is set to SYS_CALL, the return value depends
+// on comparing a VALUE with the return value of calling `getsystemcfg`
+//  with the parameter INDEX, which is then masked by Mask.
 
 #ifndef PPC_AIX_CPU
   #define PPC_AIX_CPU(NAME, SUPPORT_METHOD, INDEX, COMPARE_OP, VALUE)
 #endif
 
-// __builtin_cpu_is() is supported only on Power7 and up.
+// __builtin_cpu_is() and __builtin_cpu_supports() are supported only on Power7 and up.
 PPC_AIX_CPU("power4",AIX_BUILTIN_PPC_FALSE,0,0,0)
 PPC_AIX_CPU("ppc970",AIX_BUILTIN_PPC_FALSE,0,0,0)
 PPC_AIX_CPU("power5",AIX_BUILTIN_PPC_FALSE,0,0,0)
@@ -176,11 +191,57 @@ PPC_AIX_CPU("power9",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,COMP_EQ,AIX_PPC9_VALUE)
 PPC_AIX_CPU("power10",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,COMP_EQ,AIX_PPC10_VALUE)
 #undef PPC_AIX_CPU
 
+#ifndef PPC_AIX_FEATURE
+#define PPC_AIX_FEATURE(NAME,DESC,SUPPORT_METHOD,INDEX,MASK,COMPARE_OP,VALUE)
+#endif
+
+PPC_AIX_FEATURE("4xxmac","4xx CPU has a Multiply Accumulator",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("altivec","CPU has a SIMD/Vector Unit",USE_SYS_CONF,AIX_SYSCON_VMX_IDX,0,COMP_GT,0)
+PPC_AIX_FEATURE("arch_2_05","CPU supports ISA 205 (eg, POWER6)",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("arch_2_06","CPU supports ISA 206 (eg, POWER7)",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC7_VALUE)
+PPC_AIX_FEATURE("arch_2_07","CPU supports ISA 207 (eg, POWER8)",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC8_VALUE)
+PPC_AIX_FEATURE("arch_3_00","CPU supports ISA 30 (eg, POWER9)", USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC9_VALUE)
+PPC_AIX_FEATURE("arch_3_1","CPU supports ISA 31 (eg, POWER10)", USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC10_VALUE)
+PPC_AIX_FEATURE("booke","CPU supports the Embedded ISA category",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("cellbe","CPU has a CELL broadband engine",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("darn","CPU supports the darn (deliver a random number) instruction",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC10_VALUE)
+PPC_AIX_FEATURE("dfp","CPU has a decimal floating point unit",USE_SYS_CONF,AIX_SYSCON_DFP_IDX,0,COMP_NE,0)
+PPC_AIX_FEATURE("efpsingle","CPU has a SPE single precision floating point unit",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("efpdouble","CPU has a SPE double precision floating point unit",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("fpu","CPU has a floating point unit",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("htm","CPU has hardware transaction memory instructions",SYS_CALL,SYS_CALL_TM_VER,0,COMP_GT,0)
+PPC_AIX_FEATURE("mma","CPU supports the matrix-multiply assist instructions",SYS_CALL,SYS_CALL_MMA_VER,0,COMP_GT,0)
+PPC_AIX_FEATURE("mmu","CPU has a memory management unit",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("pa6t","CPU supports the PA Semi 6T CORE ISA",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("power4","CPU supports ISA 200 (eg, POWER4)",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("power5","CPU supports ISA 202 (eg, POWER5)",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("power5+","CPU supports ISA 203 (eg, POWER5+)",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("power6x","CPU supports ISA 205 (eg, POWER6)",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("ppc32","CPU supports 32-bit mode execution",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("ppc601","CPU supports the old POWER ISA (eg, 601)",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("ppc64","CPU supports 64-bit mode execution",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("ppcle","CPU supports a little-endian mode that uses address swizzling",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("smt","CPU support simultaneous multi-threading",USE_SYS_CONF,AIX_SYSCON_SMT_IDX,0x3,COMP_EQ,0x3)
+PPC_AIX_FEATURE("spe","CPU has a signal processing extension unit",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("true_le","CPU supports true little-endian mode",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
+PPC_AIX_FEATURE("ucache","CPU has unified I/D cache",USE_SYS_CONF,AIX_SYSCON_CACHE_IDX,0x00000002,COMP_EQ,0x00000002)
+PPC_AIX_FEATURE("vsx","CPU supports the vector-scalar extension",USE_SYS_CONF,AIX_SYSCON_VMX_IDX,0,COMP_GT,1)
+#undef PPC_AIX_FEATURE
+
 // PPC_SYSTEMCONFIG_TYPE defines the IR data structure of kernel variable
 // `_system_configuration`, that is found in the AIX OS header file: </usr/include/sys/systemcfg.h>.
 #ifndef PPC_SYSTEMCONFIG_TYPE
 #define PPC_SYSTEMCONFIG_TYPE \
-Int32Ty, Int32Ty, Int32Ty
+Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, \
+Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, \
+Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, \
+Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, \
+Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, \
+Int32Ty, Int32Ty, Int64Ty, Int32Ty, Int32Ty, Int32Ty, \
+Int32Ty, Int64Ty, Int64Ty, Int64Ty, Int64Ty, Int32Ty, \
+Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int32Ty, Int64Ty, \
+Int32Ty, Int8Ty, Int8Ty, Int8Ty, Int8Ty, Int32Ty, \
+Int32Ty, Int16Ty, Int16Ty, llvm::ArrayType::get(Int32Ty,3), Int32Ty
 #endif
 
 #endif // !PPC_TGT_PARSER_UNDEF_MACROS

>From 814011f9a5c3c638a606aa0e19e55203769237b7 Mon Sep 17 00:00:00 2001
From: zhijian <zhijian at ca.ibm.com>
Date: Tue, 5 Mar 2024 14:23:22 -0500
Subject: [PATCH 2/2] rebased the code and add 4 new features

---
 clang/lib/CodeGen/CGBuiltin.cpp               |  7 ++--
 clang/test/CodeGen/aix-builtin-cpu-supports.c | 36 +++++++++++++++++++
 clang/test/Sema/aix-builtin-cpu-unsupports.c  | 30 +++++-----------
 .../llvm/TargetParser/PPCTargetParser.def     |  4 +++
 4 files changed, 53 insertions(+), 24 deletions(-)

diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 1565e4103d9ef8..52c7744331605c 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -16654,7 +16654,7 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
 #define PPC_AIX_CPU(NAME, SUPPORT_METHOD, INDEX, COMPARE_OP, VALUE)            \
   .Case(NAME, {SUPPORT_METHOD, INDEX, COMPARE_OP, VALUE})
 #include "llvm/TargetParser/PPCTargetParser.def"
-          );
+                                   .Default({AIX_BUILTIN_PPC_FALSE, 0, 0, 0}));
       return GenAIXPPCBuiltinCpuExpr(SupportMethod, FieldIdx, 0, CompareOp,
                                      CpuIdValue);
     }
@@ -16681,12 +16681,13 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
       typedef std::tuple<unsigned, unsigned, unsigned, unsigned, unsigned>
           CPUSupportType;
       std::tie(SupportMethod, FieldIdx, Mask, CompOp, Value) =
-          static_cast<CPUSupportType>(StringSwitch<CPUSupportType>(CPUStr)
+          static_cast<CPUSupportType>(
+              StringSwitch<CPUSupportType>(CPUStr)
 #define PPC_AIX_FEATURE(NAME, DESC, SUPPORT_METHOD, INDEX, MASK, COMP_OP,      \
                         VALUE)                                                 \
   .Case(NAME, {SUPPORT_METHOD, INDEX, MASK, COMP_OP, VALUE})
 #include "llvm/TargetParser/PPCTargetParser.def"
-          );
+                  .Default({AIX_BUILTIN_PPC_FALSE, 0, 0, 0, 0}));
       return GenAIXPPCBuiltinCpuExpr(SupportMethod, FieldIdx, Mask, CompOp,
                                      Value);
     }
diff --git a/clang/test/CodeGen/aix-builtin-cpu-supports.c b/clang/test/CodeGen/aix-builtin-cpu-supports.c
index db144fd318f7b2..84aec5934586bc 100644
--- a/clang/test/CodeGen/aix-builtin-cpu-supports.c
+++ b/clang/test/CodeGen/aix-builtin-cpu-supports.c
@@ -5,6 +5,9 @@
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=46 -DOP=ugt -DBIT=i32 -DVALUE=0 \
 // RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
 
+// RUN: echo "int main() { return __builtin_cpu_supports(\"archpmu\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
 // RUN: echo "int main() { return __builtin_cpu_supports(\"booke\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
 
@@ -15,6 +18,14 @@
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=262144 \
 // RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
 
+// RUN: echo "int main() { return __builtin_cpu_supports(\"dscr\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=65536 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"ebb\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=65536 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
 // RUN: echo "int main() { return __builtin_cpu_supports(\"efpdouble\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
 
@@ -31,6 +42,18 @@
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=ugt -DLABLE=59  -DBIT=i64 -DVALUE=0 \
 // RUN:   --check-prefixes=CHECKOP,OPRT,SYSCALL
 
+// RUN: echo "int main() { return __builtin_cpu_supports(\"htm-nosc\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"htm-no-suspend\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"ic_snoop\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"isel\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
+
 // RUN: echo "int main() { return __builtin_cpu_supports(\"mma\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=ugt -DLABLE=62 -DBIT=i64 -DVALUE=0 \
 // RUN:   --check-prefixes=CHECKOP,OPRT,SYSCALL
@@ -38,6 +61,9 @@
 // RUN: echo "int main() { return __builtin_cpu_supports(\"mmu\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
 
+// RUN: echo "int main() { return __builtin_cpu_supports(\"notb\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
 // RUN: echo "int main() { return __builtin_cpu_supports(\"arch_2_05\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
 
@@ -92,6 +118,13 @@
 // RUN: echo "int main() { return __builtin_cpu_supports(\"spe\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
 
+// RUN: echo "int main() { return __builtin_cpu_supports(\"scv\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
+// RUN: echo "int main() { return __builtin_cpu_supports(\"tar\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=1 -DOP=uge -DBIT=i32 -DVALUE=65536 \
+// RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
+
 // RUN: echo "int main() { return __builtin_cpu_supports(\"true_le\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=1 %s
 
@@ -99,6 +132,9 @@
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=5 -DMASK=2 -DOP=eq -DBIT=i32 -DVALUE=2 \
 // RUN:   --check-prefixes=CHECKOP,OPMASK,SYSCONF
 
+// RUN: echo "int main() { return __builtin_cpu_supports(\"vcrypto\");}" > %t.c
+// RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck -DBOOL=0 %s
+
 // RUN: echo "int main() { return __builtin_cpu_supports(\"vsx\");}" > %t.c
 // RUN: %clang_cc1 -triple powerpc-ibm-aix7.2.0.0 -emit-llvm -o - %t.c | FileCheck %s -DPOS=46 -DOP=ugt -DBIT=i32 -DVALUE=1 \
 // RUN:   --check-prefixes=CHECKOP,OPRT,SYSCONF
diff --git a/clang/test/Sema/aix-builtin-cpu-unsupports.c b/clang/test/Sema/aix-builtin-cpu-unsupports.c
index 39cf3aea747f6e..e7ac780e4d0e5d 100644
--- a/clang/test/Sema/aix-builtin-cpu-unsupports.c
+++ b/clang/test/Sema/aix-builtin-cpu-unsupports.c
@@ -1,42 +1,30 @@
 // RUN: %clang_cc1 -fsyntax-only -triple powerpc-ibm-aix7.2.0.0 -verify %s
 
 int main(void) {
-  if (__builtin_cpu_supports("aes")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("aes")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("archpmu")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("archpmu")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("dscr")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("htm-nosc")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("ebb")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("htm-no-suspend")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("htm-nosc")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("ic_snoop")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("htm-no-suspend")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("ieee128")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("ic_snoop")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("notb")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("ieee128")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("scv")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 
-  if (__builtin_cpu_supports("isel")) // expected-error {{invalid cpu feature string for builtin}}
-    return 1;
-
-  if (__builtin_cpu_supports("notb")) // expected-error {{invalid cpu feature string for builtin}}
-    return 1;
-
-  if (__builtin_cpu_supports("scv")) // expected-error {{invalid cpu feature string for builtin}}
-    return 1;
-
-  if (__builtin_cpu_supports("tar")) // expected-error {{invalid cpu feature string for builtin}}
-    return 1;
-
-  if (__builtin_cpu_supports("vcrypto")) // expected-error {{invalid cpu feature string for builtin}}
+  if (__builtin_cpu_supports("vcrypto")) // expected-warning {{invalid cpu feature string for builtin}}
     return 1;
 }
diff --git a/llvm/include/llvm/TargetParser/PPCTargetParser.def b/llvm/include/llvm/TargetParser/PPCTargetParser.def
index bae4baf8422609..583bdf37e291ad 100644
--- a/llvm/include/llvm/TargetParser/PPCTargetParser.def
+++ b/llvm/include/llvm/TargetParser/PPCTargetParser.def
@@ -206,10 +206,13 @@ PPC_AIX_FEATURE("booke","CPU supports the Embedded ISA category",AIX_BUILTIN_PPC
 PPC_AIX_FEATURE("cellbe","CPU has a CELL broadband engine",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
 PPC_AIX_FEATURE("darn","CPU supports the darn (deliver a random number) instruction",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC10_VALUE)
 PPC_AIX_FEATURE("dfp","CPU has a decimal floating point unit",USE_SYS_CONF,AIX_SYSCON_DFP_IDX,0,COMP_NE,0)
+PPC_AIX_FEATURE("dscr","CPU supports the data stream control register",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC8_VALUE)
+PPC_AIX_FEATURE("ebb","CPU supports event base branching",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC8_VALUE)
 PPC_AIX_FEATURE("efpsingle","CPU has a SPE single precision floating point unit",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
 PPC_AIX_FEATURE("efpdouble","CPU has a SPE double precision floating point unit",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
 PPC_AIX_FEATURE("fpu","CPU has a floating point unit",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
 PPC_AIX_FEATURE("htm","CPU has hardware transaction memory instructions",SYS_CALL,SYS_CALL_TM_VER,0,COMP_GT,0)
+PPC_AIX_FEATURE("isel","CPU supports the integer select instruction",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
 PPC_AIX_FEATURE("mma","CPU supports the matrix-multiply assist instructions",SYS_CALL,SYS_CALL_MMA_VER,0,COMP_GT,0)
 PPC_AIX_FEATURE("mmu","CPU has a memory management unit",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
 PPC_AIX_FEATURE("pa6t","CPU supports the PA Semi 6T CORE ISA",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
@@ -223,6 +226,7 @@ PPC_AIX_FEATURE("ppc64","CPU supports 64-bit mode execution",AIX_BUILTIN_PPC_TRU
 PPC_AIX_FEATURE("ppcle","CPU supports a little-endian mode that uses address swizzling",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
 PPC_AIX_FEATURE("smt","CPU support simultaneous multi-threading",USE_SYS_CONF,AIX_SYSCON_SMT_IDX,0x3,COMP_EQ,0x3)
 PPC_AIX_FEATURE("spe","CPU has a signal processing extension unit",AIX_BUILTIN_PPC_FALSE,0,0,0,0)
+PPC_AIX_FEATURE("tar","CPU supports the target address register",USE_SYS_CONF,AIX_SYSCON_IMPL_IDX,0,COMP_GE,AIX_PPC8_VALUE)
 PPC_AIX_FEATURE("true_le","CPU supports true little-endian mode",AIX_BUILTIN_PPC_TRUE,0,0,0,0)
 PPC_AIX_FEATURE("ucache","CPU has unified I/D cache",USE_SYS_CONF,AIX_SYSCON_CACHE_IDX,0x00000002,COMP_EQ,0x00000002)
 PPC_AIX_FEATURE("vsx","CPU supports the vector-scalar extension",USE_SYS_CONF,AIX_SYSCON_VMX_IDX,0,COMP_GT,1)



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