Commit 3311f374 authored by Jiangning Liu's avatar Jiangning Liu
Browse files

Add predicate for AArch64 crypto instructions. 

llvm-svn: 195069
parent c8b0a1ad

clang/include/clang/Basic/arm_neon.td

+3 −0
Original line number Diff line number Diff line
@@ -129,6 +129,7 @@ class Inst <string n, string p, string t, Op o> { 
  bit isScalarShift = 0;

  bit isVCVT_N = 0;

  bit isA64 = 0;

  bit isCrypto = 0;



  // Certain intrinsics have different names than their representative

  // instructions. This field allows us to handle this correctly when we
@@ -907,6 +908,7 @@ def VEXT_A64 : WInst<"vext", "dddi", 


////////////////////////////////////////////////////////////////////////////////

// Crypto

let isCrypto = 1 in {

def AESE : SInst<"vaese", "ddd", "QUc">;

def AESD : SInst<"vaesd", "ddd", "QUc">;

def AESMC : SInst<"vaesmc", "dd", "QUc">;
@@ -923,6 +925,7 @@ def SHA1SU0 : SInst<"vsha1su0", "dddd", "QUi">; 
def SHA256H : SInst<"vsha256h", "dddd", "QUi">;

def SHA256H2 : SInst<"vsha256h2", "dddd", "QUi">;

def SHA256SU1 : SInst<"vsha256su1", "dddd", "QUi">;

}



////////////////////////////////////////////////////////////////////////////////

// Permutation

clang/test/CodeGen/aarch64-neon-crypto.c

+4 −1
Original line number Diff line number Diff line 
// REQUIRES: aarch64-registered-target

// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +neon \

// RUN:   -ffp-contract=fast -S -O3 -o - %s | FileCheck %s

// RUN:   -target-feature +crypto -S -O3 -o - %s | FileCheck %s

// RUN: not %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +neon \

// RUN:   -S -O3 -o - %s 2>&1 | FileCheck --check-prefix=CHECK-NO-CRYPTO %s



// Test new aarch64 intrinsics and types
@@ -8,6 +10,7 @@ 


uint8x16_t test_vaeseq_u8(uint8x16_t data, uint8x16_t key) {

  // CHECK: test_vaeseq_u8

  // CHECK-NO-CRYPTO: warning: implicit declaration of function 'vaeseq_u8' is invalid in C99

  return vaeseq_u8(data, key);

  // CHECK: aese {{v[0-9]+}}.16b, {{v[0-9]+}}.16b

}

clang/utils/TableGen/NeonEmitter.cpp

+20 −0
Original line number Diff line number Diff line
@@ -2560,9 +2560,29 @@ void NeonEmitter::run(raw_ostream &OS) { 
    if (!isA64)

      continue;



    // Skip crypto temporarily, and will emit them all together at the end.

    bool isCrypto = R->getValueAsBit("isCrypto");

    if (isCrypto)

      continue;



    emitIntrinsic(OS, R, EmittedMap);

  }



  OS << "#ifdef __ARM_FEATURE_CRYPTO\n";



  for (unsigned i = 0, e = RV.size(); i != e; ++i) {

    Record *R = RV[i];



    // Skip crypto temporarily, and will emit them all together at the end.

    bool isCrypto = R->getValueAsBit("isCrypto");

    if (!isCrypto)

      continue;



    emitIntrinsic(OS, R, EmittedMap);

  }

  

  OS << "#endif\n\n";



  OS << "#endif\n\n";



  OS << "#undef __ai\n\n";