Commit d2e949ee authored by Roland McGrath's avatar Roland McGrath Committed by Fangrui Song
Browse files

[AArch64] Predefine __AARCH64_CMODEL_*__ as GCC does 

Make Clang on aarch64 targets predefine `__AARCH64_CMODEL_SMALL__`
or `__AARCH64_CMODEL_TINY__`, etc.  These are the names that GCC
uses for its predefines.

Reviewed By: tamur, MaskRay

Differential Revision: https://reviews.llvm.org/D75002
parent fc6057e3

clang/lib/Basic/Targets/AArch64.cpp

+7 −0
Original line number Diff line number Diff line
@@ -194,6 +194,13 @@ void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts, 
    Builder.defineMacro("__LP64__");

  }



  std::string CodeModel = getTargetOpts().CodeModel;

  if (CodeModel == "default")

    CodeModel = "small";

  for (char &c : CodeModel)

    c = toupper(c);

  Builder.defineMacro("__AARCH64_CMODEL_" + CodeModel + "__");



  // ACLE predefines. Many can only have one possible value on v8 AArch64.

  Builder.defineMacro("__ARM_ACLE", "200");

  Builder.defineMacro("__ARM_ARCH", "8");

clang/test/Preprocessor/init-aarch64.c

+10 −0
Original line number Diff line number Diff line
@@ -7,8 +7,10 @@ 


// AARCH64: #define _LP64 1

// AARCH64_BE-NEXT: #define __AARCH64EB__ 1

// AARCH64_BE-NEXT: #define __AARCH64_CMODEL_SMALL__ 1

// AARCH64_BE-NEXT: #define __AARCH_BIG_ENDIAN 1

// AARCH64_LE-NEXT: #define __AARCH64EL__ 1

// AARCH64_LE-NEXT: #define __AARCH64_CMODEL_SMALL__ 1

// AARCH64-NEXT: #define __ARM_64BIT_STATE 1

// AARCH64-NEXT: #define __ARM_ACLE 200

// AARCH64-NEXT: #define __ARM_ALIGN_MAX_STACK_PWR 4
@@ -689,3 +691,11 @@ 
// AARCH64-MSVC: #define __WINT_TYPE__ unsigned short

// AARCH64-MSVC: #define __WINT_WIDTH__ 16

// AARCH64-MSVC: #define __aarch64__ 1



// RUN: %clang_cc1 -triple=aarch64 -E -dM -mcmodel=small -xc /dev/null | FileCheck --check-prefix=CMODEL_SMALL %s

// RUN: %clang_cc1 -triple=aarch64 -E -dM -mcmodel=tiny -xc /dev/null | FileCheck --check-prefix=CMODEL_TINY %s

// RUN: %clang_cc1 -triple=aarch64 -E -dM -mcmodel=large -xc /dev/null | FileCheck --check-prefix=CMODEL_LARGE %s



// CMODEL_TINY: #define __AARCH64_CMODEL_TINY__ 1

// CMODEL_SMALL: #define __AARCH64_CMODEL_SMALL__ 1

// CMODEL_LARGE: #define __AARCH64_CMODEL_LARGE__ 1