Add abi::Trait specializations for arm ABIs

2026-06-21 14:07:57 +00:00 · 2022-02-11 17:39:22 +02:00
parent 4069d547b6
commit c9daab2ce4
3 changed files with 141 additions and 0 deletions
@@ -0,0 +1,72 @@
+#pragma once
+
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+//
+
+#include "revng/Model/ABI.h"
+#include "revng/Model/Register.h"
+
+namespace abi {
+
+template<model::ABI::Values ABI>
+struct Trait;
+
+template<>
+struct Trait<model::ABI::AAPCS64> {
+  static constexpr auto ABI = model::ABI::AAPCS64;
+
+  static constexpr bool ArgumentsArePositionBased = false;
+  static constexpr bool OnlyStartDoubleArgumentsFromAnEvenRegister = true;
+  static constexpr bool ArgumentsCanBeSplitBetweenRegistersAndStack = true;
+  static constexpr bool UsePointerToCopyForStackArguments = false;
+
+  static constexpr size_t MaximumGPRsPerAggregateArgument = 2;
+  static constexpr size_t MaximumGPRsPerAggregateReturnValue = 2;
+  static constexpr size_t MaximumGPRsPerScalarArgument = 2;
+  static constexpr size_t MaximumGPRsPerScalarReturnValue = 2;
+
+  static constexpr std::array GeneralPurposeArgumentRegisters = {
+    model::Register::x0_aarch64, model::Register::x1_aarch64,
+    model::Register::x2_aarch64, model::Register::x3_aarch64,
+    model::Register::x4_aarch64, model::Register::x5_aarch64,
+    model::Register::x6_aarch64, model::Register::x7_aarch64
+  };
+  static constexpr std::array GeneralPurposeReturnValueRegisters = {
+    model::Register::x0_aarch64, model::Register::x1_aarch64,
+    model::Register::x2_aarch64, model::Register::x3_aarch64,
+    model::Register::x4_aarch64, model::Register::x5_aarch64,
+    model::Register::x6_aarch64, model::Register::x7_aarch64
+  };
+
+  static constexpr std::array VectorArgumentRegisters = {
+    model::Register::v0_aarch64, model::Register::v1_aarch64,
+    model::Register::v2_aarch64, model::Register::v3_aarch64,
+    model::Register::v4_aarch64, model::Register::v5_aarch64,
+    model::Register::v6_aarch64, model::Register::v7_aarch64
+  };
+  static constexpr std::array VectorReturnValueRegisters = {
+    model::Register::v0_aarch64, model::Register::v1_aarch64,
+    model::Register::v2_aarch64, model::Register::v3_aarch64,
+    model::Register::v4_aarch64, model::Register::v5_aarch64,
+    model::Register::v6_aarch64, model::Register::v7_aarch64
+  };
+
+  static constexpr std::array CalleeSavedRegisters = {
+    model::Register::x19_aarch64, model::Register::x20_aarch64,
+    model::Register::x21_aarch64, model::Register::x22_aarch64,
+    model::Register::x23_aarch64, model::Register::x24_aarch64,
+    model::Register::x25_aarch64, model::Register::x26_aarch64,
+    model::Register::x27_aarch64, model::Register::x28_aarch64,
+    model::Register::x29_aarch64, model::Register::sp_aarch64,
+    model::Register::v8_aarch64,  model::Register::v9_aarch64,
+    model::Register::v10_aarch64, model::Register::v11_aarch64,
+    model::Register::v12_aarch64, model::Register::v13_aarch64,
+    model::Register::v14_aarch64, model::Register::v15_aarch64
+  };
+
+  static constexpr auto
+    ReturnValueLocationRegister = model::Register::x8_aarch64;
+};
+
+} // namespace abi
@@ -0,0 +1,67 @@
+#pragma once
+
+//
+// This file is distributed under the MIT License. See LICENSE.md for details.
+//
+
+#include "revng/Model/ABI.h"
+#include "revng/Model/Register.h"
+
+namespace abi {
+
+template<model::ABI::Values ABI>
+struct Trait;
+
+template<>
+struct Trait<model::ABI::AAPCS> {
+  static constexpr auto ABI = model::ABI::AAPCS;
+
+  static constexpr bool ArgumentsArePositionBased = false;
+  static constexpr bool OnlyStartDoubleArgumentsFromAnEvenRegister = true;
+  static constexpr bool ArgumentsCanBeSplitBetweenRegistersAndStack = true;
+  static constexpr bool UsePointerToCopyForStackArguments = false;
+
+  static constexpr size_t MaximumGPRsPerAggregateArgument = 4;
+  static constexpr size_t MaximumGPRsPerAggregateReturnValue = 1;
+  static constexpr size_t MaximumGPRsPerScalarArgument = 4;
+  static constexpr size_t MaximumGPRsPerScalarReturnValue = 4;
+
+  static constexpr std::array GeneralPurposeArgumentRegisters = {
+    model::Register::r0_arm,
+    model::Register::r1_arm,
+    model::Register::r2_arm,
+    model::Register::r3_arm
+  };
+  static constexpr std::array GeneralPurposeReturnValueRegisters = {
+    model::Register::r0_arm,
+    model::Register::r1_arm,
+    model::Register::r2_arm,
+    model::Register::r3_arm
+  };
+
+  static constexpr std::array VectorArgumentRegisters = {
+    model::Register::q0_arm,
+    model::Register::q1_arm,
+    model::Register::q2_arm,
+    model::Register::q3_arm
+  };
+  static constexpr std::array VectorReturnValueRegisters = {
+    model::Register::q0_arm,
+    model::Register::q1_arm,
+    model::Register::q2_arm,
+    model::Register::q3_arm
+  };
+
+  static constexpr std::array CalleeSavedRegisters = {
+    model::Register::r4_arm,  model::Register::r5_arm,
+    model::Register::r6_arm,  model::Register::r7_arm,
+    model::Register::r8_arm,  model::Register::r10_arm,
+    model::Register::r11_arm, model::Register::r13_arm,
+    model::Register::q4_arm,  model::Register::q5_arm,
+    model::Register::q6_arm,  model::Register::q7_arm
+  };
+
+  static constexpr auto ReturnValueLocationRegister = model::Register::r0_arm;
+};
+
+} // namespace abi
@@ -8,6 +8,8 @@

 #include "llvm/ADT/ArrayRef.h"

+#include "revng/ABI/AArch64/AAPCS64.h"
+#include "revng/ABI/ARM/AAPCS.h"
 #include "revng/ABI/x86/Microsoft_x86_cdecl.h"
 #include "revng/ABI/x86/Microsoft_x86_clrcall.h"
 #include "revng/ABI/x86/Microsoft_x86_fastcall.h"