1 files changed, 99 insertions, 0 deletions
diff --git a/llvm/lib/Target/VE/VESubtarget.cpp b/llvm/lib/Target/VE/VESubtarget.cpp
new file mode 100644
index 000000000000..861e88cdb583
--- /dev/null
+++ b/llvm/lib/Target/VE/VESubtarget.cpp
@@ -0,0 +1,99 @@
+//===-- VESubtarget.cpp - VE Subtarget Information ------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the VE specific subclass of TargetSubtargetInfo.
+//
+//===----------------------------------------------------------------------===//
+
+#include "VESubtarget.h"
+#include "VE.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/TargetRegistry.h"
+
+using namespace llvm;
+
+#define DEBUG_TYPE "ve-subtarget"
+
+#define GET_SUBTARGETINFO_TARGET_DESC
+#define GET_SUBTARGETINFO_CTOR
+#include "VEGenSubtargetInfo.inc"
+
+void VESubtarget::anchor() {}
+
+VESubtarget &VESubtarget::initializeSubtargetDependencies(StringRef CPU,
+                                                          StringRef FS) {
+  // Determine default and user specified characteristics
+  std::string CPUName = CPU;
+  if (CPUName.empty())
+    CPUName = "ve";
+
+  // Parse features string.
+  ParseSubtargetFeatures(CPUName, FS);
+
+  return *this;
+}
+
+VESubtarget::VESubtarget(const Triple &TT, const std::string &CPU,
+                         const std::string &FS, const TargetMachine &TM)
+    : VEGenSubtargetInfo(TT, CPU, FS), TargetTriple(TT),
+      InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this),
+      FrameLowering(*this) {}
+
+int VESubtarget::getAdjustedFrameSize(int frameSize) const {
+
+  // VE stack frame:
+  //
+  //         +----------------------------------------+
+  //         | Locals and temporaries                 |
+  //         +----------------------------------------+
+  //         | Parameter area for callee              |
+  // 176(fp) |                                        |
+  //         +----------------------------------------+
+  //         | Register save area (RSA) for callee    |
+  //         |                                        |
+  //  16(fp) |                         20 * 8 bytes   |
+  //         +----------------------------------------+
+  //   8(fp) | Return address                         |
+  //         +----------------------------------------+
+  //   0(fp) | Frame pointer of caller                |
+  // --------+----------------------------------------+--------
+  //         | Locals and temporaries for callee      |
+  //         +----------------------------------------+
+  //         | Parameter area for callee of callee    |
+  //         +----------------------------------------+
+  //  16(sp) | RSA for callee of callee               |
+  //         +----------------------------------------+
+  //   8(sp) | Return address                         |
+  //         +----------------------------------------+
+  //   0(sp) | Frame pointer of callee                |
+  //         +----------------------------------------+
+
+  // RSA frame:
+  //         +----------------------------------------------+
+  // 168(fp) | %s33                                         |
+  //         +----------------------------------------------+
+  //         | %s19...%s32                                  |
+  //         +----------------------------------------------+
+  //  48(fp) | %s18                                         |
+  //         +----------------------------------------------+
+  //  40(fp) | Linkage area register (%s17)                 |
+  //         +----------------------------------------------+
+  //  32(fp) | Procedure linkage table register (%plt=%s16) |
+  //         +----------------------------------------------+
+  //  24(fp) | Global offset table register (%got=%s15)     |
+  //         +----------------------------------------------+
+  //  16(fp) | Thread pointer register (%tp=%s14)           |
+  //         +----------------------------------------------+
+
+  frameSize += 176;                   // for RSA, RA, and FP
+  frameSize = alignTo(frameSize, 16); // requires 16 bytes alignment
+
+  return frameSize;
+}
+
+bool VESubtarget::enableMachineScheduler() const { return true; }