Add a few Subzero intrinsics (not the atomic ones yet).

src/IceIntrinsics.cpp

Index: src/IceIntrinsics.cpp
diff --git a/src/IceIntrinsics.cpp b/src/IceIntrinsics.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0c6fd9dc2fa24ade9e93f20f4efd6627c35beb69
--- /dev/null
+++ b/src/IceIntrinsics.cpp
@@ -0,0 +1,202 @@
+//===- subzero/src/IceIntrinsics.cpp - Functions related to intrinsics ----===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Intrinsics utilities for matching and
+// then dispatching by name.
+//
+//===----------------------------------------------------------------------===//
+
+#include "IceCfg.h"
+#include "IceCfgNode.h"
+#include "IceIntrinsics.h"
+#include "IceLiveness.h"
+#include "IceOperand.h"
+
+#include <utility>
+
+namespace Ice {
+
+namespace {
+
+const struct IceIntrinsicsEntry_ {
+  Intrinsics::FullIntrinsicInfo Info;
+  const char *IntrinsicName;
+} IceIntrinsicsTable[] = {
+#define AtomicCmpxchgInit(Overload, NameSuffix)                                \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::AtomicCmpxchg, true },                                     \
+      { Overload, IceType_i32, Overload, Overload, IceType_i32, IceType_i32 }, \
+      6                                                                        \
+    }                                                                          \
+    , "nacl.atomic.cmpxchg." #NameSuffix                                       \

[Jim Stichnoth, 2014/06/16 23:05:16]

I don't think the # is necessary here, is it?  (here and below)

[jvoung (off chromium), 2014/06/17 17:36:19]

Done.

+  }
+    AtomicCmpxchgInit(IceType_i8, "i8"),
+    AtomicCmpxchgInit(IceType_i16, "i16"),
+    AtomicCmpxchgInit(IceType_i32, "i32"),
+    AtomicCmpxchgInit(IceType_i64, "i64"),
+#undef AtomicCmpxchgInit
+    { { { Intrinsics::AtomicFence, true }, { IceType_void, IceType_i32 }, 2 },
+      "nacl.atomic.fence" },
+    { { { Intrinsics::AtomicFenceAll, true }, { IceType_void }, 1 },
+      "nacl.atomic.fence.all" },
+    { { { Intrinsics::AtomicIsLockFree, true },
+        { IceType_i1, IceType_i32, IceType_i32 }, 3 },
+      "nacl.atomic.is.lock.free" },
+
+#define AtomicLoadInit(Overload, NameSuffix)                                   \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::AtomicLoad, true }                                         \
+      , { Overload, IceType_i32, IceType_i32 }, 3                              \
+    }                                                                          \
+    , "nacl.atomic.load." #NameSuffix                                          \
+  }
+    AtomicLoadInit(IceType_i8, "i8"),
+    AtomicLoadInit(IceType_i16, "i16"),
+    AtomicLoadInit(IceType_i32, "i32"),
+    AtomicLoadInit(IceType_i64, "i64"),
+#undef AtomicLoadInit
+
+#define AtomicRMWInit(Overload, NameSuffix)                                    \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::AtomicRMW, true }                                          \
+      , { Overload, IceType_i32, IceType_i32, Overload, IceType_i32 }, 5       \
+    }                                                                          \
+    , "nacl.atomic.rmw." #NameSuffix                                           \
+  }
+    AtomicRMWInit(IceType_i8, "i8"),
+    AtomicRMWInit(IceType_i16, "i16"),
+    AtomicRMWInit(IceType_i32, "i32"),
+    AtomicRMWInit(IceType_i64, "i64"),
+#undef AtomicRMWInit
+
+#define AtomicStoreInit(Overload, NameSuffix)                                  \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::AtomicStore, true }                                        \
+      , { IceType_void, Overload, IceType_i32, IceType_i32 }, 5                \
+    }                                                                          \
+    , "nacl.atomic.store." #NameSuffix                                         \
+  }
+    AtomicStoreInit(IceType_i8, "i8"),
+    AtomicStoreInit(IceType_i16, "i16"),
+    AtomicStoreInit(IceType_i32, "i32"),
+    AtomicStoreInit(IceType_i64, "i64"),
+#undef AtomicStoreInit
+
+#define BswapInit(Overload, NameSuffix)                                        \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::Bswap, false }                                             \
+      , { Overload, Overload }, 2                                              \
+    }                                                                          \
+    , "bswap." #NameSuffix                                                     \
+  }
+    BswapInit(IceType_i16, "i16"),
+    BswapInit(IceType_i32, "i32"),
+    BswapInit(IceType_i64, "i64"),
+#undef BswapInit
+
+#define CtlzInit(Overload, NameSuffix)                                         \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::Ctlz, false }                                              \
+      , { Overload, Overload, IceType_i1 }, 3                                  \
+    }                                                                          \
+    , "ctlz." #NameSuffix                                                      \
+  }
+    CtlzInit(IceType_i32, "i32"),
+    CtlzInit(IceType_i64, "i64"),
+#undef CtlzInit
+
+#define CtpopInit(Overload, NameSuffix)                                        \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::Ctpop, false }                                             \
+      , { Overload, Overload }, 2                                              \
+    }                                                                          \
+    , "ctpop." #NameSuffix                                                     \
+  }
+    CtpopInit(IceType_i32, "i32"),
+    CtpopInit(IceType_i64, "i64"),
+#undef CtpopInit
+
+#define CttzInit(Overload, NameSuffix)                                         \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::Cttz, false }                                              \
+      , { Overload, Overload, IceType_i1 }, 3                                  \
+    }                                                                          \
+    , "cttz." #NameSuffix                                                      \
+  }
+    CttzInit(IceType_i32, "i32"),
+    CttzInit(IceType_i64, "i64"),
+#undef CttzInit
+    { { { Intrinsics::Longjmp, true },
+        { IceType_void, IceType_i32, IceType_i32 }, 3 },
+      "nacl.longjmp" },
+    { { { Intrinsics::Memcpy, true }, { IceType_void, IceType_i32, IceType_i32,
+                                        IceType_i32,  IceType_i32, IceType_i1 },
+        6 },
+      "memcpy.p0i8.p0i8.i32" },
+    { { { Intrinsics::Memmove, true },
+        { IceType_void, IceType_i32, IceType_i32,
+          IceType_i32,  IceType_i32, IceType_i1 },
+        6 },
+      "memmove.p0i8.p0i8.i32" },
+    { { { Intrinsics::Memset, true }, { IceType_void, IceType_i32, IceType_i8,
+                                        IceType_i32,  IceType_i32, IceType_i1 },
+        6 },
+      "memset.p0i8.i32" },
+    { { { Intrinsics::NaClReadTP, false }, { IceType_i32 }, 1 },
+      "nacl.read.tp" },
+    { { { Intrinsics::Setjmp, true }, { IceType_i32, IceType_i32 }, 2 },
+      "nacl.setjmp" },
+
+#define SqrtInit(Overload, NameSuffix)                                         \
+  {                                                                            \
+    {                                                                          \
+      { Intrinsics::Sqrt, false }                                              \
+      , { Overload, Overload }, 2                                              \
+    }                                                                          \
+    , "sqrt." #NameSuffix                                                      \
+  }
+    SqrtInit(IceType_f32, "f32"),
+    SqrtInit(IceType_f64, "f64"),
+#undef SqrtInit
+    { { { Intrinsics::Stacksave, true }, { IceType_i32 }, 1 }, "stacksave" },
+    { { { Intrinsics::Stackrestore, true }, { IceType_void, IceType_i32 }, 2 },
+      "stackrestore" },
+    { { { Intrinsics::Trap, true }, { IceType_void }, 1 }, "trap" }
+  };
+const size_t IceIntrinsicsTableSize = llvm::array_lengthof(IceIntrinsicsTable);
+
+} // end of namespace
+
+Intrinsics::Intrinsics() {
+  for (size_t I = 0; I < IceIntrinsicsTableSize; ++I) {
+    const struct IceIntrinsicsEntry_ &Entry = IceIntrinsicsTable[I];
+    assert(Entry.Info.NumTypes <= kMaxIntrinsicParameters);
+    map.insert(std::make_pair(IceString(Entry.IntrinsicName), Entry.Info));
+  }
+}
+
+Intrinsics::~Intrinsics() {}
+
+const Intrinsics::FullIntrinsicInfo *
+Intrinsics::find(const IceString &Name) const {
+  IntrinsicMap::const_iterator it = map.find(Name);
+  if (it == map.end())
+    return NULL;
+  return &it->second;
+}
+
+} // end of namespace Ice