[Fixed Point Arithmetic] Addition of the remaining fixed point types and their saturated equivalents

This diff includes changes for the remaining _Fract and _Sat fixed point types.

```
signed short _Fract s_short_fract;
signed _Fract s_fract;
signed long _Fract s_long_fract;
unsigned short _Fract u_short_fract;
unsigned _Fract u_fract;
unsigned long _Fract u_long_fract;

// Aliased fixed point types
short _Accum short_accum;
_Accum accum;
long _Accum long_accum;
short _Fract short_fract;
_Fract fract;
long _Fract long_fract;

// Saturated fixed point types
_Sat signed short _Accum sat_s_short_accum;
_Sat signed _Accum sat_s_accum;
_Sat signed long _Accum sat_s_long_accum;
_Sat unsigned short _Accum sat_u_short_accum;
_Sat unsigned _Accum sat_u_accum;
_Sat unsigned long _Accum sat_u_long_accum;
_Sat signed short _Fract sat_s_short_fract;
_Sat signed _Fract sat_s_fract;
_Sat signed long _Fract sat_s_long_fract;
_Sat unsigned short _Fract sat_u_short_fract;
_Sat unsigned _Fract sat_u_fract;
_Sat unsigned long _Fract sat_u_long_fract;

// Aliased saturated fixed point types
_Sat short _Accum sat_short_accum;
_Sat _Accum sat_accum;
_Sat long _Accum sat_long_accum;
_Sat short _Fract sat_short_fract;
_Sat _Fract sat_fract;
_Sat long _Fract sat_long_fract;
```

This diff only allows for declaration of these fixed point types. Assignment and other operations done on fixed point types according to http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1169.pdf will be added in future patches.

Differential Revision: https://reviews.llvm.org/D46911

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@334718 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 0 deletions

diff --git a/include/clang/Basic/TargetInfo.h b/include/clang/Basic/TargetInfo.h
index c5a187e6f8..24eb67af41 100644
--- a/include/clang/Basic/TargetInfo.h
+++ b/include/clang/Basic/TargetInfo.h
@@ -77,6 +77,9 @@ protected:
   unsigned char ShortAccumWidth, ShortAccumAlign;
   unsigned char AccumWidth, AccumAlign;
   unsigned char LongAccumWidth, LongAccumAlign;
+  unsigned char ShortFractWidth, ShortFractAlign;
+  unsigned char FractWidth, FractAlign;
+  unsigned char LongFractWidth, LongFractAlign;
   unsigned char SuitableAlign;
   unsigned char DefaultAlignForAttributeAligned;
   unsigned char MinGlobalAlign;
@@ -376,6 +379,21 @@ public:
   unsigned getLongAccumWidth() const { return LongAccumWidth; }
   unsigned getLongAccumAlign() const { return LongAccumAlign; }
 
+  /// getShortFractWidth/Align - Return the size of 'signed short _Fract' and
+  /// 'unsigned short _Fract' for this target, in bits.
+  unsigned getShortFractWidth() const { return ShortFractWidth; }
+  unsigned getShortFractAlign() const { return ShortFractAlign; }
+
+  /// getFractWidth/Align - Return the size of 'signed _Fract' and
+  /// 'unsigned _Fract' for this target, in bits.
+  unsigned getFractWidth() const { return FractWidth; }
+  unsigned getFractAlign() const { return FractAlign; }
+
+  /// getLongFractWidth/Align - Return the size of 'signed long _Fract' and
+  /// 'unsigned long _Fract' for this target, in bits.
+  unsigned getLongFractWidth() const { return LongFractWidth; }
+  unsigned getLongFractAlign() const { return LongFractAlign; }
+
   /// Determine whether the __int128 type is supported on this target.
   virtual bool hasInt128Type() const {
     return (getPointerWidth(0) >= 64) || getTargetOpts().ForceEnableInt128;