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Vectorisation of algebraic case expressions
[ghc-hetmet.git]
/
includes
/
Stg.h
diff --git
a/includes/Stg.h
b/includes/Stg.h
index
a63b7ec
..
1facd5f
100644
(file)
--- a/
includes/Stg.h
+++ b/
includes/Stg.h
@@
-66,7
+66,9
@@
#define BITS_IN(x) (BITS_PER_BYTE * sizeof(x))
/*
#define BITS_IN(x) (BITS_PER_BYTE * sizeof(x))
/*
- * 'Portable' inlining
+ * 'Portable' inlining:
+ * INLINE_HEADER is for inline functions in header files
+ * STATIC_INLINE is for inline functions in source files
*/
#if defined(__GNUC__) || defined( __INTEL_COMPILER)
# define INLINE_HEADER static inline
*/
#if defined(__GNUC__) || defined( __INTEL_COMPILER)
# define INLINE_HEADER static inline
@@
-127,8
+129,8
@@
typedef StgWord64 LW_;
#define EF_(f) extern F_ f(void)
typedef StgWord StgWordArray[];
#define EF_(f) extern F_ f(void)
typedef StgWord StgWordArray[];
-#define EI_ extern StgWordArray
-#define II_ static StgWordArray
+#define EI_(X) extern StgWordArray (X) GNU_ATTRIBUTE(aligned (8))
+#define II_(X) static StgWordArray (X) GNU_ATTRIBUTE(aligned (8))
/* -----------------------------------------------------------------------------
Tail calls
/* -----------------------------------------------------------------------------
Tail calls
@@
-442,7
+444,9
@@
typedef union {
/* Approximate version when we don't have long arithmetic (on 64-bit archs) */
/* Approximate version when we don't have long arithmetic (on 64-bit archs) */
-#define HALF_POS_INT (((I_)1) << (BITS_IN (I_) / 2))
+/* If we have n-bit words then we have n-1 bits after accounting for the
+ * sign bit, so we can fit the result of multiplying 2 (n-1)/2-bit numbers */
+#define HALF_POS_INT (((I_)1) << ((BITS_IN (I_) - 1) / 2))
#define HALF_NEG_INT (-HALF_POS_INT)
#define mulIntMayOflo(a,b) \
#define HALF_NEG_INT (-HALF_POS_INT)
#define mulIntMayOflo(a,b) \