diff options
Diffstat (limited to 'gcc/config/spu/constraints.md')
| -rw-r--r-- | gcc/config/spu/constraints.md | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/gcc/config/spu/constraints.md b/gcc/config/spu/constraints.md index fe81b2f66a8..b1f5947064c 100644 --- a/gcc/config/spu/constraints.md +++ b/gcc/config/spu/constraints.md @@ -16,8 +16,14 @@ ;; <http://www.gnu.org/licenses/>. -;; GCC standard constraints: g, i, m, n, o, p, r, s, E-H, I-P, V, X -;; unused for SPU: E-H, L, Q, d, e, h, q, t-z +;; ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz +;; GCC: ffffiiiiiiii x x x x xxxx xx +;; SPU: xxxx xxx xxxx xxxx x xxx xx x xxx xx +;; FREE: ffff i a a a a a aa aaa +;; x - used +;; a - available +;; i - available for integer immediates +;; f - available for floating point immediates ;; For most immediate constraints we have 3 variations to deal with the ;; fact const_int has no mode. One variation treats const_int as 32 bit, @@ -159,4 +165,15 @@ && INTVAL (XEXP (op, 0)) >= 0 && INTVAL (XEXP (op, 0)) <= 0x3ffff"))) + +;; Floating-point constant constraints. + +(define_constraint "v" + "Floating point power of 2 with exponent in [0..127]" + (and (match_code "const_double,const_vector") + (match_test "exp2_immediate_p (op, VOIDmode, 0, 127)"))) +(define_constraint "w" + "Floating point power of 2 with exponent in [-126..0]" + (and (match_code "const_double,const_vector") + (match_test "exp2_immediate_p (op, VOIDmode, -126, 0)"))) |