diff options
Diffstat (limited to 'gcc/config/arm/iterators.md')
| -rw-r--r-- | gcc/config/arm/iterators.md | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/config/arm/iterators.md b/gcc/config/arm/iterators.md index aebab934049..6fe6eef2736 100644 --- a/gcc/config/arm/iterators.md +++ b/gcc/config/arm/iterators.md @@ -116,6 +116,9 @@ ;; Vector modes including 64-bit integer elements, but no floats. (define_mode_iterator VDQIX [V8QI V16QI V4HI V8HI V2SI V4SI DI V2DI]) +;; Vector modes for H, S and D types. +(define_mode_iterator VDQHSD [V4HI V8HI V2SI V4SI V2DI]) + ;; Vector modes for float->int conversions. (define_mode_iterator VCVTF [V2SF V4SF]) @@ -191,6 +194,20 @@ ;; Right shifts (define_code_iterator rshifts [ashiftrt lshiftrt]) +;; Binary operators whose second operand can be shifted. +(define_code_iterator shiftable_ops [plus minus ior xor and]) + +;; plus and minus are the only shiftable_ops for which Thumb2 allows +;; a stack pointer opoerand. The minus operation is a candidate for an rsub +;; and hence only plus is supported. +(define_code_attr t2_binop0 + [(plus "rk") (minus "r") (ior "r") (xor "r") (and "r")]) + +;; The instruction to use when a shiftable_ops has a shift operation as +;; its first operand. +(define_code_attr arith_shift_insn + [(plus "add") (minus "rsb") (ior "orr") (xor "eor") (and "and")]) + ;;---------------------------------------------------------------------------- ;; Int iterators ;;---------------------------------------------------------------------------- |