gcc/doc/gccint/gimple/tuple-specific-accessors/gimpleasm.rst

   1 ..
   2   Copyright 1988-2022 Free Software Foundation, Inc.
   3   This is part of the GCC manual.
   4   For copying conditions, see the copyright.rst file.
   5
   6 .. index:: GIMPLE_ASM
   7
   8 GIMPLE_ASM
   9 ^^^^^^^^^^
  10
  11 .. function:: gasm *gimple_build_asm_vec ( const char *string, vec<tree, va_gc> *inputs, vec<tree, va_gc> *outputs, vec<tree, va_gc> *clobbers, vec<tree, va_gc> *labels)
  12
  13   Build a ``GIMPLE_ASM`` statement.  This statement is used for
  14   building in-line assembly constructs.  ``STRING`` is the assembly
  15   code.  ``INPUTS``, ``OUTPUTS``, ``CLOBBERS``  and ``LABELS``
  16   are the inputs, outputs, clobbered registers and labels.
  17
  18 .. function:: unsigned gimple_asm_ninputs (const gasm *g)
  19
  20   Return the number of input operands for ``GIMPLE_ASM`` ``G``.
  21
  22 .. function:: unsigned gimple_asm_noutputs (const gasm *g)
  23
  24   Return the number of output operands for ``GIMPLE_ASM`` ``G``.
  25
  26 .. function:: unsigned gimple_asm_nclobbers (const gasm *g)
  27
  28   Return the number of clobber operands for ``GIMPLE_ASM`` ``G``.
  29
  30 .. function:: tree gimple_asm_input_op (const gasm *g, unsigned index)
  31
  32   Return input operand ``INDEX`` of ``GIMPLE_ASM`` ``G``.
  33
  34 .. function:: void gimple_asm_set_input_op (gasm *g, unsigned index, tree in_op)
  35
  36   Set ``IN_OP`` to be input operand ``INDEX`` in ``GIMPLE_ASM`` ``G``.
  37
  38 .. function:: tree gimple_asm_output_op (const gasm *g, unsigned index)
  39
  40   Return output operand ``INDEX`` of ``GIMPLE_ASM`` ``G``.
  41
  42 .. function:: void gimple_asm_set_output_op (gasm *g, unsigned index, tree out_op)
  43
  44   Set ``OUT_OP`` to be output operand ``INDEX`` in ``GIMPLE_ASM`` ``G``.
  45
  46 .. function:: tree gimple_asm_clobber_op (const gasm *g, unsigned index)
  47
  48   Return clobber operand ``INDEX`` of ``GIMPLE_ASM`` ``G``.
  49
  50 .. function:: void gimple_asm_set_clobber_op (gasm *g, unsigned index, tree clobber_op)
  51
  52   Set ``CLOBBER_OP`` to be clobber operand ``INDEX`` in ``GIMPLE_ASM`` ``G``.
  53
  54 .. function:: const char * gimple_asm_string (const gasm *g)
  55
  56   Return the string representing the assembly instruction in
  57   ``GIMPLE_ASM`` ``G``.
  58
  59 .. function:: bool gimple_asm_volatile_p (const gasm *g)
  60
  61   Return true if ``G`` is an asm statement marked volatile.
  62
  63 .. function:: void gimple_asm_set_volatile (gasm *g, bool volatile_p)
  64
  65   Mark asm statement ``G`` as volatile or non-volatile based on
  66   ``VOLATILE_P``.