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Add tag-fixnum instruction

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* libguile/vm-engine.c (tag-fixnum): New instruction.
* module/language/cps/compile-bytecode.scm (compile-function):
* module/language/cps/cse.scm (compute-equivalent-subexpressions):
* module/language/cps/effects-analysis.scm:
* module/language/cps/types.scm (&min/fixnum, &max/fixnum, tag-fixnum):
* module/system/vm/assembler.scm: Add support for the new instruction.
This commit is contained in:
Andy Wingo 2017-11-09 14:18:01 +01:00
parent 7bfdd46ea5
commit 8b5f9648ff
6 changed files with 27 additions and 2 deletions
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12
libguile/vm-engine.c
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@ -4057,7 +4057,17 @@ VM_NAME (scm_i_thread *thread, struct scm_vm *vp,
NEXT (1);
}
VM_DEFINE_OP (215, unused_215, NULL, NOP)
VM_DEFINE_OP (215, tag_fixnum, "tag-fixnum", OP1 (X8_S12_S12) | OP_DST)
{
scm_t_uint16 dst, src;
UNPACK_12_12 (op, dst, src);
SP_SET (dst, SCM_I_MAKINUM (SP_REF_S64 (src)));
NEXT (1);
}
VM_DEFINE_OP (216, unused_216, NULL, NOP)
VM_DEFINE_OP (217, unused_217, NULL, NOP)
VM_DEFINE_OP (218, unused_218, NULL, NOP)