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authorAndy Wingo <wingo@pobox.com>2017-11-09 14:18:01 +0100
committerAndy Wingo <wingo@pobox.com>2017-11-11 22:08:14 +0100
commit8b5f9648ff806157f90489b1f5eb26fb1e05a8cf (patch)
tree0b4ab63153dc0e1663d4309af32dc4b73a3bab96 /libguile
parent7bfdd46ea5d915fd878be47d08fb1e781d20d163 (diff)
downloadguile-8b5f9648ff806157f90489b1f5eb26fb1e05a8cf.tar.gz
Add tag-fixnum instruction
* 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.
Diffstat (limited to 'libguile')
-rw-r--r--libguile/vm-engine.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/libguile/vm-engine.c b/libguile/vm-engine.c
index 4c4d9eb7b..c2b0156b6 100644
--- a/libguile/vm-engine.c
+++ b/libguile/vm-engine.c
@@ -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)