diff options
author | Andy Wingo <wingo@pobox.com> | 2015-11-19 22:12:04 +0100 |
---|---|---|
committer | Andy Wingo <wingo@pobox.com> | 2015-12-01 11:30:54 +0100 |
commit | 8464cc576c0fb9cf70a51450795338996cc785ce (patch) | |
tree | 34e6f783a54ba0a7c1e37e552f3461a1e1a0b535 /libguile/vm-engine.c | |
parent | 870ac91a4e6a8f75a6d0e246f034c9b4dcc70317 (diff) | |
download | guile-8464cc576c0fb9cf70a51450795338996cc785ce.tar.gz |
Add bv-length instruction
* libguile/vm-engine.c (bv-length): New instruction.
* module/language/cps/compile-bytecode.scm (compile-function):
* module/language/cps/effects-analysis.scm (bv-length):
* module/language/cps/primitives.scm (*instruction-aliases*):
* module/language/cps/slot-allocation.scm (compute-var-representations):
* module/language/cps/types.scm (bv-length):
* module/language/tree-il/compile-cps.scm (convert): Add support for
bv-length.
* module/system/vm/assembler.scm: Export emit-bv-length.
Diffstat (limited to 'libguile/vm-engine.c')
-rw-r--r-- | libguile/vm-engine.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/libguile/vm-engine.c b/libguile/vm-engine.c index 44bd2569b..3e068a18a 100644 --- a/libguile/vm-engine.c +++ b/libguile/vm-engine.c @@ -3341,7 +3341,19 @@ VM_NAME (scm_i_thread *thread, struct scm_vm *vp, NEXT (1); } - VM_DEFINE_OP (145, unused_145, NULL, NOP) + /* bv-length dst:12 src:12 + * + * Store the length of the bytevector in SRC in DST, as an untagged + * 64-bit integer. + */ + VM_DEFINE_OP (145, bv_length, "bv-length", OP1 (X8_S12_S12) | OP_DST) + { + ARGS1 (bv); + VM_VALIDATE_BYTEVECTOR (bv, "bytevector-length"); + SP_SET_U64 (dst, SCM_BYTEVECTOR_LENGTH (bv)); + NEXT (1); + } + VM_DEFINE_OP (146, unused_146, NULL, NOP) VM_DEFINE_OP (147, unused_147, NULL, NOP) VM_DEFINE_OP (148, unused_148, NULL, NOP) |