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Add support for optimized unboxed abs and sqrt

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Some components of this have been wired up for a while; this commit
finishes the compiler, runtime, and JIT support.

* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS):
* libguile/intrinsics.c (scm_bootstrap_intrinsics): Declare the new
  intrinsics.
* libguile/jit.c (compile_call_f64_from_f64): Define code generators for
  the new intrinsics.
* libguile/vm-engine.c (call-f64<-f64): New instruction.
* module/language/cps/effects-analysis.scm:
* module/language/cps/reify-primitives.scm (compute-known-primitives):
* module/language/cps/slot-allocation.scm (compute-var-representations):
* module/language/cps/specialize-numbers.scm (specialize-operations):
* module/language/tree-il/cps-primitives.scm (abs):
* module/system/vm/assembler.scm (system, define-f64<-f64-intrinsic):
  (sqrt, abs, fsqrt, fabs):
* module/language/cps/types.scm (fsqrt, fabs): Add new f64<-f64
  primitives.
This commit is contained in:
Andy Wingo 2019-08-04 21:45:25 +02:00
parent ef1869b723
commit 382cc5c246
11 changed files with 101 additions and 5 deletions
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20
libguile/vm-engine.c
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@ -3242,7 +3242,25 @@ VM_NAME (scm_thread *thread)
NEXT (1);
}
VM_DEFINE_OP (155, unused_155, NULL, NOP)
/* call-f64<-f64 dst:12 src:12 IDX:32
*
* Call the double-returning instrinsic with index IDX, passing SCM
* local SRC as argument. Place the double result in DST.
*/
VM_DEFINE_OP (155, call_f64_from_f64, "call-f64<-f64", DOP2 (X8_S12_S12, C32))
{
uint16_t dst, src;
scm_t_f64_from_f64_intrinsic intrinsic;
UNPACK_12_12 (op, dst, src);
intrinsic = intrinsics[ip[1]];
/* We assume these instructions can't throw an exception. */
SP_SET_F64 (dst, intrinsic (SP_REF_F64 (src)));
NEXT (2);
}
VM_DEFINE_OP (156, unused_156, NULL, NOP)
VM_DEFINE_OP (157, unused_157, NULL, NOP)
VM_DEFINE_OP (158, unused_158, NULL, NOP)