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Add some ISA predicates for Intel CPUID features.

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Guard the popcnt instruction on the proper CPUID bits.
This commit is contained in:
Jakob Stoklund Olesen
2017-07-12 16:05:20 -07:00
parent b6f2f0d862
commit d8e2cb2b42
5 changed files with 41 additions and 9 deletions
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10
lib/cretonne/meta/isa/intel/encodings.py
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@@ -7,6 +7,7 @@ from base import instructions as base
from base.formats import UnaryImm
from .defs import I32, I64
from . import recipes as r
from . import settings as cfg
for inst, opc in [
(base.iadd, 0x01),
@@ -81,10 +82,11 @@ for inst, rrr in [
I64.enc(inst.i32.i32, *r.rc(0xd3, rrr=rrr))
# Population count.
I32.enc(base.popcnt.i32, *r.urm(0xf3, 0x0f, 0xb8))
I64.enc(base.popcnt.i64, *r.urm.rex(0xf3, 0x0f, 0xb8, w=1))
I64.enc(base.popcnt.i32, *r.urm.rex(0xf3, 0x0f, 0xb8))
I64.enc(base.popcnt.i32, *r.urm(0xf3, 0x0f, 0xb8))
I32.enc(base.popcnt.i32, *r.urm(0xf3, 0x0f, 0xb8), isap=cfg.use_popcnt)
I64.enc(base.popcnt.i64, *r.urm.rex(0xf3, 0x0f, 0xb8, w=1),
isap=cfg.use_popcnt)
I64.enc(base.popcnt.i32, *r.urm.rex(0xf3, 0x0f, 0xb8), isap=cfg.use_popcnt)
I64.enc(base.popcnt.i32, *r.urm(0xf3, 0x0f, 0xb8), isap=cfg.use_popcnt)
# Loads and stores.
I32.enc(base.store.i32.i32, *r.st(0x89))