Author: Armin Rigo <ar...@tunes.org>
Branch: ppc-updated-backend
Changeset: r79093:d289f166a3dc
Date: 2015-08-20 08:35 -0700
http://bitbucket.org/pypy/pypy/changeset/d289f166a3dc/
Log: start by copying some more logic from x86, and some comments that
are more recent than the ppc backend
diff --git a/rpython/jit/backend/ppc/arch.py b/rpython/jit/backend/ppc/arch.py
--- a/rpython/jit/backend/ppc/arch.py
+++ b/rpython/jit/backend/ppc/arch.py
@@ -1,50 +1,75 @@
# Constants that depend on whether we are on 32-bit or 64-bit
-from rpython.jit.backend.ppc.register import (NONVOLATILES,
- NONVOLATILES_FLOAT,
- MANAGED_REGS,
- MANAGED_FP_REGS)
+from rpython.jit.backend.ppc import register as r
import sys
if sys.maxint == (2**31 - 1):
+ assert False, "the ppc backend only supports PPC-64 for now"
WORD = 4
- DWORD = 2 * WORD
+ #DWORD = 2 * WORD
IS_PPC_32 = True
- BACKCHAIN_SIZE = 2
- FPR_SAVE_AREA = len(NONVOLATILES_FLOAT) * DWORD
+ #BACKCHAIN_SIZE = 2
+ #FPR_SAVE_AREA = len(NONVOLATILES_FLOAT) * DWORD
else:
WORD = 8
- DWORD = 2 * WORD
+ #DWORD = 2 * WORD
IS_PPC_32 = False
- BACKCHAIN_SIZE = 6
- FPR_SAVE_AREA = len(NONVOLATILES_FLOAT) * WORD
+ #BACKCHAIN_SIZE = 6
+ #FPR_SAVE_AREA = len(NONVOLATILES_FLOAT) * WORD
IS_PPC_64 = not IS_PPC_32
MY_COPY_OF_REGS = 0
-FORCE_INDEX = WORD
-GPR_SAVE_AREA = len(NONVOLATILES) * WORD
-FLOAT_INT_CONVERSION = WORD
+#FORCE_INDEX = WORD
+#GPR_SAVE_AREA = len(NONVOLATILES) * WORD
+#FLOAT_INT_CONVERSION = WORD
MAX_REG_PARAMS = 8
MAX_FREG_PARAMS = 13
# we need at most 5 instructions to load a constant
# and one instruction to patch the stack pointer
-SIZE_LOAD_IMM_PATCH_SP = 6
+#SIZE_LOAD_IMM_PATCH_SP = 6
-FORCE_INDEX_OFS = (len(MANAGED_REGS) + len(MANAGED_FP_REGS)) * WORD
+#FORCE_INDEX_OFS = (len(MANAGED_REGS) + len(MANAGED_FP_REGS)) * WORD
-# The JITFRAME_FIXED_SIZE is measured in words, not bytes or bits.
-# Follwing the PPC ABI, we are saving:
-# - volatile fpr's
-# - volatile gpr's
-# - vrsave word
-# - alignment padding
-# - vector register save area (quadword aligned)
-# 3 + 27 + 1 + 4 + 1
-JITFRAME_FIXED_SIZE = len(MANAGED_FP_REGS) + len(MANAGED_REGS) + 1 + 4 + 1
+
+#
+# +--------------------+ <- SP + STD_FRAME_SIZE
+# | general registers |
+# | save area |
+# +--------------------+ <- SP + 120
+# | Local vars (*) |
+# +--------------------+ <- SP + 112
+# | Parameter save |
+# | area (8 args max) |
+# +--------------------+ <- SP + 48
+# | TOC (unused) |
+# +--------------------+ <- SP + 40
+# | link ed. (unused) |
+# +--------------------+ <- SP + 32
+# | compiler (unused) |
+# +--------------------+ <- SP + 24
+# | LR save area |
+# +--------------------+ <- SP + 16
+# | CR save (unused) |
+# +--------------------+ <- SP + 8
+# | SP back chain |
+# +--------------------+ <- SP
+
+# The local variables area contains only a copy of the 2nd argument
+# passed to the machine code function, which is the ll_threadlocal_addr.
+# The 1st argument, i.e. the GC-managed jitframe, is stored in the
+# register r31.
+
+
+REGISTERS_SAVED = [r.r25, r.r26, r.r27, r.r28, r.r29, r.r30, r.r31]
+assert REGISTERS_SAVED == [_r for _r in r.NONVOLATILES
+ if _r in r.MANAGED_REGS or _r == r.r31]
+
+STD_FRAME_SIZE_IN_BYTES = 120 + len(REGISTERS_SAVED) * WORD
+assert STD_FRAME_SIZE_IN_BYTES % 16 == 0
# offset to LR in BACKCHAIN
if IS_PPC_32:
LR_BC_OFFSET = WORD
else:
- LR_BC_OFFSET = 2 * WORD
+ LR_BC_OFFSET = 16
diff --git a/rpython/jit/backend/ppc/assembler.py
b/rpython/jit/backend/ppc/assembler.py
--- a/rpython/jit/backend/ppc/assembler.py
+++ b/rpython/jit/backend/ppc/assembler.py
@@ -1,6 +1,6 @@
import os
from rpython.jit.backend.ppc import form
-from rpython.jit.backend.ppc import asmfunc
+#from rpython.jit.backend.ppc import asmfunc
# don't be fooled by the fact that there's some separation between a
# generic assembler class and a PPC assembler class... there's
diff --git a/rpython/jit/backend/ppc/codebuf.py
b/rpython/jit/backend/ppc/codebuf.py
deleted file mode 100644
--- a/rpython/jit/backend/ppc/codebuf.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from rpython.jit.backend.llsupport.asmmemmgr import BlockBuilderMixin
-
-class MachineCodeBlockWrapper(BlockBuilderMixin):
- def __init__(self):
- self.init_block_builder()
diff --git a/rpython/jit/backend/ppc/codebuilder.py
b/rpython/jit/backend/ppc/codebuilder.py
--- a/rpython/jit/backend/ppc/codebuilder.py
+++ b/rpython/jit/backend/ppc/codebuilder.py
@@ -1073,14 +1073,14 @@
if IS_PPC_64:
self.load(r.TOC.value, r.SP.value, 5 * WORD)
- def make_function_prologue(self, frame_size):
- """ Build a new stackframe of size frame_size
- and store the LR in the previous frame.
- """
- with scratch_reg(self):
- self.store_update(r.SP.value, r.SP.value, -frame_size)
- self.mflr(r.SCRATCH.value)
- self.store(r.SCRATCH.value, r.SP.value, frame_size + LR_BC_OFFSET)
+ ## def make_function_prologue(self, frame_size):
+ ## """ Build a new stackframe of size frame_size
+ ## and store the LR in the previous frame.
+ ## """
+ ## with scratch_reg(self):
+ ## self.store_update(r.SP.value, r.SP.value, -frame_size)
+ ## self.mflr(r.SCRATCH.value)
+ ## self.store(r.SCRATCH.value, r.SP.value, frame_size +
LR_BC_OFFSET)
def restore_LR_from_caller_frame(self, frame_size):
""" Restore the LR from the calling frame.
diff --git a/rpython/jit/backend/ppc/helper/assembler.py
b/rpython/jit/backend/ppc/helper/assembler.py
--- a/rpython/jit/backend/ppc/helper/assembler.py
+++ b/rpython/jit/backend/ppc/helper/assembler.py
@@ -1,7 +1,6 @@
import rpython.jit.backend.ppc.condition as c
from rpython.rlib.rarithmetic import intmask
-from rpython.jit.backend.ppc.arch import (MAX_REG_PARAMS, IS_PPC_32, WORD,
- BACKCHAIN_SIZE)
+from rpython.jit.backend.ppc.arch import MAX_REG_PARAMS, IS_PPC_32, WORD
from rpython.jit.metainterp.history import FLOAT
import rpython.jit.backend.ppc.register as r
from rpython.rtyper.lltypesystem import rffi, lltype
diff --git a/rpython/jit/backend/ppc/opassembler.py
b/rpython/jit/backend/ppc/opassembler.py
--- a/rpython/jit/backend/ppc/opassembler.py
+++ b/rpython/jit/backend/ppc/opassembler.py
@@ -5,9 +5,8 @@
import rpython.jit.backend.ppc.register as r
from rpython.jit.backend.ppc.locations import imm
from rpython.jit.backend.ppc.locations import imm as make_imm_loc
-from rpython.jit.backend.ppc.arch import (IS_PPC_32, WORD, BACKCHAIN_SIZE,
- MAX_REG_PARAMS, MAX_FREG_PARAMS,
- FORCE_INDEX_OFS, JITFRAME_FIXED_SIZE)
+from rpython.jit.backend.ppc.arch import (IS_PPC_32, WORD,
+ MAX_REG_PARAMS, MAX_FREG_PARAMS)
from rpython.jit.metainterp.history import (JitCellToken, TargetToken, Box,
AbstractFailDescr, FLOAT, INT, REF)
diff --git a/rpython/jit/backend/ppc/ppc_assembler.py
b/rpython/jit/backend/ppc/ppc_assembler.py
--- a/rpython/jit/backend/ppc/ppc_assembler.py
+++ b/rpython/jit/backend/ppc/ppc_assembler.py
@@ -4,13 +4,8 @@
from rpython.jit.backend.ppc.codebuilder import (PPCBuilder,
OverwritingBuilder,
scratch_reg)
from rpython.jit.backend.ppc.arch import (IS_PPC_32, IS_PPC_64, WORD,
- NONVOLATILES, MAX_REG_PARAMS,
- GPR_SAVE_AREA, BACKCHAIN_SIZE,
- FPR_SAVE_AREA, NONVOLATILES_FLOAT,
- FLOAT_INT_CONVERSION, FORCE_INDEX,
- SIZE_LOAD_IMM_PATCH_SP,
- FORCE_INDEX_OFS, LR_BC_OFFSET,
- JITFRAME_FIXED_SIZE)
+ LR_BC_OFFSET,
+ STD_FRAME_SIZE_IN_BYTES)
from rpython.jit.backend.ppc.helper.assembler import Saved_Volatiles
from rpython.jit.backend.ppc.helper.regalloc import _check_imm_arg
import rpython.jit.backend.ppc.register as r
@@ -73,17 +68,17 @@
class AssemblerPPC(OpAssembler, BaseAssembler):
- ENCODING_AREA = FORCE_INDEX_OFS
- OFFSET_SPP_TO_GPR_SAVE_AREA = (FORCE_INDEX + FLOAT_INT_CONVERSION
- + ENCODING_AREA)
- OFFSET_SPP_TO_FPR_SAVE_AREA = (OFFSET_SPP_TO_GPR_SAVE_AREA
- + GPR_SAVE_AREA)
- OFFSET_SPP_TO_OLD_BACKCHAIN = (OFFSET_SPP_TO_GPR_SAVE_AREA
- + GPR_SAVE_AREA + FPR_SAVE_AREA)
+ #ENCODING_AREA = FORCE_INDEX_OFS
+ #OFFSET_SPP_TO_GPR_SAVE_AREA = (FORCE_INDEX + FLOAT_INT_CONVERSION
+ # + ENCODING_AREA)
+ #OFFSET_SPP_TO_FPR_SAVE_AREA = (OFFSET_SPP_TO_GPR_SAVE_AREA
+ # + GPR_SAVE_AREA)
+ #OFFSET_SPP_TO_OLD_BACKCHAIN = (OFFSET_SPP_TO_GPR_SAVE_AREA
+ # + GPR_SAVE_AREA + FPR_SAVE_AREA)
- OFFSET_STACK_ARGS = OFFSET_SPP_TO_OLD_BACKCHAIN + BACKCHAIN_SIZE * WORD
- if IS_PPC_64:
- OFFSET_STACK_ARGS += MAX_REG_PARAMS * WORD
+ #OFFSET_STACK_ARGS = OFFSET_SPP_TO_OLD_BACKCHAIN + BACKCHAIN_SIZE * WORD
+ #if IS_PPC_64:
+ # OFFSET_STACK_ARGS += MAX_REG_PARAMS * WORD
def __init__(self, cpu, translate_support_code=False):
self.cpu = cpu
@@ -676,15 +671,46 @@
fpreg = r.MANAGED_FP_REGS[i]
mc.stfd(fpreg.value, r.SPP.value, (i + FLOAT_OFFSET) * WORD)
- def gen_bootstrap_code(self, loophead, spilling_area):
- self._insert_stack_check()
- self._make_frame(spilling_area)
- self.mc.b_offset(loophead)
+ #def gen_bootstrap_code(self, loophead, spilling_area):
+ # self._insert_stack_check()
+ # self._make_frame(spilling_area)
+ # self.mc.b_offset(loophead)
- def _insert_stack_check(self):
+ def _call_header(self):
+ # Build a new stackframe of size STD_FRAME_SIZE_IN_BYTES
+ self.mc.store_update(r.SP.value, r.SP.value, -STD_FRAME_SIZE_IN_BYTES)
+ self.mc.mflr(r.SCRATCH.value)
+ self.mc.store(r.SCRATCH.value, r.SP.value,
+ STD_FRAME_SIZE_IN_BYTES + LR_BC_OFFSET)
+
+ XXXX
+ # save SPP at the bottom of the stack frame
+ self.mc.store(r.SPP.value, r.SP.value, WORD)
+
+ # compute spilling pointer (SPP)
+ self.mc.addi(r.SPP.value, r.SP.value,
+ frame_depth - self.OFFSET_SPP_TO_OLD_BACKCHAIN)
+
+ # save nonvolatile registers
+ self._save_nonvolatiles()
+
+ # save r31, use r30 as scratch register
+ # this is safe because r30 has been saved already
+ assert NONVOLATILES[-1] == r.SPP
+ ofs_to_r31 = (self.OFFSET_SPP_TO_GPR_SAVE_AREA +
+ WORD * (len(NONVOLATILES)-1))
+ self.mc.load(r.r30.value, r.SP.value, WORD)
+ self.mc.store(r.r30.value, r.SPP.value, ofs_to_r31)
+ gcrootmap = self.cpu.gc_ll_descr.gcrootmap
+ if gcrootmap and gcrootmap.is_shadow_stack:
+ self.gen_shadowstack_header(gcrootmap)
+
+ def _call_header_with_stack_check(self):
+ self._call_header()
if self.stack_check_slowpath == 0:
pass # not translated
else:
+ XXXX
# this is the size for the miniframe
frame_size = BACKCHAIN_SIZE * WORD
@@ -733,24 +759,23 @@
pmc.bc(4, 1, offset) # jump if SCRATCH <= r16, i. e. not(SCRATCH >
r16)
pmc.overwrite()
- def setup(self, looptoken, operations):
- self.current_clt = looptoken.compiled_loop_token
- operations = self.cpu.gc_ll_descr.rewrite_assembler(self.cpu,
- operations, self.current_clt.allgcrefs)
- assert self.memcpy_addr != 0
+ def setup(self, looptoken):
+ BaseAssembler.setup(self, looptoken)
+ assert self.memcpy_addr != 0, "setup_once() not called?"
+ self.current_clt = looptoken.compiled_loop_token
+ self.pending_guard_tokens = []
+ #if WORD == 8:
+ # self.pending_memoryerror_trampoline_from = []
+ # self.error_trampoline_64 = 0
self.mc = PPCBuilder()
- self.pending_guards = []
+ #assert self.datablockwrapper is None --- but obscure case
+ # possible, e.g. getting MemoryError and continuing
allblocks = self.get_asmmemmgr_blocks(looptoken)
self.datablockwrapper = MachineDataBlockWrapper(self.cpu.asmmemmgr,
allblocks)
- self.max_stack_params = 0
self.target_tokens_currently_compiling = {}
self.frame_depth_to_patch = []
- self._finish_gcmap = lltype.nullptr(jitframe.GCMAP)
- return operations # do we really need this return?
-
- def setup_once(self):
- BaseAssembler.setup_once(self)
+ #self.max_stack_params = 0
def _append_debugging_code(self, operations, tp, number, token):
counter = self._register_counter(tp, number, token)
@@ -788,77 +813,74 @@
baseofs = self.cpu.get_baseofs_of_frame_field()
self.current_clt.frame_info.update_frame_depth(baseofs, frame_depth)
- def assemble_loop(self, loopname, inputargs, operations, looptoken, log):
+ @rgc.no_release_gil
+ def assemble_loop(self, jd_id, unique_id, logger, loopname, inputargs,
+ operations, looptoken, log):
clt = CompiledLoopToken(self.cpu, looptoken.number)
- clt.allgcrefs = []
looptoken.compiled_loop_token = clt
clt._debug_nbargs = len(inputargs)
-
if not we_are_translated():
+ # Arguments should be unique
assert len(set(inputargs)) == len(inputargs)
- operations = self.setup(looptoken, operations)
+ self.setup(looptoken)
+ frame_info = self.datablockwrapper.malloc_aligned(
+ jitframe.JITFRAMEINFO_SIZE, alignment=WORD)
+ clt.frame_info = rffi.cast(jitframe.JITFRAMEINFOPTR, frame_info)
+ clt.allgcrefs = []
+ clt.frame_info.clear() # for now
if log:
operations = self._inject_debugging_code(looptoken, operations,
'e', looptoken.number)
- self.startpos = self.mc.currpos()
regalloc = Regalloc(assembler=self)
+ #
+ self._call_header_with_stack_check()
+ operations = regalloc.prepare_loop(inputargs, operations,
+ looptoken, clt.allgcrefs)
+ looppos = self.mc.get_relative_pos()
+ frame_depth_no_fixed_size = self._assemble(regalloc, inputargs,
+ operations)
+ self.update_frame_depth(frame_depth_no_fixed_size +
JITFRAME_FIXED_SIZE)
+ #
+ size_excluding_failure_stuff = self.mc.get_relative_pos()
+ self.write_pending_failure_recoveries()
+ full_size = self.mc.get_relative_pos()
+ #
+ rawstart = self.materialize_loop(looptoken)
+ self.patch_stack_checks(frame_depth_no_fixed_size +
JITFRAME_FIXED_SIZE,
+ rawstart)
+ looptoken._ll_loop_code = looppos + rawstart
+ debug_start("jit-backend-addr")
+ debug_print("Loop %d (%s) has address 0x%x to 0x%x (bootstrap 0x%x)" %
(
+ looptoken.number, loopname,
+ r_uint(rawstart + looppos),
+ r_uint(rawstart + size_excluding_failure_stuff),
+ r_uint(rawstart)))
+ debug_stop("jit-backend-addr")
+ self.patch_pending_failure_recoveries(rawstart)
+ #
+ ops_offset = self.mc.ops_offset
+ if not we_are_translated():
+ # used only by looptoken.dump() -- useful in tests
+ looptoken._x86_rawstart = rawstart
+ looptoken._x86_fullsize = full_size
+ looptoken._x86_ops_offset = ops_offset
+ looptoken._ll_function_addr = rawstart
+ if logger:
+ logger.log_loop(inputargs, operations, 0, "rewritten",
+ name=loopname, ops_offset=ops_offset)
- regalloc.prepare_loop(inputargs, operations, looptoken)
-
- start_pos = self.mc.currpos()
- looptoken._ppc_loop_code = start_pos
- clt.frame_depth = clt.param_depth = -1
- spilling_area, param_depth = self._assemble(operations, regalloc)
- size_excluding_failure_stuff = self.mc.currpos()
- clt.frame_depth = spilling_area
- clt.param_depth = param_depth
- frame_info =
self.datablockwrapper.malloc_aligned(jitframe.JITFRAMEINFO_SIZE,
- alignment=WORD)
- clt.frame_info = rffi.cast(jitframe.JITFRAMEINFOPTR, frame_info)
-
- direct_bootstrap_code = self.mc.currpos()
- frame_depth = self.compute_frame_depth(spilling_area, param_depth)
- frame_depth += JITFRAME_FIXED_SIZE
- self.update_frame_depth(frame_depth)
- self.gen_bootstrap_code(start_pos, frame_depth)
-
- self.write_pending_failure_recoveries()
- if IS_PPC_64:
- fdescr = self.gen_64_bit_func_descr()
-
- # write instructions to memory
- loop_start = self.materialize_loop(looptoken, False)
- self.fixup_target_tokens(loop_start)
-
- real_start = loop_start + direct_bootstrap_code
- if IS_PPC_32:
- looptoken._ppc_func_addr = looptoken._ll_function_addr = real_start
- else:
- self.write_64_bit_func_descr(fdescr, real_start)
- looptoken._ppc_func_addr = looptoken._ll_function_addr = fdescr
-
- self.process_pending_guards(loop_start)
-
- if log and not we_are_translated():
- self.mc._dump_trace(real_start,
- 'loop.asm')
-
- ops_offset = self.mc.ops_offset
+ self.fixup_target_tokens(rawstart)
self.teardown()
-
- debug_start("jit-backend-addr")
- debug_print("Loop %d (%s) has address %x to %x (bootstrap %x)" % (
- looptoken.number, loopname,
- real_start,
- real_start + size_excluding_failure_stuff,
- loop_start))
- debug_stop("jit-backend-addr")
-
- return AsmInfo(ops_offset, loop_start,
- size_excluding_failure_stuff - start_pos)
+ # oprofile support
+ if self.cpu.profile_agent is not None:
+ name = "Loop # %s: %s" % (looptoken.number, loopname)
+ self.cpu.profile_agent.native_code_written(name,
+ rawstart, full_size)
+ return AsmInfo(ops_offset, rawstart + looppos,
+ size_excluding_failure_stuff - looppos)
def _assemble(self, operations, regalloc):
regalloc.compute_hint_frame_locations(operations)
diff --git a/rpython/jit/backend/ppc/register.py
b/rpython/jit/backend/ppc/register.py
--- a/rpython/jit/backend/ppc/register.py
+++ b/rpython/jit/backend/ppc/register.py
@@ -17,8 +17,10 @@
VOLATILES = [r0, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12]
# volatile r2 is persisted around calls and r13 can be ignored
-NONVOLATILES_FLOAT = [f14, f15, f16, f17, f18, f19, f20, f21, f22, f23,
- f24, f25, f26, f27, f28, f29, f30, f31]
+# we don't use any non-volatile float register, to keep the frame header
+# code short-ish
+#NONVOLATILES_FLOAT = [f14, f15, f16, f17, f18, f19, f20, f21, f22, f23,
+# f24, f25, f26, f27, f28, f29, f30, f31]
VOLATILES_FLOAT = [f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13]
SCRATCH = r0
@@ -28,12 +30,12 @@
RES = r3
SPP = r31
-MANAGED_REGS = [r3, r4, r5, r6, r7, r8, r9, r10,
- r11, r12, r14, r15, r16, r17, r18,
- r19, r20, r21, r22, r23, r24, r25, r26,
- r27, r28, r29, r30]
+MANAGED_REGS = [r3, r4, r5, r6, r7, r8, r9, r10, r11, r12,
+ r25, r26, r27, r28, r29, r30]
+ # registers r14 to r24 are not touched, we have enough
+ # registers already
-MANAGED_FP_REGS = VOLATILES_FLOAT[1:] + NONVOLATILES_FLOAT
+MANAGED_FP_REGS = VOLATILES_FLOAT[1:] #+ NONVOLATILES_FLOAT
PARAM_REGS = [r3, r4, r5, r6, r7, r8, r9, r10]
PARAM_FPREGS = [f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13]
diff --git a/rpython/jit/backend/ppc/runner.py
b/rpython/jit/backend/ppc/runner.py
--- a/rpython/jit/backend/ppc/runner.py
+++ b/rpython/jit/backend/ppc/runner.py
@@ -1,7 +1,7 @@
import py
from rpython.rtyper.lltypesystem import lltype, llmemory, rffi
from rpython.rtyper.llinterp import LLInterpreter
-from rpython.jit.backend.ppc.arch import FORCE_INDEX_OFS
+#from rpython.jit.backend.ppc.arch import FORCE_INDEX_OFS
from rpython.jit.backend.llsupport.llmodel import AbstractLLCPU
from rpython.jit.backend.ppc.ppc_assembler import AssemblerPPC
from rpython.jit.backend.ppc.arch import WORD
@@ -43,10 +43,6 @@
def finish_once(self):
self.assembler.finish_once()
- def compile_loop(self, inputargs, operations, looptoken, log=True,
name=""):
- return self.assembler.assemble_loop(name, inputargs,
- operations, looptoken, log)
-
def compile_bridge(self, faildescr, inputargs, operations,
original_loop_token, log=False):
clt = original_loop_token.compiled_loop_token
@@ -54,12 +50,6 @@
return self.assembler.assemble_bridge(faildescr, inputargs, operations,
original_loop_token, log=log)
- def clear_latest_values(self, count):
- setitem = self.assembler.fail_boxes_ptr.setitem
- null = lltype.nullptr(llmemory.GCREF.TO)
- for index in range(count):
- setitem(index, null)
-
@staticmethod
def cast_ptr_to_int(x):
adr = llmemory.cast_ptr_to_adr(x)
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