Author: Richard Plangger <planri...@gmail.com>
Branch:
Changeset: r82953:253deb8fdde5
Date: 2016-03-11 07:19 +0100
http://bitbucket.org/pypy/pypy/changeset/253deb8fdde5/
Log: removed some dead code in the literal pool, removed some comments,
unnecessary instruction
diff --git a/rpython/jit/backend/zarch/assembler.py
b/rpython/jit/backend/zarch/assembler.py
--- a/rpython/jit/backend/zarch/assembler.py
+++ b/rpython/jit/backend/zarch/assembler.py
@@ -602,7 +602,7 @@
def patch_stack_checks(self, frame_depth):
if frame_depth > 0x7fff:
- raise JitFrameTooDeep # XXX
+ raise JitFrameTooDeep
for traps_pos, jmp_target in self.frame_depth_to_patch:
pmc = OverwritingBuilder(self.mc, traps_pos, 3)
# patch 3 instructions as shown above
@@ -1022,8 +1022,6 @@
self.mc.STMG(r.r6, r.r15, l.addr(-fpoff+6*WORD, r.SP))
self.mc.LARL(r.POOL, l.halfword(self.pool.pool_start -
self.mc.get_relative_pos()))
# f8 through f15 are saved registers (= non volatile)
- # TODO it would be good to detect if any float is used in the loop
- # and to skip this push/pop whenever no float operation occurs
for i,reg in enumerate([r.f8, r.f9, r.f10, r.f11,
r.f12, r.f13, r.f14, r.f15]):
off = -fpoff + STD_FRAME_SIZE_IN_BYTES
@@ -1082,8 +1080,6 @@
size = STD_FRAME_SIZE_IN_BYTES
# f8 through f15 are saved registers (= non volatile)
- # TODO it would be good to detect if any float is used in the loop
- # and to skip this push/pop whenever no float operation occurs
for i,reg in enumerate([r.f8, r.f9, r.f10, r.f11,
r.f12, r.f13, r.f14, r.f15]):
self.mc.LD(reg, l.addr(size + size + i*8, r.SP))
@@ -1369,8 +1365,6 @@
SIZE2SCALE = dict([(1<<_i, _i) for _i in range(32)])
def _multiply_by_constant(self, loc, multiply_by, scratch_loc):
- # XXX should die together with _apply_scale() but can't because
- # of emit_zero_array() and malloc_cond_varsize() at the moment
assert loc.is_reg()
if multiply_by == 1:
return loc
diff --git a/rpython/jit/backend/zarch/callbuilder.py
b/rpython/jit/backend/zarch/callbuilder.py
--- a/rpython/jit/backend/zarch/callbuilder.py
+++ b/rpython/jit/backend/zarch/callbuilder.py
@@ -203,7 +203,6 @@
self.mc.XGR(r.SCRATCH, r.SCRATCH)
# zarch is sequentially consistent
self.mc.STG(r.SCRATCH, l.addr(0, RFASTGILPTR))
- self.mc.BCR_rr(0xe, 0x0)
def move_real_result_and_call_reacqgil_addr(self, fastgil):
diff --git a/rpython/jit/backend/zarch/pool.py
b/rpython/jit/backend/zarch/pool.py
--- a/rpython/jit/backend/zarch/pool.py
+++ b/rpython/jit/backend/zarch/pool.py
@@ -128,30 +128,3 @@
# fast gil
fastgil = rffi.cast(lltype.Signed, rgil.gil_fetch_fastgil())
self._ensure_value(fastgil, asm)
- # TODO add more values that are loaded with load_imm
-
- # XXX def post_assemble(self, asm):
- # XXX mc = asm.mc
- # XXX pending_guard_tokens = asm.pending_guard_tokens
- # XXX if self.size == 0:
- # XXX return
- # XXX for guard_token in pending_guard_tokens:
- # XXX descr = guard_token.faildescr
- # XXX offset = self.offset_descr[descr]
- # XXX assert isinstance(offset, int)
- # XXX assert offset >= 0
- # XXX assert guard_token._pool_offset != -1
- # XXX ptr = rffi.cast(lltype.Signed, guard_token.gcmap)
- # XXX self._overwrite_64(mc, offset + RECOVERY_GCMAP_POOL_OFFSET,
ptr)
-
- def _overwrite_64(self, mc, index, value):
- index += self.pool_start
-
- mc.overwrite(index, chr(value >> 56 & 0xff))
- mc.overwrite(index+1, chr(value >> 48 & 0xff))
- mc.overwrite(index+2, chr(value >> 40 & 0xff))
- mc.overwrite(index+3, chr(value >> 32 & 0xff))
- mc.overwrite(index+4, chr(value >> 24 & 0xff))
- mc.overwrite(index+5, chr(value >> 16 & 0xff))
- mc.overwrite(index+6, chr(value >> 8 & 0xff))
- mc.overwrite(index+7, chr(value & 0xff))
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