srenblad/artiq
1
0
Fork 0
forked from M-Labs/artiq
Code Pull Requests Activity

py2llvm/base_types: implement int, floor, floordiv, and boolean ops on floats

Browse Source
This commit is contained in:
Sebastien Bourdeauducq 2014-09-17 16:24:37 +08:00
parent 80f4bc7741
commit 97ad9efa85
1 changed files with 58 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
artiq/py2llvm/base_types.py
View File

@ -210,6 +210,64 @@ class VFloat(VGeneric):
r.auto_store(builder, self.auto_load(builder))
return r
def o_bool(self, builder, inv=False):
r = VBool()
if builder is not None:
r.auto_store(
builder, builder.fcmp(
lc.FCMP_UEQ if inv else lc.FCMP_UNE,
self.auto_load(builder),
lc.Constant.real(self.get_llvm_type(), 0.0)))
return r
def o_not(self, builder):
return self.o_bool(builder, True)
def o_neg(self, builder):
r = VFloat()
if builder is not None:
r.auto_store(
builder, builder.fmul(
self.auto_load(builder),
lc.Constant.real(self.get_llvm_type(), -1.0)))
return r
def o_intx(self, target_bits, builder):
r = VInt(target_bits)
if builder is not None:
r.auto_store(builder, builder.fptosi(self.auto_load(builder),
r.get_llvm_type()))
return r
def o_roundx(self, target_bits, builder):
r = VInt(target_bits)
if builder is not None:
function = builder.basic_block.function
neg_block = function.append_basic_block("fr_neg")
merge_block = function.append_basic_block("fr_merge")
half = VFloat()
half.alloca(builder, "half")
half.set_const_value(builder, 0.5)
condition = builder.icmp(
lc.FCMP_OLT,
self.auto_load(builder),
lc.Constant.real(self.get_llvm_type(), 0.0))
builder.cbranch(condition, neg_block, merge_block)
builder.position_at_end(neg_block)
half.set_const_value(builder, -0.5)
builder.branch(merge_block)
builder.position_at_end(merge_block)
s = builder.fadd(self.auto_load(builder), half.auto_load(builder))
r.auto_store(builder, builder.fptosi(s, r.get_llvm_type()))
return r
def o_floordiv(self, other, builder):
return self.o_truediv(other, builder).o_int64(builder).o_float(builder)
def _make_vfloat_binop_method(builder_name, reverse):
def binop_method(self, other, builder):
if not hasattr(other, "o_float"):