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from _common import rootrel_arc_src, sort_by_keywords, skip_build_root
def onllvm_bc(unit, *args):
free_args, kwds = sort_by_keywords(
{'SYMBOLS': -1, 'NAME': 1, 'GENERATE_MACHINE_CODE': 0, 'NO_COMPILE': 0, 'SUFFIX': 1}, args
)
name = kwds['NAME'][0]
symbols = kwds.get('SYMBOLS')
obj_suf = kwds['SUFFIX'][0] if 'SUFFIX' in kwds else '' + unit.get('OBJ_SUF')
skip_compile_step = 'NO_COMPILE' in kwds
merged_bc = name + '_merged' + obj_suf + '.bc'
out_bc = name + '_optimized' + obj_suf + '.bc'
bcs = []
for x in free_args:
rel_path = rootrel_arc_src(x, unit)
bc_path = '${ARCADIA_BUILD_ROOT}/' + skip_build_root(rel_path) + obj_suf + '.bc'
if not skip_compile_step:
if x.endswith('.c'):
llvm_compile = unit.onllvm_compile_c
elif x.endswith('.ll'):
llvm_compile = unit.onllvm_compile_ll
else:
llvm_compile = unit.onllvm_compile_cxx
llvm_compile([rel_path, bc_path])
bcs.append(bc_path)
unit.onllvm_link([merged_bc] + bcs)
passes = ['default<O2>', 'globalopt', 'globaldce']
opt_opts = []
if symbols:
passes += ['internalize']
# XXX: '#' used instead of ',' to overcome ymake tendency to split everything by comma
opt_opts += ['-internalize-public-api-list=' + '#'.join(symbols)]
# Add additional quotes for cmake build.
# Generated final option for cmake looks like: -passes="..."
opt_opts += ['\'-passes="{}"\''.format('${__COMMA__}'.join(passes))]
unit.onllvm_opt([merged_bc, out_bc] + opt_opts)
if 'GENERATE_MACHINE_CODE' in kwds:
unit.onllvm_llc([out_bc, '-O2'])
else:
unit.onresource([out_bc, '/llvm_bc/' + name])
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