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Allow modifying Julia's optim pipeline #30

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77 changes: 77 additions & 0 deletions src/gcn.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,83 @@ function process_kernel!(job::CompilerJob{GCNCompilerTarget}, mod::LLVM.Module,
callconv!(kernel, LLVM.API.LLVMCallConv(91))
end

function add_julia_optimizations!(job::CompilerJob{GCNCompilerTarget}, pm::LLVM.PassManager)
opt_level = Base.JLOptions().opt_level
# everying except unroll, slpvec, loop-vec
# then finish Julia GC
if opt_level < 2
cfgsimplification!(pm)
if opt_level == 1
scalar_repl_aggregates!(pm) # SSA variant?
instruction_combining!(pm)
early_cse!(pm)
end
mem_cpy_opt!(pm)
always_inliner!(pm)
lower_simdloop!(pm)
# GC passes
barrier_noop!(pm)
lower_exc_handlers!(pm)
gc_invariant_verifier!(pm, false)
else
#propagate_julia_addrsp!(pm)
scoped_no_alias_aa!(pm)
type_based_alias_analysis!(pm)
if opt_level >= 2
basic_alias_analysis!(pm)
end
cfgsimplification!(pm)
# TODO: DCE (doesn't exist in llvm-c)
scalar_repl_aggregates!(pm) # SSA variant?
mem_cpy_opt!(pm)
always_inliner!(pm)
alloc_opt!(pm)
instruction_combining!(pm)
cfgsimplification!(pm)
scalar_repl_aggregates!(pm) # SSA variant?
instruction_combining!(pm)
jump_threading!(pm)
instruction_combining!(pm)
reassociate!(pm)
early_cse!(pm)
alloc_opt!(pm)
loop_idiom!(pm)
loop_rotate!(pm)
lower_simdloop!(pm)
licm!(pm)
loop_unswitch!(pm)
instruction_combining!(pm)
ind_var_simplify!(pm)
loop_deletion!(pm)
# SimpleLoopUnroll
alloc_opt!(pm)
scalar_repl_aggregates!(pm) # SSA variant?
instruction_combining!(pm)
gvn!(pm)
mem_cpy_opt!(pm)
sccp!(pm)
# TODO: Sinking Pass
# TODO: LLVM <7 InstructionSimplifier
instruction_combining!(pm)
jump_threading!(pm)
dead_store_elimination!(pm)
alloc_opt!(pm)
cfgsimplification!(pm)
loop_idiom!(pm)
loop_deletion!(pm)
jump_threading!(pm)
# SLP_Vectorizer
aggressive_dce!(pm)
instruction_combining!(pm)
# Loop Vectorize
# InstCombine
# GC passes
barrier_noop!(pm)
lower_exc_handlers!(pm)
gc_invariant_verifier!(pm, false)
end
end

function add_lowering_passes!(job::CompilerJob{GCNCompilerTarget}, pm::LLVM.PassManager)
add!(pm, ModulePass("LowerThrowExtra", lower_throw_extra!))
end
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10 changes: 7 additions & 3 deletions src/optim.jl
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Original file line number Diff line number Diff line change
@@ -1,5 +1,11 @@
# LLVM IR optimization

function add_julia_optimizations!(job::CompilerJob, pm::LLVM.PassManager)
ccall(:jl_add_optimization_passes, Cvoid,
(LLVM.API.LLVMPassManagerRef, Cint, Cint),
LLVM.ref(pm), Base.JLOptions().opt_level, #=lower_intrinsics=# 0)
end

function optimize!(job::CompilerJob, mod::LLVM.Module, entry::LLVM.Function)
tm = llvm_machine(job.target)
entry_fn = LLVM.name(entry)
Expand All @@ -19,9 +25,7 @@ function optimize!(job::CompilerJob, mod::LLVM.Module, entry::LLVM.Function)

ModulePassManager() do pm
initialize!(pm)
ccall(:jl_add_optimization_passes, Cvoid,
(LLVM.API.LLVMPassManagerRef, Cint, Cint),
LLVM.ref(pm), Base.JLOptions().opt_level, #=lower_intrinsics=# 0)
add_julia_optimizations!(job, pm)
run!(pm, mod)
end

Expand Down