All of GCC’s passes — gcc-python-plugin 0.16 documentation (original) (raw)

gcc-python-plugin

This diagram shows the various GCC optimization passes, arranged vertically, showing child passes via indentation.

The lifetime of the various properties that they maintain is shown, giving the pass that initially creates the data (if any), the pass that destroys it (if any), and each pass that requires a particular property (based on the PROP_* flags).

These tables contain the same information. The diagram and tables were autogenerated, using GCC 4.6.0

The lowering passes¶

Pass Name	Required properties	Provided properties	Destroyed properties
*warn_unused_result	gimple_any
*diagnose_omp_blocks	gimple_any
mudflap1	gimple_any
omplower	gimple_any	gimple_lomp
lower	gimple_any	gimple_lcf
ehopt	gimple_lcf
eh	gimple_lcf	gimple_leh
cfg	gimple_leh	cfg
*warn_function_return	cfg
*build_cgraph_edges	cfg

The “small IPA” passes¶

Pass Name	Required properties	Provided properties	Destroyed properties
*free_lang_data	gimple_any, gimple_lcf, gimple_leh, cfg
visibility
early_local_cleanups
> *free_cfg_annotations	cfg
> *init_datastructures	cfg
> ompexp	gimple_any
> *referenced_vars	gimple_leh, cfg	referenced_vars
> ssa	cfg, referenced_vars	ssa
> veclower	cfg
> *early_warn_uninitialized	ssa
> *rebuild_cgraph_edges	cfg
> inline_param
> einline
> early_optimizations
> > *remove_cgraph_callee_edges
> > copyrename	cfg, ssa
> > ccp	cfg, ssa
> > forwprop	cfg, ssa
> > ealias	cfg, ssa
> > esra	cfg, ssa
> > copyprop	cfg, ssa
> > mergephi	cfg, ssa
> > cddce	cfg, ssa
> > eipa_sra
> > tailr	cfg, ssa
> > switchconv	cfg, ssa
> > ehcleanup	gimple_lcf
> > profile	cfg
> > local-pure-const
> > fnsplit	cfg
> release_ssa	ssa
> *rebuild_cgraph_edges	cfg
> inline_param
tree_profile_ipa
> feedback_fnsplit	cfg
increase_alignment
matrix-reorg
emutls	cfg, ssa

The “regular IPA” passes¶

Pass Name	Required properties	Provided properties	Destroyed properties
whole-program	gimple_any, gimple_lcf, gimple_leh, cfg
ipa-profile
cp
cdtor
inline
pure-const
static-var
type-escape-var
pta
ipa_struct_reorg

Passes generating Link-Time Optimization data¶

Pass Name	Required properties	Provided properties	Destroyed properties
lto_gimple_out	gimple_any, gimple_lcf, gimple_leh, cfg
lto_decls_out

The “all other passes” catch-all¶

Pass Name	Required properties	Provided properties	Destroyed properties
ehdisp	gimple_any, gimple_lcf, gimple_leh, cfg
*all_optimizations
> *remove_cgraph_callee_edges
> *strip_predict_hints	cfg
> copyrename	cfg, ssa
> cunrolli	cfg, ssa
> ccp	cfg, ssa
> forwprop	cfg, ssa
> cdce	cfg, ssa
> alias	cfg, ssa
> retslot	ssa
> phiprop	cfg, ssa
> fre	cfg, ssa
> copyprop	cfg, ssa
> mergephi	cfg, ssa
> vrp	ssa
> dce	cfg, ssa
> cselim	cfg, ssa
> ifcombine	cfg, ssa
> phiopt	cfg, ssa
> tailr	cfg, ssa
> ch	cfg, ssa
> stdarg	cfg, ssa
> cplxlower	ssa	gimple_lcx
> sra	cfg, ssa
> copyrename	cfg, ssa
> dom	cfg, ssa
> phicprop	cfg, ssa
> dse	cfg, ssa
> reassoc	cfg, ssa
> dce	cfg, ssa
> forwprop	cfg, ssa
> phiopt	cfg, ssa
> objsz	cfg, ssa
> ccp	cfg, ssa
> copyprop	cfg, ssa
> sincos	ssa
> bswap	ssa
> crited	cfg	no_crit_edges
> pre	cfg, ssa, no_crit_edges
> sink	cfg, ssa, no_crit_edges
> loop	cfg
> > loopinit	cfg
> > lim	cfg
> > copyprop	cfg, ssa
> > dceloop	cfg, ssa
> > unswitch	cfg
> > sccp	cfg, ssa
> > *record_bounds	cfg, ssa
> > ckdd	cfg, ssa
> > ldist	cfg, ssa
> > copyprop	cfg, ssa
> > graphite0	cfg, ssa
> > > graphite	cfg, ssa
> > > lim	cfg
> > > copyprop	cfg, ssa
> > > dceloop	cfg, ssa
> > ivcanon	cfg, ssa
> > ifcvt	cfg, ssa
> > vect	cfg, ssa
> > > veclower2	cfg
> > > dceloop	cfg, ssa
> > pcom	cfg
> > cunroll	cfg, ssa
> > slp	cfg, ssa
> > parloops	cfg, ssa
> > aprefetch	cfg, ssa
> > ivopts	cfg, ssa
> > loopdone	cfg
> recip	ssa
> reassoc	cfg, ssa
> vrp	ssa
> dom	cfg, ssa
> phicprop	cfg, ssa
> cddce	cfg, ssa
> tracer
> uninit	ssa
> dse	cfg, ssa
> forwprop	cfg, ssa
> phiopt	cfg, ssa
> fab	cfg, ssa
> widening_mul	ssa
> tailc	cfg, ssa
> copyrename	cfg, ssa
> uncprop	cfg, ssa
> local-pure-const
cplxlower0	cfg	gimple_lcx
ehcleanup	gimple_lcf
resx	gimple_lcf
nrv	cfg, ssa
mudflap2	gimple_leh, cfg, ssa
optimized	cfg
*warn_function_noreturn	cfg
expand	gimple_leh, cfg, ssa, gimple_lcx	rtl	gimple_any, gimple_lcf, gimple_leh, ssa, gimple_lomp
*rest_of_compilation	rtl
> *init_function
> sibling
> rtl eh
> initvals
> unshare
> vregs
> into_cfglayout		cfglayout
> jump
> subreg1
> dfinit
> cse1
> fwprop1
> cprop	cfglayout
> rtl pre	cfglayout
> hoist	cfglayout
> cprop	cfglayout
> store_motion	cfglayout
> cse_local
> ce1
> reginfo
> loop2
> > loop2_init
> > loop2_invariant
> > loop2_unswitch
> > loop2_unroll
> > loop2_doloop
> > loop2_done
> web
> cprop	cfglayout
> cse2
> dse1
> fwprop2
> auto_inc_dec
> init-regs
> ud dce
> combine	cfglayout
> ce2
> bbpart	cfglayout
> regmove
> outof_cfglayout			cfglayout
> split1
> subreg2
> no-opt dfinit
> *stack_ptr_mod
> mode_sw
> asmcons
> sms
> sched1
> ira
> *all-postreload	rtl
> > postreload
> > gcse2
> > split2
> > zee
> > cmpelim
> > btl1
> > pro_and_epilogue
> > dse2
> > csa
> > peephole2
> > ce3
> > rnreg
> > cprop_hardreg
> > rtl dce
> > bbro
> > btl2
> > *leaf_regs
> > split4
> > sched2
> > *stack_regs
> > > split3
> > > stack
> > alignments
> > compgotos
> > vartrack
> > *free_cfg			cfg
> > mach
> > barriers
> > dbr
> > split5
> > eh_ranges
> > shorten
> > nothrow
> > final
> dfinish
*clean_state			rtl