diff options
Diffstat (limited to 'gcc/passes.c')
| -rw-r--r-- | gcc/passes.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/gcc/passes.c b/gcc/passes.c index 4dd4ac8..ab37f20 100644 --- a/gcc/passes.c +++ b/gcc/passes.c @@ -505,11 +505,12 @@ init_optimization_passes (void) NEXT_PASS (pass_dce); NEXT_PASS (pass_dominator); - /* The only copy propagation opportunities left after DOM - should be due to degenerate PHI nodes. So rather than - run the full copy propagator, just discover and copy - propagate away the degenerate PHI nodes. */ - NEXT_PASS (pass_phi_only_copy_prop); + /* The only const/copy propagation opportunities left after + DOM should be due to degenerate PHI nodes. So rather than + run the full propagators, run a specialized pass which + only examines PHIs to discover const/copy propagation + opportunities. */ + NEXT_PASS (pass_phi_only_cprop); NEXT_PASS (pass_phiopt); NEXT_PASS (pass_may_alias); @@ -526,11 +527,12 @@ init_optimization_passes (void) NEXT_PASS (pass_rename_ssa_copies); NEXT_PASS (pass_dominator); - /* The only copy propagation opportunities left after DOM - should be due to degenerate PHI nodes. So rather than - run the full copy propagator, just discover and copy - propagate away the degenerate PHI nodes. */ - NEXT_PASS (pass_phi_only_copy_prop); + /* The only const/copy propagation opportunities left after + DOM should be due to degenerate PHI nodes. So rather than + run the full propagators, run a specialized pass which + only examines PHIs to discover const/copy propagation + opportunities. */ + NEXT_PASS (pass_phi_only_cprop); NEXT_PASS (pass_reassoc); NEXT_PASS (pass_dce); @@ -556,11 +558,12 @@ init_optimization_passes (void) NEXT_PASS (pass_vrp); NEXT_PASS (pass_dominator); - /* The only copy propagation opportunities left after DOM - should be due to degenerate PHI nodes. So rather than - run the full copy propagator, just discover and copy - propagate away the degenerate PHI nodes. */ - NEXT_PASS (pass_phi_only_copy_prop); + /* The only const/copy propagation opportunities left after + DOM should be due to degenerate PHI nodes. So rather than + run the full propagators, run a specialized pass which + only examines PHIs to discover const/copy propagation + opportunities. */ + NEXT_PASS (pass_phi_only_cprop); NEXT_PASS (pass_cd_dce); |