The regression was introduced between r120825 (10s runtime) and r120846 (110s
runtime). The obvious candidate is:
+2007-01-16 Jan Hubicka <[EMAIL PROTECTED]>
+
+ * cgraph.h (cgraph_decide_inlining_incrementally): Kill.
+ * tree-pass.h: Reorder to make IPA passes appear toegher.
+ (pass_early_inline, pass_inline_parameters, pass_apply_inline):
Declare.+ * cgraphunit.c (cgraph_finalize_function): Do not compute
inling
+ parameters, do not call early inliner.
+ * ipa-inline.c: Update comments. Include tree-flow.h
+ (cgraph_decide_inlining): Do not compute inlining parameters.
+ (cgraph_decide_inlining_incrementally): Return TODOs; assume to
+ be called with function context set up.
+ (pass_ipa_inline): Remove unreachable functions before pass.
+ (cgraph_early_inlining): Simplify assuming to be called from the
+ PM as local pass.
+ (pass_early_inline): New pass.
+ (cgraph_gate_ipa_early_inlining): New gate.
+ (pass_ipa_early_inline): Turn into simple wrapper.
+ (compute_inline_parameters): New function.
+ (gate_inline_passes): New gate.
+ (pass_inline_parameters): New pass.
+ (apply_inline): Move here from tree-optimize.c
+ (pass_apply_inline): New pass.
+ * ipa.c (cgraph_remove_unreachable_nodes): Verify cgraph after
+ transforming.
+ * tree-inline.c (optimize_inline_calls): Return TODOs rather than
+ doing them by hand.
+ (tree_function_versioning): Do not allocate dummy struct function.
+ * tree-inline.h (optimize_inline_calls): Update prototype.
+ * tree-optimize.c (execute_fixup_cfg): Export.
+ (pass_fixup_cfg): Remove
+ (tree_rest_of_compilation): Do not apply inlines.
+ * tree-flow.h (execute_fixup_cfg): Declare.
+ * Makefile.in (gt-passes.c): New.
+ * passes.c: Include gt-passes.h
+ (init_optimization_passes): New passes.
+ (nnodes, order): New static vars.
+ (do_per_function_toporder): New function.
+ (execute_one_pass): Dump current pass here.
+ (execute_ipa_pass_list): Don't dump current pass here.
--
Summary: [4.3 Regression] 1000% Runtime regression for FreeFEM
navier-stokes example
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31191
