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[Bug tree-optimization/23955] Compile time regressions with tramp3d
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Sep 2005 08:46:49 -0000
- Subject: [Bug tree-optimization/23955] Compile time regressions with tramp3d
- References: <20050918174933.23955.rguenth@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rguenth at gcc dot gnu dot org 2005-09-19 08:46 -------
4.0 leafify timings, this time on the same machine (sigh!) as the 4.1 numbers:
Execution times (seconds)
garbage collection : 4.56 ( 4%) usr 0.08 ( 1%) sys 4.66 ( 3%) wall
callgraph construction: 0.28 ( 0%) usr 0.01 ( 0%) sys 0.28 ( 0%) wall
callgraph optimization: 0.66 ( 1%) usr 0.03 ( 1%) sys 0.69 ( 1%) wall
cfg construction : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
cfg cleanup : 0.90 ( 1%) usr 0.00 ( 0%) sys 0.99 ( 1%) wall
trivially dead code : 0.49 ( 0%) usr 0.00 ( 0%) sys 0.44 ( 0%) wall
life analysis : 2.15 ( 2%) usr 0.00 ( 0%) sys 2.15 ( 2%) wall
life info update : 0.18 ( 0%) usr 0.00 ( 0%) sys 0.15 ( 0%) wall
alias analysis : 0.71 ( 1%) usr 0.02 ( 0%) sys 0.85 ( 1%) wall
register scan : 0.42 ( 0%) usr 0.00 ( 0%) sys 0.46 ( 0%) wall
rebuild jump labels : 0.10 ( 0%) usr 0.00 ( 0%) sys 0.17 ( 0%) wall
preprocessing : 0.50 ( 0%) usr 0.45 ( 8%) sys 1.10 ( 1%) wall
parser : 4.83 ( 4%) usr 0.95 (18%) sys 5.55 ( 4%) wall
name lookup : 1.67 ( 1%) usr 0.92 (17%) sys 2.82 ( 2%) wall
integration : 46.10 (36%) usr 0.08 ( 1%) sys 46.12 (34%) wall
tree gimplify : 0.64 ( 0%) usr 0.01 ( 0%) sys 0.64 ( 0%) wall
tree eh : 0.28 ( 0%) usr 0.00 ( 0%) sys 0.24 ( 0%) wall
tree CFG construction : 0.76 ( 1%) usr 0.00 ( 0%) sys 0.73 ( 1%) wall
tree CFG cleanup : 0.97 ( 1%) usr 0.02 ( 0%) sys 0.93 ( 1%) wall
tree find referenced vars: 0.94 ( 1%) usr 0.01 ( 0%) sys 0.90 ( 1%) wall
tree PTA : 1.66 ( 1%) usr 0.00 ( 0%) sys 1.96 ( 1%) wall
tree alias analysis : 6.80 ( 5%) usr 0.02 ( 0%) sys 6.64 ( 5%) wall
tree PHI insertion : 1.77 ( 1%) usr 0.00 ( 0%) sys 1.68 ( 1%) wall
tree SSA rewrite : 2.32 ( 2%) usr 0.00 ( 0%) sys 2.46 ( 2%) wall
tree SSA other : 3.73 ( 3%) usr 0.85 (16%) sys 4.46 ( 3%) wall
tree operand scan : 2.73 ( 2%) usr 1.35 (25%) sys 4.03 ( 3%) wall
dominator optimization: 6.37 ( 5%) usr 0.23 ( 4%) sys 6.58 ( 5%) wall
tree SRA : 0.31 ( 0%) usr 0.00 ( 0%) sys 0.36 ( 0%) wall
tree CCP : 0.27 ( 0%) usr 0.01 ( 0%) sys 0.32 ( 0%) wall
tree split crit edges : 0.12 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall
tree PRE : 1.42 ( 1%) usr 0.03 ( 1%) sys 2.01 ( 1%) wall
tree remove redundant PHIs: 1.00 ( 1%) usr 0.01 ( 0%) sys 1.05 ( 1%) wall
tree linearize phis : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
tree forward propagate: 0.31 ( 0%) usr 0.00 ( 0%) sys 0.36 ( 0%) wall
tree conservative DCE : 1.02 ( 1%) usr 0.00 ( 0%) sys 1.23 ( 1%) wall
tree aggressive DCE : 0.32 ( 0%) usr 0.00 ( 0%) sys 0.29 ( 0%) wall
tree DSE : 0.40 ( 0%) usr 0.00 ( 0%) sys 0.46 ( 0%) wall
PHI merge : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
tree record loop bounds: 0.27 ( 0%) usr 0.00 ( 0%) sys 0.33 ( 0%) wall
loop invariant motion : 0.60 ( 0%) usr 0.00 ( 0%) sys 0.56 ( 0%) wall
tree canonical iv creation: 0.22 ( 0%) usr 0.00 ( 0%) sys 0.23 ( 0%) wall
complete unrolling : 0.65 ( 1%) usr 0.02 ( 0%) sys 0.50 ( 0%) wall
tree iv optimization : 1.38 ( 1%) usr 0.04 ( 1%) sys 1.50 ( 1%) wall
tree loop init : 0.54 ( 0%) usr 0.00 ( 0%) sys 0.54 ( 0%) wall
tree loop fini : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
tree copy headers : 0.67 ( 1%) usr 0.03 ( 1%) sys 0.58 ( 0%) wall
tree SSA to normal : 1.03 ( 1%) usr 0.01 ( 0%) sys 0.98 ( 1%) wall
tree rename SSA copies: 0.39 ( 0%) usr 0.00 ( 0%) sys 0.37 ( 0%) wall
dominance frontiers : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.13 ( 0%) wall
control dependences : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall
expand : 5.19 ( 4%) usr 0.05 ( 1%) sys 5.27 ( 4%) wall
varconst : 0.23 ( 0%) usr 0.01 ( 0%) sys 0.26 ( 0%) wall
jump : 0.15 ( 0%) usr 0.00 ( 0%) sys 0.10 ( 0%) wall
CSE : 3.71 ( 3%) usr 0.01 ( 0%) sys 3.82 ( 3%) wall
loop analysis : 0.60 ( 0%) usr 0.00 ( 0%) sys 0.69 ( 1%) wall
global CSE : 0.11 ( 0%) usr 0.01 ( 0%) sys 0.07 ( 0%) wall
CPROP 1 : 0.31 ( 0%) usr 0.00 ( 0%) sys 0.29 ( 0%) wall
PRE : 0.85 ( 1%) usr 0.00 ( 0%) sys 0.75 ( 1%) wall
CPROP 2 : 0.32 ( 0%) usr 0.00 ( 0%) sys 0.36 ( 0%) wall
bypass jumps : 0.31 ( 0%) usr 0.01 ( 0%) sys 0.31 ( 0%) wall
CSE 2 : 1.97 ( 2%) usr 0.00 ( 0%) sys 2.07 ( 2%) wall
branch prediction : 0.83 ( 1%) usr 0.01 ( 0%) sys 0.77 ( 1%) wall
flow analysis : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall
combiner : 1.96 ( 2%) usr 0.00 ( 0%) sys 2.02 ( 1%) wall
if-conversion : 0.29 ( 0%) usr 0.00 ( 0%) sys 0.20 ( 0%) wall
regmove : 0.27 ( 0%) usr 0.00 ( 0%) sys 0.37 ( 0%) wall
local alloc : 1.23 ( 1%) usr 0.02 ( 0%) sys 1.07 ( 1%) wall
global alloc : 3.28 ( 3%) usr 0.00 ( 0%) sys 3.19 ( 2%) wall
reload CSE regs : 1.60 ( 1%) usr 0.00 ( 0%) sys 1.64 ( 1%) wall
flow 2 : 0.16 ( 0%) usr 0.01 ( 0%) sys 0.20 ( 0%) wall
if-conversion 2 : 0.06 ( 0%) usr 0.01 ( 0%) sys 0.14 ( 0%) wall
peephole 2 : 0.16 ( 0%) usr 0.00 ( 0%) sys 0.11 ( 0%) wall
rename registers : 0.44 ( 0%) usr 0.00 ( 0%) sys 0.34 ( 0%) wall
machine dep reorg : 0.32 ( 0%) usr 0.00 ( 0%) sys 0.41 ( 0%) wall
reorder blocks : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.31 ( 0%) wall
shorten branches : 0.35 ( 0%) usr 0.01 ( 0%) sys 0.35 ( 0%) wall
reg stack : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
final : 0.49 ( 0%) usr 0.01 ( 0%) sys 0.50 ( 0%) wall
rest of compilation : 0.32 ( 0%) usr 0.02 ( 0%) sys 0.40 ( 0%) wall
TOTAL : 129.54 5.37 135.98
Peak memory usage is 468694 kB (4.0.2 20050919) vs. 532350 kB (4.1.0 20050916).
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23955