On 1/15/21 12:44 AM, Richard Biener wrote:
On Thu, Jan 14, 2021 at 8:13 PM Martin Sebor via Gcc-patches
<[email protected]> wrote:
One aspect of PR 98465 - Bogus warning stringop-overread for std::string
is the inconsistency between -g and -g0 which turns out to be due to
GCC eliminating apparently unused scope blocks from inlined functions
that aren't explicitly declared inline and artificial. PR 98664 tracks
just this part of PR 98465.
To resolve just the PR 98664 subset the attached change has
the tree-ssa-live.c pass preserve these blocks for all inlined
functions, not just artificial ones. Besides avoiding the interaction
between -g and warnings it also seems to improve the inlining context
by including more inlined call sites. This can be seen in the adjusted
tests. (Its effect on PR 98465 is that the false positive is issued
consistently, regardless of -g. Avoiding the false positive is my
next step.)
Jakub, you raised a concern yesterday in PR 98465 c#13 about the memory
footprint of this change. Can you please comment on whether it's in
line with what you were suggesting?
{
tree ao = BLOCK_ABSTRACT_ORIGIN (block);
- if (TREE_CODE (ao) == FUNCTION_DECL)
- loc = BLOCK_SOURCE_LOCATION (block);
- else if (TREE_CODE (ao) != BLOCK)
- break;
+ if (TREE_CODE (ao) == FUNCTION_DECL)
+ loc = BLOCK_SOURCE_LOCATION (block);
+ else if (TREE_CODE (ao) != BLOCK)
+ break;
you are replacing tabs with spaces?
@@ -558,16 +558,13 @@ remove_unused_scope_block_p (tree scope, bool
in_ctor_dtor_block)
else if (!flag_auto_profile && debug_info_level == DINFO_LEVEL_NONE
&& !optinfo_wants_inlining_info_p ())
{
- /* Even for -g0 don't prune outer scopes from artificial
- functions, otherwise diagnostics using tree_nonartificial_location
- will not be emitted properly. */
+ /* Even for -g0 don't prune outer scopes from inlined functions,
+ otherwise late diagnostics from such functions will not be
+ emitted or suppressed properly. */
if (inlined_function_outer_scope_p (scope))
{
tree ao = BLOCK_ORIGIN (scope);
- if (ao
- && TREE_CODE (ao) == FUNCTION_DECL
- && DECL_DECLARED_INLINE_P (ao)
- && lookup_attribute ("artificial", DECL_ATTRIBUTES (ao)))
+ if (ao && TREE_CODE (ao) == FUNCTION_DECL)
unused = false;
}
}
so which inlined_function_outer_scope_p are you _not_ marking now?
BLOCK_ORIGIN is never NULL and all inlined scopes should have
an abstract origin - I believe always a FUNCTIN_DECL. Which means
you could have simplified it further?
Quite possibly. I could find no documentation for these macros so
I tried to keep my changes conservative. I did put together some
notes to document what I saw the macros evaluate to in my testing
(below). If/when it's close to accurate I'd like to add them to
tree.h and to the internals manual.
And yes, the main reason for the code above is memory use for
C++ with lots of inlining. I suggest to try the patch on tramp3d
for example (there's about 10 inline instances per emitted
assembly op).
This one:
https://github.com/llvm-mirror/test-suite/tree/master/MultiSource/Benchmarks/tramp3d-v4
?
With the patch, 69,022 more blocks with distinct numbers are kept
than without it. I see some small differences in -fmem-report
and -ftime-report output:
Total: 286 -> 288M 210 -> 211M 3993 -> 4019k
I'm not really sure what to look at so I attach the two reports
for you to judge for yourself.
I also attach an updated patch with the slight simplification you
suggested.
Martin
PS Here are my notes on the macros and the two related functions:
BLOCK: Denotes a lexical scope. Contains BLOCK_VARS of variables
declared in it, BLOCK_SUBBLOCKS of scopes nested in it, and
BLOCK_CHAIN pointing to the next BLOCK. Its BLOCK_SUPERCONTEXT
point to the BLOCK of the enclosing scope. May have
a BLOCK_ABSTRACT_ORIGIN and a BLOCK_SOURCE_LOCATION.
BLOCK_SUPERCONTEXT: The scope of the enclosing block, or FUNCTION_DECL
for the "outermost" function scope. Inlined functions are chained by
this so that given expression E and its TREE_BLOCK(E) B,
BLOCK_SUPERCONTEXT(B) is the scope (BLOCK) in which E has been made
or into which E has been inlined. In the latter case,
BLOCK_ORIGIN(B) evaluates either to the enclosing BLOCK or to
the enclosing function DECL. It's never null.
BLOCK_ABSTRACT_ORIGIN(B) is the FUNCTION_DECL of the function into
which it has been inlined, or null if B is not inlined.
BLOCK_ABSTRACT_ORIGIN: A BLOCK, or FUNCTION_DECL of the function
into which a block has been inlined. In a BLOCK immediately enclosing
an inlined leaf expression points to the outermost BLOCK into which it
has been inlined (thus bypassing all intermediate BLOCK_SUPERCONTEXTs).
BLOCK_FRAGMENT_ORIGIN: ???
BLOCK_FRAGMENT_CHAIN: ???
bool inlined_function_outer_scope_p(BLOCK) [tree.h]
Returns true if a BLOCK has a source location.
True for all but the innermost (no SUBBLOCKs?) and outermost blocks
into which an expression has been inlined. (Is this always true?)
tree block_ultimate_origin(BLOCK) [tree.c]
Returns BLOCK_ABSTRACT_ORIGIN(BLOCK), AO, after asserting that
(DECL_P(AO) && DECL_ORIGIN(AO) == AO) || BLOCK_ORIGIN(AO) == AO).
$ /build/gcc-master/gcc/xg++ -B /build/gcc-master/gcc -nostdinc++ -I
/build/gcc-master/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I /build/gcc-master/x86_64-pc-linux-gnu/libstdc++-v3/include -I
/src/gcc/master/libstdc++-v3/libsupc++ -I
/src/gcc/master/libstdc++-v3/include/backward -I
/src/gcc/master/libstdc++-v3/testsuite/util -L
/build/gcc-master/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -O2 -c
-fdump-tree-cfg=tramp3d-v4.keep_blocks.cfg /src/tramp3d-v4.cpp -fmem-report
-ftime-report
################################################################################
# Final #
################################################################################
Number of expanded macros: 18928
Average number of tokens per macro expansion: 7
Line Table allocations during the compilation process
Number of ordinary maps used: 915
Ordinary map used size: 21k
Number of ordinary maps allocated: 1365
Ordinary maps allocated size: 31k
Number of macro maps used: 16k
Macro maps used size: 525k
Macro maps locations size: 1124k
Macro maps size: 1650k
Duplicated maps locations size: 378k
Total allocated maps size: 3204k
Total used maps size: 1671k
Ad-hoc table size: 12M
Ad-hoc table entries used: 472k
optimized_ranges: 1171k
unoptimized_ranges: 134k
Memory still allocated at the end of the compilation process
Size Allocated Used Overhead
8 116k 95k 3480
16 4120k 2271k 88k
32 23M 11M 418k
64 10M 8427k 166k
256 30M 25M 423k
512 1500k 1166k 20k
1024 3856k 1708k 52k
2048 5040k 4986k 68k
4096 148k 148k 2072
8192 48k 48k 336
16384 64k 64k 224
32768 128k 128k 224
65536 384k 384k 336
131072 128k 128k 56
262144 768k 768k 168
524288 512k 512k 56
1048576 2048k 2048k 112
2097152 2048k 2048k 56
16777216 16M 16M 56
24 11M 5294k 208k
40 25M 17M 413k
48 14M 6606k 236k
56 4812k 1825k 75k
72 3276k 775k 44k
80 596k 217k 8344
88 364k 177k 5096
96 11M 6110k 154k
112 3492k 2075k 47k
120 6172k 4542k 84k
152 16M 15M 237k
128 30M 26M 430k
144 6484k 1881k 88k
168 42M 40M 601k
184 3348k 2045k 45k
104 1176k 1036k 16k
272 3536k 904k 48k
280 164k 103k 2296
Total 286M 210M 3993k
String pool
entries: 79454
identifiers: 34933 (43.97%)
slots: 131072
deleted: 36676
GGC bytes: 2620k
table size: 1024k
coll/search: 0.8217
ins/search: 0.1222
avg. entry: 33.77 bytes (+/- 71.45)
longest entry: 496
(No per-node statistics)
Type hash: size 131071, 67199 elements, 1.112287 collisions
DECL_DEBUG_EXPR hash: size 1021, 0 elements, 0.856842 collisions
DECL_VALUE_EXPR hash: size 1021, 30 elements, 0.146046 collisions
decl_specializations: size 131071, 50624 elements, 1.386344 collisions
type_specializations: size 32749, 23184 elements, 2.504205 collisions
No GIMPLE statistics
No RTX statistics
--------------------------------------------------------------------------------------------------------------------------------------------
Heap vectors sizeof(T) Leak
Peak Times Leak items Peak items
--------------------------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------------------------------------------------
Heap vectors sizeof(T) Leak
Peak Times Leak items Peak items
--------------------------------------------------------------------------------------------------------------------------------------------
Total 0
0 0
--------------------------------------------------------------------------------------------------------------------------------------------
Alias oracle query stats:
refs_may_alias_p: 2798174 disambiguations, 3068078 queries
ref_maybe_used_by_call_p: 23818 disambiguations, 2836845 queries
call_may_clobber_ref_p: 2754 disambiguations, 2764 queries
nonoverlapping_component_refs_p: 0 disambiguations, 3493 queries
nonoverlapping_refs_since_match_p: 376 disambiguations, 9008 must overlaps,
9415 queries
aliasing_component_refs_p: 807 disambiguations, 30842 queries
TBAA oracle: 1041789 disambiguations 1976625 queries
189831 are in alias set 0
513994 queries asked about the same object
0 queries asked about the same alias set
0 access volatile
230715 are dependent in the DAG
296 are aritificially in conflict with void *
Modref stats:
modref use: 537 disambiguations, 6371 queries
modref clobber: 37429 disambiguations, 352194 queries
119124 tbaa queries (0.338234 per modref query)
21518 base compares (0.061097 per modref query)
PTA query stats:
pt_solution_includes: 559296 disambiguations, 744735 queries
pt_solutions_intersect: 154078 disambiguations, 422490 queries
Time variable usr sys wall
GGC
phase setup : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
1554k ( 0%)
phase parsing : 4.56 ( 4%) 0.60 ( 21%) 5.16 ( 5%)
213M ( 20%)
phase lang. deferred : 4.29 ( 4%) 0.29 ( 10%) 4.59 ( 4%)
189M ( 17%)
phase opt and generate : 97.18 ( 91%) 2.00 ( 69%) 99.38 ( 91%)
687M ( 63%)
phase finalize : 0.27 ( 0%) 0.01 ( 0%) 0.28 ( 0%)
0 ( 0%)
|name lookup : 0.88 ( 1%) 0.08 ( 3%) 0.76 ( 1%)
13M ( 1%)
|overload resolution : 2.36 ( 2%) 0.23 ( 8%) 2.42 ( 2%)
110M ( 10%)
garbage collection : 3.26 ( 3%) 0.01 ( 0%) 3.27 ( 3%)
0 ( 0%)
dump files : 0.29 ( 0%) 0.02 ( 1%) 0.49 ( 0%)
2945k ( 0%)
callgraph construction : 1.30 ( 1%) 0.14 ( 5%) 1.43 ( 1%)
37M ( 3%)
callgraph optimization : 0.73 ( 1%) 0.03 ( 1%) 0.83 ( 1%)
154k ( 0%)
callgraph functions expansion : 67.29 ( 63%) 0.69 ( 24%) 68.12 ( 62%)
362M ( 33%)
callgraph ipa passes : 26.35 ( 25%) 0.98 ( 34%) 27.39 ( 25%)
226M ( 21%)
ipa function summary : 0.23 ( 0%) 0.00 ( 0%) 0.23 ( 0%)
4663k ( 0%)
ipa dead code removal : 0.08 ( 0%) 0.01 ( 0%) 0.08 ( 0%)
56 ( 0%)
ipa devirtualization : 0.01 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
4944 ( 0%)
ipa cp : 0.55 ( 1%) 0.01 ( 0%) 0.52 ( 0%)
4862k ( 0%)
ipa inlining heuristics : 0.70 ( 1%) 0.02 ( 1%) 0.83 ( 1%)
22M ( 2%)
ipa function splitting : 0.19 ( 0%) 0.01 ( 0%) 0.18 ( 0%)
705k ( 0%)
ipa comdats : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
ipa reference : 0.02 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
ipa profile : 0.02 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
ipa pure const : 0.14 ( 0%) 0.01 ( 0%) 0.22 ( 0%)
437k ( 0%)
ipa icf : 0.16 ( 0%) 0.00 ( 0%) 0.16 ( 0%)
44k ( 0%)
ipa SRA : 0.24 ( 0%) 0.01 ( 0%) 0.22 ( 0%)
6229k ( 1%)
ipa free lang data : 0.03 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
ipa free inline summary : 0.04 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
0 ( 0%)
ipa modref : 0.11 ( 0%) 0.00 ( 0%) 0.11 ( 0%)
1858k ( 0%)
cfg construction : 0.06 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
1187k ( 0%)
cfg cleanup : 0.45 ( 0%) 0.01 ( 0%) 0.35 ( 0%)
1464k ( 0%)
CFG verifier : 4.15 ( 4%) 0.18 ( 6%) 4.37 ( 4%)
0 ( 0%)
trivially dead code : 0.10 ( 0%) 0.00 ( 0%) 0.09 ( 0%)
0 ( 0%)
df scan insns : 0.29 ( 0%) 0.00 ( 0%) 0.23 ( 0%)
43k ( 0%)
df reaching defs : 0.32 ( 0%) 0.00 ( 0%) 0.38 ( 0%)
0 ( 0%)
df live regs : 1.02 ( 1%) 0.00 ( 0%) 0.96 ( 1%)
0 ( 0%)
df live&initialized regs : 0.35 ( 0%) 0.00 ( 0%) 0.28 ( 0%)
0 ( 0%)
df must-initialized regs : 0.05 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
df use-def / def-use chains : 0.15 ( 0%) 0.00 ( 0%) 0.20 ( 0%)
0 ( 0%)
df reg dead/unused notes : 0.43 ( 0%) 0.00 ( 0%) 0.41 ( 0%)
4205k ( 0%)
register information : 0.08 ( 0%) 0.00 ( 0%) 0.12 ( 0%)
0 ( 0%)
alias analysis : 0.29 ( 0%) 0.00 ( 0%) 0.37 ( 0%)
11M ( 1%)
alias stmt walking : 4.25 ( 4%) 0.04 ( 1%) 4.36 ( 4%)
1366k ( 0%)
register scan : 0.03 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
117k ( 0%)
rebuild jump labels : 0.03 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
0 ( 0%)
preprocessing : 0.32 ( 0%) 0.10 ( 3%) 0.39 ( 0%)
5611k ( 1%)
parser (global) : 0.60 ( 1%) 0.23 ( 8%) 0.76 ( 1%)
57M ( 5%)
parser struct body : 0.73 ( 1%) 0.03 ( 1%) 0.69 ( 1%)
37M ( 3%)
parser enumerator list : 0.03 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
357k ( 0%)
parser function body : 0.39 ( 0%) 0.02 ( 1%) 0.37 ( 0%)
9857k ( 1%)
parser inl. func. body : 0.24 ( 0%) 0.01 ( 0%) 0.25 ( 0%)
5970k ( 1%)
parser inl. meth. body : 0.43 ( 0%) 0.11 ( 4%) 0.71 ( 1%)
25M ( 2%)
template instantiation : 4.92 ( 5%) 0.38 ( 13%) 5.35 ( 5%)
261M ( 24%)
constant expression evaluation : 0.09 ( 0%) 0.01 ( 0%) 0.14 ( 0%)
1563k ( 0%)
early inlining heuristics : 0.33 ( 0%) 0.01 ( 0%) 0.35 ( 0%)
10M ( 1%)
inline parameters : 0.53 ( 0%) 0.05 ( 2%) 0.71 ( 1%)
15M ( 1%)
integration : 2.03 ( 2%) 0.07 ( 2%) 2.14 ( 2%)
126M ( 12%)
tree gimplify : 0.53 ( 0%) 0.07 ( 2%) 0.51 ( 0%)
38M ( 4%)
tree eh : 0.15 ( 0%) 0.00 ( 0%) 0.22 ( 0%)
10M ( 1%)
tree CFG construction : 0.15 ( 0%) 0.01 ( 0%) 0.18 ( 0%)
17M ( 2%)
tree CFG cleanup : 1.05 ( 1%) 0.03 ( 1%) 1.32 ( 1%)
625k ( 0%)
tree tail merge : 0.05 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
1772k ( 0%)
tree VRP : 2.20 ( 2%) 0.02 ( 1%) 2.26 ( 2%)
14M ( 1%)
tree Early VRP : 1.53 ( 1%) 0.06 ( 2%) 1.46 ( 1%)
12M ( 1%)
tree copy propagation : 0.31 ( 0%) 0.00 ( 0%) 0.26 ( 0%)
188k ( 0%)
tree PTA : 1.90 ( 2%) 0.05 ( 2%) 2.16 ( 2%)
5309k ( 0%)
tree PHI insertion : 0.03 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
1826k ( 0%)
tree SSA rewrite : 0.46 ( 0%) 0.01 ( 0%) 0.45 ( 0%)
15M ( 1%)
tree SSA other : 0.12 ( 0%) 0.02 ( 1%) 0.16 ( 0%)
1597k ( 0%)
tree SSA incremental : 0.42 ( 0%) 0.03 ( 1%) 0.43 ( 0%)
3434k ( 0%)
tree operand scan : 0.82 ( 1%) 0.05 ( 2%) 0.77 ( 1%)
43M ( 4%)
dominator optimization : 2.53 ( 2%) 0.04 ( 1%) 2.60 ( 2%)
12M ( 1%)
backwards jump threading : 0.13 ( 0%) 0.00 ( 0%) 0.14 ( 0%)
347k ( 0%)
tree SRA : 0.26 ( 0%) 0.00 ( 0%) 0.25 ( 0%)
1084k ( 0%)
isolate eroneous paths : 0.03 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
1584 ( 0%)
tree CCP : 1.43 ( 1%) 0.03 ( 1%) 1.74 ( 2%)
4451k ( 0%)
tree split crit edges : 0.04 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
1578k ( 0%)
tree reassociation : 0.08 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
18k ( 0%)
tree PRE : 2.07 ( 2%) 0.03 ( 1%) 1.87 ( 2%)
11M ( 1%)
tree FRE : 2.57 ( 2%) 0.02 ( 1%) 2.82 ( 3%)
6890k ( 1%)
tree code sinking : 0.06 ( 0%) 0.00 ( 0%) 0.09 ( 0%)
1307k ( 0%)
tree linearize phis : 0.17 ( 0%) 0.00 ( 0%) 0.20 ( 0%)
993k ( 0%)
tree backward propagate : 0.01 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
0 ( 0%)
tree forward propagate : 0.93 ( 1%) 0.04 ( 1%) 0.80 ( 1%)
2244k ( 0%)
tree phiprop : 0.02 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
19k ( 0%)
tree conservative DCE : 0.24 ( 0%) 0.00 ( 0%) 0.23 ( 0%)
449k ( 0%)
tree aggressive DCE : 0.39 ( 0%) 0.00 ( 0%) 0.39 ( 0%)
12M ( 1%)
tree buildin call DCE : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
3504 ( 0%)
tree DSE : 1.16 ( 1%) 0.00 ( 0%) 1.08 ( 1%)
339k ( 0%)
PHI merge : 0.05 ( 0%) 0.00 ( 0%) 0.08 ( 0%)
128k ( 0%)
tree loop optimization : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
tree loop invariant motion : 0.32 ( 0%) 0.00 ( 0%) 0.25 ( 0%)
117k ( 0%)
tree canonical iv : 0.24 ( 0%) 0.00 ( 0%) 0.14 ( 0%)
2168k ( 0%)
scev constant prop : 0.03 ( 0%) 0.00 ( 0%) 0.09 ( 0%)
537k ( 0%)
complete unrolling : 1.56 ( 1%) 0.01 ( 0%) 1.32 ( 1%)
14M ( 1%)
tree loop distribution : 0.33 ( 0%) 0.00 ( 0%) 0.35 ( 0%)
3488k ( 0%)
tree iv optimization : 1.42 ( 1%) 0.01 ( 0%) 1.38 ( 1%)
19M ( 2%)
tree copy headers : 0.11 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
1438k ( 0%)
tree SSA uncprop : 0.05 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
0 ( 0%)
tree NRV optimization : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
1824 ( 0%)
tree SSA verifier : 11.24 ( 11%) 0.29 ( 10%) 12.00 ( 11%)
0 ( 0%)
tree STMT verifier : 17.17 ( 16%) 0.27 ( 9%) 16.90 ( 15%)
0 ( 0%)
tree switch conversion : 0.04 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
tree switch lowering : 0.04 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
gimple CSE sin/cos : 0.02 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
gimple widening/fma detection : 0.05 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
13k ( 0%)
tree strlen optimization : 0.63 ( 1%) 0.00 ( 0%) 0.55 ( 1%)
4021k ( 0%)
tree modref : 0.24 ( 0%) 0.00 ( 0%) 0.33 ( 0%)
5652k ( 1%)
callgraph verifier : 0.58 ( 1%) 0.02 ( 1%) 0.53 ( 0%)
0 ( 0%)
dominance frontiers : 0.00 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
0 ( 0%)
dominance computation : 1.19 ( 1%) 0.00 ( 0%) 1.36 ( 1%)
0 ( 0%)
control dependences : 0.02 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
0 ( 0%)
out of ssa : 0.11 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
60k ( 0%)
expand vars : 0.19 ( 0%) 0.00 ( 0%) 0.09 ( 0%)
3108k ( 0%)
expand : 0.59 ( 1%) 0.00 ( 0%) 0.68 ( 1%)
30M ( 3%)
post expand cleanups : 0.08 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
2280k ( 0%)
varconst : 0.03 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
16k ( 0%)
lower subreg : 0.00 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
21k ( 0%)
jump : 0.02 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
forward prop : 0.59 ( 1%) 0.00 ( 0%) 0.69 ( 1%)
284k ( 0%)
CSE : 0.53 ( 0%) 0.01 ( 0%) 0.59 ( 1%)
1772k ( 0%)
dead code elimination : 0.11 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
0 ( 0%)
dead store elim1 : 0.19 ( 0%) 0.00 ( 0%) 0.17 ( 0%)
2756k ( 0%)
dead store elim2 : 0.36 ( 0%) 0.00 ( 0%) 0.34 ( 0%)
3976k ( 0%)
loop analysis : 0.04 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
loop init : 1.85 ( 2%) 0.02 ( 1%) 1.81 ( 2%)
25M ( 2%)
loop invariant motion : 0.10 ( 0%) 0.00 ( 0%) 0.08 ( 0%)
145k ( 0%)
loop fini : 0.05 ( 0%) 0.01 ( 0%) 0.05 ( 0%)
14k ( 0%)
CPROP : 0.51 ( 0%) 0.01 ( 0%) 0.64 ( 1%)
4218k ( 0%)
PRE : 0.47 ( 0%) 0.00 ( 0%) 0.56 ( 1%)
1545k ( 0%)
CSE 2 : 0.25 ( 0%) 0.00 ( 0%) 0.38 ( 0%)
736k ( 0%)
branch prediction : 0.37 ( 0%) 0.03 ( 1%) 0.34 ( 0%)
3272k ( 0%)
combiner : 0.84 ( 1%) 0.01 ( 0%) 0.71 ( 1%)
7613k ( 1%)
if-conversion : 0.05 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
312k ( 0%)
integrated RA : 2.17 ( 2%) 0.03 ( 1%) 2.15 ( 2%)
44M ( 4%)
LRA non-specific : 0.54 ( 1%) 0.00 ( 0%) 0.54 ( 0%)
4028k ( 0%)
LRA virtuals elimination : 0.16 ( 0%) 0.01 ( 0%) 0.14 ( 0%)
2129k ( 0%)
LRA reload inheritance : 0.13 ( 0%) 0.00 ( 0%) 0.14 ( 0%)
391k ( 0%)
LRA create live ranges : 0.49 ( 0%) 0.00 ( 0%) 0.60 ( 1%)
417k ( 0%)
LRA hard reg assignment : 0.10 ( 0%) 0.00 ( 0%) 0.09 ( 0%)
0 ( 0%)
LRA rematerialization : 0.15 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
2128 ( 0%)
reload : 0.00 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
0 ( 0%)
reload CSE regs : 0.57 ( 1%) 0.00 ( 0%) 0.68 ( 1%)
4376k ( 0%)
ree : 0.04 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
48k ( 0%)
thread pro- & epilogue : 0.44 ( 0%) 0.01 ( 0%) 0.29 ( 0%)
2591k ( 0%)
if-conversion 2 : 0.02 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
11k ( 0%)
combine stack adjustments : 0.04 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
peephole 2 : 0.08 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
479k ( 0%)
hard reg cprop : 0.18 ( 0%) 0.01 ( 0%) 0.16 ( 0%)
36k ( 0%)
scheduling 2 : 1.49 ( 1%) 0.00 ( 0%) 1.37 ( 1%)
1902k ( 0%)
machine dep reorg : 0.08 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
0 ( 0%)
reorder blocks : 0.16 ( 0%) 0.00 ( 0%) 0.17 ( 0%)
1340k ( 0%)
shorten branches : 0.05 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
0 ( 0%)
final : 0.13 ( 0%) 0.01 ( 0%) 0.18 ( 0%)
6736k ( 1%)
variable output : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
196k ( 0%)
symout : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
tree if-combine : 0.00 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
17k ( 0%)
if to switch conversion : 0.04 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
0 ( 0%)
straight-line strength reduction : 0.12 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
56k ( 0%)
store merging : 0.38 ( 0%) 0.00 ( 0%) 0.29 ( 0%)
1107k ( 0%)
initialize rtl : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
12k ( 0%)
address lowering : 0.07 ( 0%) 0.01 ( 0%) 0.12 ( 0%)
1586k ( 0%)
early local passes : 0.02 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
0 ( 0%)
unaccounted optimizations : 0.00 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
rest of compilation : 0.82 ( 1%) 0.02 ( 1%) 0.94 ( 1%)
4036k ( 0%)
remove unused locals : 0.35 ( 0%) 0.01 ( 0%) 0.26 ( 0%)
30k ( 0%)
address taken : 0.22 ( 0%) 0.02 ( 1%) 0.26 ( 0%)
0 ( 0%)
verify loop closed : 0.02 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
0 ( 0%)
verify RTL sharing : 1.71 ( 2%) 0.04 ( 1%) 1.54 ( 1%)
0 ( 0%)
rebuild frequencies : 0.02 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
31k ( 0%)
repair loop structures : 0.17 ( 0%) 0.00 ( 0%) 0.19 ( 0%)
9456 ( 0%)
TOTAL : 106.30 2.90 109.42
1092M
Extra diagnostic checks enabled; compiler may run slowly.
Configure with --enable-checking=release to disable checks.
$ keep_blocks=1 /build/gcc-master/gcc/xg++ -B /build/gcc-master/gcc -nostdinc++
-I
/build/gcc-master/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I /build/gcc-master/x86_64-pc-linux-gnu/libstdc++-v3/include -I
/src/gcc/master/libstdc++-v3/libsupc++ -I
/src/gcc/master/libstdc++-v3/include/backward -I
/src/gcc/master/libstdc++-v3/testsuite/util -L
/build/gcc-master/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -O2 -c
-fdump-tree-cfg=tramp3d-v4.keep_blocks.cfg /src/tramp3d-v4.cpp -fmem-report
-ftime-report
################################################################################
# Final #
################################################################################
Number of expanded macros: 18928
Average number of tokens per macro expansion: 7
Line Table allocations during the compilation process
Number of ordinary maps used: 915
Ordinary map used size: 21k
Number of ordinary maps allocated: 1365
Ordinary maps allocated size: 31k
Number of macro maps used: 16k
Macro maps used size: 525k
Macro maps locations size: 1124k
Macro maps size: 1650k
Duplicated maps locations size: 378k
Total allocated maps size: 3204k
Total used maps size: 1671k
Ad-hoc table size: 12M
Ad-hoc table entries used: 473k
optimized_ranges: 1171k
unoptimized_ranges: 134k
Memory still allocated at the end of the compilation process
Size Allocated Used Overhead
8 116k 95k 3480
16 4056k 2271k 87k
32 23M 11M 417k
64 10M 8427k 167k
256 30M 25M 424k
512 1504k 1166k 20k
1024 3852k 1708k 52k
2048 5040k 4986k 68k
4096 148k 148k 2072
8192 48k 48k 336
16384 64k 64k 224
32768 128k 128k 224
65536 320k 320k 280
131072 128k 128k 56
262144 1024k 1024k 224
524288 512k 512k 56
1048576 2048k 2048k 112
2097152 2048k 2048k 56
16777216 16M 16M 56
24 11M 5294k 209k
40 26M 17M 416k
48 14M 6606k 236k
56 4828k 1825k 75k
72 3288k 775k 44k
80 600k 217k 8400
88 360k 177k 5040
96 12M 7050k 174k
112 3492k 2075k 47k
120 6172k 4542k 84k
152 17M 15M 238k
128 30M 26M 429k
144 6516k 1881k 89k
168 43M 40M 602k
184 3340k 2045k 45k
104 1164k 1036k 15k
272 3520k 904k 48k
280 172k 103k 2408
Total 288M 211M 4019k
String pool
entries: 79453
identifiers: 34933 (43.97%)
slots: 131072
deleted: 36683
GGC bytes: 2620k
table size: 1024k
coll/search: 0.8234
ins/search: 0.1222
avg. entry: 33.77 bytes (+/- 71.45)
longest entry: 496
(No per-node statistics)
Type hash: size 131071, 67199 elements, 1.112279 collisions
DECL_DEBUG_EXPR hash: size 1021, 0 elements, 0.859474 collisions
DECL_VALUE_EXPR hash: size 1021, 30 elements, 0.148597 collisions
decl_specializations: size 131071, 50624 elements, 1.386344 collisions
type_specializations: size 32749, 23184 elements, 2.504205 collisions
No GIMPLE statistics
No RTX statistics
--------------------------------------------------------------------------------------------------------------------------------------------
Heap vectors sizeof(T) Leak
Peak Times Leak items Peak items
--------------------------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------------------------------------------------
Heap vectors sizeof(T) Leak
Peak Times Leak items Peak items
--------------------------------------------------------------------------------------------------------------------------------------------
Total 0
0 0
--------------------------------------------------------------------------------------------------------------------------------------------
Alias oracle query stats:
refs_may_alias_p: 2798174 disambiguations, 3068078 queries
ref_maybe_used_by_call_p: 23818 disambiguations, 2836845 queries
call_may_clobber_ref_p: 2754 disambiguations, 2764 queries
nonoverlapping_component_refs_p: 0 disambiguations, 3493 queries
nonoverlapping_refs_since_match_p: 376 disambiguations, 9008 must overlaps,
9415 queries
aliasing_component_refs_p: 807 disambiguations, 30842 queries
TBAA oracle: 1041789 disambiguations 1976625 queries
189831 are in alias set 0
513994 queries asked about the same object
0 queries asked about the same alias set
0 access volatile
230715 are dependent in the DAG
296 are aritificially in conflict with void *
Modref stats:
modref use: 537 disambiguations, 6371 queries
modref clobber: 37429 disambiguations, 352194 queries
119124 tbaa queries (0.338234 per modref query)
21518 base compares (0.061097 per modref query)
PTA query stats:
pt_solution_includes: 559296 disambiguations, 744735 queries
pt_solutions_intersect: 154078 disambiguations, 422490 queries
Time variable usr sys wall
GGC
phase setup : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
1554k ( 0%)
phase parsing : 4.52 ( 4%) 0.60 ( 21%) 5.12 ( 5%)
213M ( 19%)
phase lang. deferred : 4.33 ( 4%) 0.28 ( 10%) 4.63 ( 4%)
189M ( 17%)
phase opt and generate : 98.18 ( 91%) 2.00 ( 69%) 100.38 ( 91%)
692M ( 63%)
phase last asm : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
32k ( 0%)
phase finalize : 0.29 ( 0%) 0.01 ( 0%) 0.29 ( 0%)
0 ( 0%)
|name lookup : 0.73 ( 1%) 0.04 ( 1%) 0.68 ( 1%)
13M ( 1%)
|overload resolution : 2.29 ( 2%) 0.22 ( 8%) 2.39 ( 2%)
110M ( 10%)
garbage collection : 3.34 ( 3%) 0.02 ( 1%) 3.32 ( 3%)
0 ( 0%)
dump files : 0.50 ( 0%) 0.05 ( 2%) 0.43 ( 0%)
2945k ( 0%)
callgraph construction : 1.26 ( 1%) 0.11 ( 4%) 1.39 ( 1%)
37M ( 3%)
callgraph optimization : 0.80 ( 1%) 0.06 ( 2%) 0.81 ( 1%)
154k ( 0%)
callgraph functions expansion : 68.01 ( 63%) 0.68 ( 24%) 68.84 ( 62%)
365M ( 33%)
callgraph ipa passes : 26.57 ( 25%) 1.03 ( 36%) 27.65 ( 25%)
228M ( 21%)
ipa function summary : 0.26 ( 0%) 0.01 ( 0%) 0.21 ( 0%)
4663k ( 0%)
ipa dead code removal : 0.10 ( 0%) 0.00 ( 0%) 0.11 ( 0%)
56 ( 0%)
ipa inheritance graph : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
20k ( 0%)
ipa virtual call target : 0.00 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
3264 ( 0%)
ipa cp : 0.55 ( 1%) 0.00 ( 0%) 0.48 ( 0%)
4862k ( 0%)
ipa inlining heuristics : 0.80 ( 1%) 0.00 ( 0%) 0.81 ( 1%)
22M ( 2%)
ipa function splitting : 0.20 ( 0%) 0.01 ( 0%) 0.24 ( 0%)
724k ( 0%)
ipa comdats : 0.03 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
0 ( 0%)
ipa reference : 0.01 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
ipa profile : 0.02 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
ipa pure const : 0.23 ( 0%) 0.01 ( 0%) 0.14 ( 0%)
437k ( 0%)
ipa icf : 0.17 ( 0%) 0.00 ( 0%) 0.17 ( 0%)
44k ( 0%)
ipa SRA : 0.24 ( 0%) 0.00 ( 0%) 0.24 ( 0%)
6229k ( 1%)
ipa free lang data : 0.05 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
0 ( 0%)
ipa free inline summary : 0.03 ( 0%) 0.01 ( 0%) 0.03 ( 0%)
0 ( 0%)
ipa modref : 0.11 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
1858k ( 0%)
cfg construction : 0.03 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
1187k ( 0%)
cfg cleanup : 0.36 ( 0%) 0.00 ( 0%) 0.53 ( 0%)
1464k ( 0%)
CFG verifier : 3.90 ( 4%) 0.04 ( 1%) 4.71 ( 4%)
0 ( 0%)
trivially dead code : 0.12 ( 0%) 0.00 ( 0%) 0.16 ( 0%)
0 ( 0%)
df scan insns : 0.31 ( 0%) 0.02 ( 1%) 0.22 ( 0%)
43k ( 0%)
df reaching defs : 0.31 ( 0%) 0.00 ( 0%) 0.30 ( 0%)
0 ( 0%)
df live regs : 0.89 ( 1%) 0.01 ( 0%) 0.95 ( 1%)
0 ( 0%)
df live&initialized regs : 0.48 ( 0%) 0.00 ( 0%) 0.33 ( 0%)
0 ( 0%)
df must-initialized regs : 0.01 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
df use-def / def-use chains : 0.25 ( 0%) 0.00 ( 0%) 0.16 ( 0%)
0 ( 0%)
df reg dead/unused notes : 0.43 ( 0%) 0.00 ( 0%) 0.47 ( 0%)
4205k ( 0%)
register information : 0.15 ( 0%) 0.00 ( 0%) 0.12 ( 0%)
0 ( 0%)
alias analysis : 0.39 ( 0%) 0.01 ( 0%) 0.40 ( 0%)
11M ( 1%)
alias stmt walking : 4.37 ( 4%) 0.06 ( 2%) 4.22 ( 4%)
1366k ( 0%)
register scan : 0.05 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
373k ( 0%)
rebuild jump labels : 0.05 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
0 ( 0%)
preprocessing : 0.29 ( 0%) 0.14 ( 5%) 0.52 ( 0%)
5611k ( 0%)
parser (global) : 0.53 ( 0%) 0.13 ( 4%) 0.77 ( 1%)
57M ( 5%)
parser struct body : 0.76 ( 1%) 0.03 ( 1%) 0.84 ( 1%)
37M ( 3%)
parser enumerator list : 0.00 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
357k ( 0%)
parser function body : 0.35 ( 0%) 0.08 ( 3%) 0.30 ( 0%)
9857k ( 1%)
parser inl. func. body : 0.21 ( 0%) 0.02 ( 1%) 0.27 ( 0%)
5970k ( 1%)
parser inl. meth. body : 0.56 ( 1%) 0.05 ( 2%) 0.58 ( 1%)
25M ( 2%)
template instantiation : 4.89 ( 5%) 0.41 ( 14%) 5.22 ( 5%)
261M ( 24%)
constant expression evaluation : 0.12 ( 0%) 0.01 ( 0%) 0.13 ( 0%)
1563k ( 0%)
early inlining heuristics : 0.28 ( 0%) 0.00 ( 0%) 0.29 ( 0%)
10M ( 1%)
inline parameters : 0.55 ( 1%) 0.03 ( 1%) 0.70 ( 1%)
15M ( 1%)
integration : 1.70 ( 2%) 0.09 ( 3%) 2.05 ( 2%)
130M ( 12%)
tree gimplify : 0.63 ( 1%) 0.04 ( 1%) 0.64 ( 1%)
38M ( 4%)
tree eh : 0.27 ( 0%) 0.01 ( 0%) 0.11 ( 0%)
10M ( 1%)
tree CFG construction : 0.10 ( 0%) 0.02 ( 1%) 0.18 ( 0%)
17M ( 2%)
tree CFG cleanup : 1.23 ( 1%) 0.00 ( 0%) 1.46 ( 1%)
633k ( 0%)
tree tail merge : 0.17 ( 0%) 0.00 ( 0%) 0.12 ( 0%)
1772k ( 0%)
tree VRP : 2.34 ( 2%) 0.01 ( 0%) 2.53 ( 2%)
14M ( 1%)
tree Early VRP : 1.63 ( 2%) 0.08 ( 3%) 1.44 ( 1%)
12M ( 1%)
tree copy propagation : 0.39 ( 0%) 0.00 ( 0%) 0.34 ( 0%)
189k ( 0%)
tree PTA : 1.71 ( 2%) 0.06 ( 2%) 1.81 ( 2%)
5305k ( 0%)
tree PHI insertion : 0.04 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
1826k ( 0%)
tree SSA rewrite : 0.42 ( 0%) 0.02 ( 1%) 0.42 ( 0%)
15M ( 1%)
tree SSA other : 0.23 ( 0%) 0.00 ( 0%) 0.17 ( 0%)
1597k ( 0%)
tree SSA incremental : 0.50 ( 0%) 0.00 ( 0%) 0.54 ( 0%)
3429k ( 0%)
tree operand scan : 0.60 ( 1%) 0.01 ( 0%) 0.65 ( 1%)
43M ( 4%)
dominator optimization : 2.56 ( 2%) 0.04 ( 1%) 2.72 ( 2%)
12M ( 1%)
backwards jump threading : 0.15 ( 0%) 0.00 ( 0%) 0.21 ( 0%)
347k ( 0%)
tree SRA : 0.24 ( 0%) 0.00 ( 0%) 0.14 ( 0%)
1084k ( 0%)
isolate eroneous paths : 0.03 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
1584 ( 0%)
tree CCP : 1.54 ( 1%) 0.02 ( 1%) 1.29 ( 1%)
4451k ( 0%)
tree split crit edges : 0.03 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
1578k ( 0%)
tree reassociation : 0.08 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
18k ( 0%)
tree PRE : 1.87 ( 2%) 0.04 ( 1%) 2.22 ( 2%)
11M ( 1%)
tree FRE : 2.53 ( 2%) 0.02 ( 1%) 2.66 ( 2%)
6890k ( 1%)
tree code sinking : 0.13 ( 0%) 0.00 ( 0%) 0.13 ( 0%)
1307k ( 0%)
tree linearize phis : 0.18 ( 0%) 0.00 ( 0%) 0.11 ( 0%)
993k ( 0%)
tree backward propagate : 0.02 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
tree forward propagate : 0.76 ( 1%) 0.01 ( 0%) 0.90 ( 1%)
2245k ( 0%)
tree phiprop : 0.04 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
19k ( 0%)
tree conservative DCE : 0.29 ( 0%) 0.01 ( 0%) 0.38 ( 0%)
449k ( 0%)
tree aggressive DCE : 0.39 ( 0%) 0.01 ( 0%) 0.36 ( 0%)
12M ( 1%)
tree buildin call DCE : 0.01 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
3504 ( 0%)
tree DSE : 1.04 ( 1%) 0.00 ( 0%) 1.16 ( 1%)
339k ( 0%)
PHI merge : 0.06 ( 0%) 0.00 ( 0%) 0.11 ( 0%)
128k ( 0%)
tree loop optimization : 0.07 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
tree loop invariant motion : 0.32 ( 0%) 0.00 ( 0%) 0.33 ( 0%)
117k ( 0%)
tree canonical iv : 0.19 ( 0%) 0.00 ( 0%) 0.18 ( 0%)
2167k ( 0%)
scev constant prop : 0.10 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
537k ( 0%)
complete unrolling : 1.43 ( 1%) 0.02 ( 1%) 1.44 ( 1%)
14M ( 1%)
tree loop distribution : 0.38 ( 0%) 0.00 ( 0%) 0.35 ( 0%)
3488k ( 0%)
tree iv optimization : 1.36 ( 1%) 0.02 ( 1%) 1.36 ( 1%)
19M ( 2%)
tree copy headers : 0.09 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
1438k ( 0%)
tree SSA uncprop : 0.06 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
0 ( 0%)
tree NRV optimization : 0.00 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
1824 ( 0%)
tree SSA verifier : 11.82 ( 11%) 0.24 ( 8%) 12.05 ( 11%)
0 ( 0%)
tree STMT verifier : 17.14 ( 16%) 0.47 ( 16%) 16.96 ( 15%)
0 ( 0%)
tree switch conversion : 0.04 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
0 ( 0%)
tree switch lowering : 0.03 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
gimple CSE sin/cos : 0.01 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
0 ( 0%)
gimple widening/fma detection : 0.03 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
13k ( 0%)
tree strlen optimization : 0.60 ( 1%) 0.01 ( 0%) 0.61 ( 1%)
4021k ( 0%)
tree modref : 0.35 ( 0%) 0.02 ( 1%) 0.27 ( 0%)
5652k ( 1%)
callgraph verifier : 0.61 ( 1%) 0.03 ( 1%) 0.59 ( 1%)
0 ( 0%)
dominance frontiers : 0.01 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
0 ( 0%)
dominance computation : 1.20 ( 1%) 0.09 ( 3%) 1.41 ( 1%)
0 ( 0%)
control dependences : 0.03 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
0 ( 0%)
out of ssa : 0.12 ( 0%) 0.00 ( 0%) 0.12 ( 0%)
59k ( 0%)
expand vars : 0.08 ( 0%) 0.00 ( 0%) 0.12 ( 0%)
2916k ( 0%)
expand : 0.66 ( 1%) 0.01 ( 0%) 0.64 ( 1%)
30M ( 3%)
post expand cleanups : 0.02 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
2280k ( 0%)
varconst : 0.02 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
16k ( 0%)
lower subreg : 0.03 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
21k ( 0%)
jump : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
forward prop : 0.55 ( 1%) 0.00 ( 0%) 0.72 ( 1%)
284k ( 0%)
CSE : 0.46 ( 0%) 0.00 ( 0%) 0.45 ( 0%)
1772k ( 0%)
dead code elimination : 0.08 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
0 ( 0%)
dead store elim1 : 0.26 ( 0%) 0.00 ( 0%) 0.21 ( 0%)
2756k ( 0%)
dead store elim2 : 0.39 ( 0%) 0.00 ( 0%) 0.35 ( 0%)
3977k ( 0%)
loop analysis : 0.02 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
0 ( 0%)
loop init : 1.83 ( 2%) 0.04 ( 1%) 1.90 ( 2%)
25M ( 2%)
loop invariant motion : 0.07 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
145k ( 0%)
loop fini : 0.09 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
16k ( 0%)
CPROP : 0.67 ( 1%) 0.00 ( 0%) 0.50 ( 0%)
4218k ( 0%)
PRE : 0.56 ( 1%) 0.00 ( 0%) 0.54 ( 0%)
1545k ( 0%)
CSE 2 : 0.33 ( 0%) 0.00 ( 0%) 0.29 ( 0%)
736k ( 0%)
branch prediction : 0.36 ( 0%) 0.02 ( 1%) 0.37 ( 0%)
3272k ( 0%)
combiner : 0.68 ( 1%) 0.01 ( 0%) 0.85 ( 1%)
7613k ( 1%)
if-conversion : 0.08 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
312k ( 0%)
integrated RA : 2.03 ( 2%) 0.01 ( 0%) 2.05 ( 2%)
44M ( 4%)
LRA non-specific : 0.55 ( 1%) 0.00 ( 0%) 0.57 ( 1%)
4029k ( 0%)
LRA virtuals elimination : 0.21 ( 0%) 0.00 ( 0%) 0.16 ( 0%)
2129k ( 0%)
LRA reload inheritance : 0.09 ( 0%) 0.00 ( 0%) 0.09 ( 0%)
391k ( 0%)
LRA create live ranges : 0.53 ( 0%) 0.00 ( 0%) 0.53 ( 0%)
417k ( 0%)
LRA hard reg assignment : 0.06 ( 0%) 0.00 ( 0%) 0.16 ( 0%)
0 ( 0%)
LRA rematerialization : 0.06 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
2128 ( 0%)
reload : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
reload CSE regs : 0.69 ( 1%) 0.00 ( 0%) 0.59 ( 1%)
4376k ( 0%)
ree : 0.02 ( 0%) 0.01 ( 0%) 0.05 ( 0%)
47k ( 0%)
thread pro- & epilogue : 0.31 ( 0%) 0.00 ( 0%) 0.47 ( 0%)
2591k ( 0%)
if-conversion 2 : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
11k ( 0%)
combine stack adjustments : 0.05 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
peephole 2 : 0.05 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
479k ( 0%)
hard reg cprop : 0.23 ( 0%) 0.00 ( 0%) 0.17 ( 0%)
36k ( 0%)
scheduling 2 : 1.32 ( 1%) 0.02 ( 1%) 1.48 ( 1%)
1897k ( 0%)
machine dep reorg : 0.08 ( 0%) 0.00 ( 0%) 0.12 ( 0%)
0 ( 0%)
reorder blocks : 0.15 ( 0%) 0.00 ( 0%) 0.11 ( 0%)
1340k ( 0%)
shorten branches : 0.13 ( 0%) 0.01 ( 0%) 0.06 ( 0%)
0 ( 0%)
final : 0.19 ( 0%) 0.00 ( 0%) 0.22 ( 0%)
6736k ( 1%)
variable output : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
196k ( 0%)
symout : 0.02 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
tree if-combine : 0.01 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
17k ( 0%)
if to switch conversion : 0.07 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
0 ( 0%)
straight-line strength reduction : 0.11 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
56k ( 0%)
store merging : 0.38 ( 0%) 0.01 ( 0%) 0.26 ( 0%)
1107k ( 0%)
initialize rtl : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
12k ( 0%)
address lowering : 0.07 ( 0%) 0.00 ( 0%) 0.08 ( 0%)
1586k ( 0%)
early local passes : 0.04 ( 0%) 0.01 ( 0%) 0.05 ( 0%)
0 ( 0%)
unaccounted optimizations : 0.02 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
rest of compilation : 0.99 ( 1%) 0.01 ( 0%) 1.00 ( 1%)
4036k ( 0%)
unaccounted late compilation : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
remove unused locals : 0.21 ( 0%) 0.01 ( 0%) 0.31 ( 0%)
30k ( 0%)
address taken : 0.20 ( 0%) 0.00 ( 0%) 0.25 ( 0%)
0 ( 0%)
verify loop closed : 0.07 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
0 ( 0%)
verify RTL sharing : 1.63 ( 2%) 0.01 ( 0%) 1.62 ( 1%)
0 ( 0%)
rebuild frequencies : 0.07 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
31k ( 0%)
repair loop structures : 0.14 ( 0%) 0.00 ( 0%) 0.15 ( 0%)
9456 ( 0%)
TOTAL : 107.32 2.89 110.44
1097M
Extra diagnostic checks enabled; compiler may run slowly.
Configure with --enable-checking=release to disable checks.
tmp$
PR middle-end/98664 - inconsistent -Wfree-nonheap-object for inlined calls to system headers
gcc/ChangeLog:
PR middle-end/98664
* tree-ssa-live.c (remove_unused_scope_block_p): Keep scopes for
all functions, even if they're not declared artificial or inline.
* tree.c (tree_inlined_location): Use macro expansion location
only if scope traversal fails to expose one.
gcc/testsuite/ChangeLog:
PR middle-end/98664
* gcc.dg/Wvla-larger-than-4.c: Adjust expected output.
* gcc.dg/plugin/diagnostic-test-inlining-3.c: Same.
* g++.dg/warn/Wfree-nonheap-object-5.C: New test.
* gcc.dg/Wfree-nonheap-object-4.c: New test.
diff --git a/gcc/testsuite/g++.dg/warn/Wfree-nonheap-object-5.C b/gcc/testsuite/g++.dg/warn/Wfree-nonheap-object-5.C
new file mode 100644
index 00000000000..742dba0cf58
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wfree-nonheap-object-5.C
@@ -0,0 +1,129 @@
+/* PR middle-end/98664 - inconsistent --Wfree-nonheap-object for inlined
+ calls to system headers
+ { dg-do compile }
+ { dg-options "-O2 -Wall" } */
+
+# 7 "Wfree-nonheap-object-5.h" 1 3
+
+struct A0
+{
+ void *p;
+
+ void f0 (void *q) { p = q; }
+ void g0 (void) {
+ __builtin_free (p); // { dg-warning "\\\[-Wfree-nonheap-object" }
+ }
+};
+
+struct A1
+{
+ void *p;
+
+ void f0 (void *q) { p = q; }
+ void f1 (void *q) { f0 (q); }
+
+ void g0 (void) {
+ __builtin_free (p); // { dg-warning "\\\[-Wfree-nonheap-object" }
+ }
+ void g1 (void) { g0 (); }
+};
+
+struct A2
+{
+ void *p;
+
+ void f0 (void *q) { p = q; }
+ void f1 (void *q) { f0 (q); }
+ void f2 (void *q) { f1 (q); }
+
+ void g0 (void) {
+ __builtin_free (p); // { dg-warning "\\\[-Wfree-nonheap-object" }
+ }
+ void g1 (void) { g0 (); }
+ void g2 (void) { g1 (); }
+};
+
+# 47 "Wfree-nonheap-object-5.C"
+
+#define NOIPA __attribute__ ((noipa))
+
+extern int array[];
+
+/* Verify the warning is issued even for calls in a system header inlined
+ into a function outside the header. */
+
+NOIPA void warn_g0 (struct A0 *p)
+{
+ int *q = array + 1;
+
+ p->f0 (q);
+ p->g0 ();
+}
+
+// { dg-message "inlined from 'void warn_g0\\(A0\\*\\)'" "" { target *-*-* } 0 }
+
+
+/* Also verify the warning can be suppressed. */
+
+NOIPA void nowarn_g0 (struct A0 *p)
+{
+ int *q = array + 2;
+
+ p->f0 (q);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfree-nonheap-object"
+ p->g0 ();
+#pragma GCC diagnostic pop
+}
+
+
+NOIPA void warn_g1 (struct A1 *p)
+{
+ int *q = array + 3;
+
+ p->f1 (q);
+ p->g1 ();
+}
+
+// { dg-message "inlined from 'void A1::g1\\(\\)'" "" { target *-*-* } 0 }
+// { dg-message "inlined from 'void warn_g1\\(A1\\*\\)'" "" { target *-*-* } 0 }
+
+
+NOIPA void nowarn_g1 (struct A2 *p)
+{
+ int *q = array + 4;
+
+ p->f1 (q);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfree-nonheap-object"
+ p->g1 ();
+#pragma GCC diagnostic pop
+}
+
+
+NOIPA void warn_g2 (struct A2 *p)
+{
+ int *q = array + 5;
+
+ p->f2 (q);
+ p->g2 ();
+}
+
+// { dg-message "inlined from 'void A2::g1\\(\\)'" "" { target *-*-* } 0 }
+// { dg-message "inlined from 'void A2::g2\\(\\)'" "" { target *-*-* } 0 }
+// { dg-message "inlined from 'void warn_g2\\(A2\\*\\)'" "" { target *-*-* } 0 }
+
+
+NOIPA void nowarn_g2 (struct A2 *p)
+{
+ int *q = array + 6;
+
+ p->f2 (q);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfree-nonheap-object"
+ p->g2 ();
+#pragma GCC diagnostic pop
+}
diff --git a/gcc/testsuite/gcc.dg/Wfree-nonheap-object-4.c b/gcc/testsuite/gcc.dg/Wfree-nonheap-object-4.c
new file mode 100644
index 00000000000..a7d921248c4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wfree-nonheap-object-4.c
@@ -0,0 +1,107 @@
+/* PR middle-end/98664 - inconsistent --Wfree-nonheap-object for inlined
+ calls to system headers
+ { dg-do compile }
+ { dg-options "-O2 -Wall" } */
+
+# 7 "Wfree-nonheap-object-4.h" 1 3
+
+struct A
+{
+ void *p;
+};
+
+void f0 (struct A *p, void *q) { p->p = q; }
+void f1 (struct A *p, void *q) { f0 (p, q); }
+void f2 (struct A *p, void *q) { f1 (p, q); }
+
+void g0 (struct A *p)
+{
+ __builtin_free (p->p); // { dg-warning "\\\[-Wfree-nonheap-object" }
+}
+
+void g1 (struct A *p) { g0 (p); }
+void g2 (struct A *p) { g1 (p); }
+
+# 26 "Wfree-nonheap-object-4.c"
+
+#define NOIPA __attribute__ ((noipa))
+
+extern int array[];
+
+/* Verify the warning is issued even for calls in a system header inlined
+ into a function outside the header. */
+
+NOIPA void warn_g0 (struct A *p)
+{
+ int *q = array + 1;
+
+ f0 (p, q);
+ g0 (p);
+}
+
+// { dg-message "inlined from 'warn_g0'" "" { target *-*-* } 0 }
+
+
+/* Also verify the warning can be suppressed. */
+
+NOIPA void nowarn_g0 (struct A *p)
+{
+ int *q = array + 2;
+
+ f0 (p, q);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfree-nonheap-object"
+ g0 (p);
+#pragma GCC diagnostic pop
+}
+
+
+NOIPA void warn_g1 (struct A *p)
+{
+ int *q = array + 3;
+
+ f1 (p, q);
+ g1 (p);
+}
+
+// { dg-message "inlined from 'g1'" "" { target *-*-* } 0 }
+// { dg-message "inlined from 'warn_g1'" "" { target *-*-* } 0 }
+
+
+NOIPA void nowarn_g1 (struct A *p)
+{
+ int *q = array + 4;
+
+ f1 (p, q);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfree-nonheap-object"
+ g1 (p);
+#pragma GCC diagnostic pop
+}
+
+
+NOIPA void warn_g2 (struct A *p)
+{
+ int *q = array + 5;
+
+ f2 (p, q);
+ g2 (p);
+}
+
+// { dg-message "inlined from 'g2'" "" { target *-*-* } 0 }
+// { dg-message "inlined from 'warn_g2'" "" { target *-*-* } 0 }
+
+
+NOIPA void nowarn_g2 (struct A *p)
+{
+ int *q = array + 6;
+
+ f2 (p, q);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfree-nonheap-object"
+ g2 (p);
+#pragma GCC diagnostic pop
+}
diff --git a/gcc/testsuite/gcc.dg/Wvla-larger-than-4.c b/gcc/testsuite/gcc.dg/Wvla-larger-than-4.c
index de99afbe56e..7d27829736f 100644
--- a/gcc/testsuite/gcc.dg/Wvla-larger-than-4.c
+++ b/gcc/testsuite/gcc.dg/Wvla-larger-than-4.c
@@ -17,14 +17,14 @@ static inline void inline_use_vla (unsigned n)
static inline void use_inlined_vla (unsigned n)
{
inline_use_vla (n); // this call is okay
- inline_use_vla (n + 1); // this one is not
+ inline_use_vla (n + 1); // this one is not (line 20)
}
void call_inline (void)
{
- use_inlined_vla (31);
+ use_inlined_vla (31); // line 25
}
/* Verify that the inlining context is included and that it points
to the correct line number in the inlined function:
- { dg-message "function 'inline_use_vla'..*inlined from 'call_inline' .*:20:" "" { target *-*-* } 0 } */
+ { dg-message "function 'inline_use_vla'.*inlined from 'use_inlined_vla'.*:20:.*inlined from 'call_inline' .*:25:" "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-3.c b/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-3.c
index e1a4fca2cb4..56c9546fb84 100644
--- a/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-3.c
+++ b/gcc/testsuite/gcc.dg/plugin/diagnostic-test-inlining-3.c
@@ -35,7 +35,8 @@ int main()
This test case captures this behavior. */
/* { dg-regexp "In function 'foo'," "" } */
-/* { dg-regexp " inlined from 'main' at .+/diagnostic-test-inlining-3.c:15:3:" "" } */
+/* { dg-regexp " inlined from 'bar' at .+/diagnostic-test-inlining-3.c:15:3," "" } */
+/* { dg-regexp " inlined from 'main' at .+/diagnostic-test-inlining-3.c:20:3:" "" } */
/* { dg-warning "3: message" "" { target *-*-* } 9 } */
/* { dg-begin-multiline-output "" }
__emit_warning ("message");
diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c
index 02a7a56f0f9..5f58bfb9168 100644
--- a/gcc/tree-ssa-live.c
+++ b/gcc/tree-ssa-live.c
@@ -555,19 +555,17 @@ remove_unused_scope_block_p (tree scope, bool in_ctor_dtor_block)
;
/* When not generating debug info we can eliminate info on unused
variables. */
- else if (!flag_auto_profile && debug_info_level == DINFO_LEVEL_NONE
+ else if (!flag_auto_profile
+ && debug_info_level == DINFO_LEVEL_NONE
&& !optinfo_wants_inlining_info_p ())
{
- /* Even for -g0 don't prune outer scopes from artificial
- functions, otherwise diagnostics using tree_nonartificial_location
- will not be emitted properly. */
+ /* Even for -g0 don't prune outer scopes from inlined functions,
+ otherwise late diagnostics from such functions will not be
+ emitted or suppressed properly. */
if (inlined_function_outer_scope_p (scope))
{
- tree ao = BLOCK_ORIGIN (scope);
- if (ao
- && TREE_CODE (ao) == FUNCTION_DECL
- && DECL_DECLARED_INLINE_P (ao)
- && lookup_attribute ("artificial", DECL_ATTRIBUTES (ao)))
+ tree orig = BLOCK_ORIGIN (scope);
+ if (TREE_CODE (orig) == FUNCTION_DECL)
unused = false;
}
}
diff --git a/gcc/tree.c b/gcc/tree.c
index a25c71f1152..061fe43aa31 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -12638,10 +12638,13 @@ tree_inlined_location (tree exp, bool system_header /* = true */)
}
if (loc == UNKNOWN_LOCATION)
- loc = EXPR_LOCATION (exp);
-
- if (system_header)
- return expansion_point_location_if_in_system_header (loc);
+ {
+ loc = EXPR_LOCATION (exp);
+ if (system_header)
+ /* Only consider macro expansion when the block traversal failed
+ to find a location. Otherwise it's not relevant. */
+ return expansion_point_location_if_in_system_header (loc);
+ }
return loc;
}
