Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - lll.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30318-7d854b8994) Lines: 1335 1641 81.4 % Date: 2025-06-06 09:19:58 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4585641
Babai_fast	29992170
Babai_heuristic	288670
GS_extraprec	4689278
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15745
ZM2_lll_norms	4701222
ZM_flatter	618336
ZM_flatter_rank	616321
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	605877
ZM_is_lower	1182206
ZM_is_upper	4178134
ZM_lll_norms	6954389
ZM_to_RM	4144
absrsmall	696359
absrsmall2	401359
addmuliu2n	4082111
addmuliu642n	667795
addmuliu64_inplace	9532506
addmulziu	4577362
addmulzu2n	271563
addzi	17776267
affdbldpe	3135434
affdpe	25566219
affidpe	20520919
affii_or_copy_gc	1388096
cget_dblmat	8272606
cget_dblvec	34475575
cget_dpemat	3135421
cget_dpevec	13040309
condition_bound	4689278
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	117546621
dbldotsquare	2439901
dblrotate	34384803
do_SWAPgen	196
dpeM_diagonal_shallow	20168
dpe_abscmp	14396270
dpe_abssmall	1388106
dpe_addmuluz	342689
dpe_addz	1942239
dpe_cmp	5193793
dpe_cmpmul	5193789
dpe_divz	13955575
dpe_muluz	799197
dpe_mulz	56710622
dpe_negz	244189
dpe_normalize	47895012
dpe_normalize0	108013263
dpe_submuluz	411957
dpe_submulz	51516946
dpe_subz	53547175
dperotate	651482
dpetor	93718
drop	1335727
flat	1335727
flattergram_i	2967
fplll	0
fplll_dpe	1567720
fplll_fast	2068154
fplll_flatter	617282
fplll_heuristic	4144
gc_lll	4733
get_gaussred	44322
get_gramschmidt	1082397
gramschmidt_dynprec	2671452
gramschmidt_upper	1336
gsisinv	5149102
incrementalGSgen	168
itodbl_exp	161565498
kerint	42
kerint0	70
lll	1174814
lll_finish	2128573
lll_trivial	770467
lllall	36699
lllallgen	168
lllfp	5268673
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4063843
mulshift	317352
nbits2prec64	7414589
pari_rint	10707453
potential	1335727
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1182991
realsqrdotproduct	197241
rotate	31716753
rotateG	442790
rotateG_fast	11461620
setG2_fast	16889141
setG2_heuristic	187538
setG_fast	22443176
setG_heuristic	205419
set_line	24677922
sizered	1335727
spread	5805659
submuliu2n	4173073
submuliu642n	683874
submuliu64_inplace	9584977
submulshift	1499893
submulziu	5920173
submulzu2n	262549
subzi	18517969
truncexpo	12138
u64toi	19801357
u64toineg	667795
update_alpha	11904582
vectail_inplace	2054493

Generated by: LCOV version 1.16