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 30316-0578a48613) Lines: 1335 1641 81.4 % Date: 2025-06-03 09:18:42 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4585520
Babai_fast	29992131
Babai_heuristic	288670
GS_extraprec	4688854
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15745
ZM2_lll_norms	4700699
ZM_flatter	618309
ZM_flatter_rank	616295
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	605902
ZM_is_lower	1182167
ZM_is_upper	4177809
ZM_lll_norms	6953888
ZM_to_RM	4144
absrsmall	696359
absrsmall2	401359
addmuliu2n	4082421
addmuliu642n	667795
addmuliu64_inplace	9532506
addmulziu	4577314
addmulzu2n	271563
addzi	17775886
affdbldpe	3135360
affdpe	25565636
affidpe	20520274
affii_or_copy_gc	1388069
cget_dblmat	8272573
cget_dblvec	34474765
cget_dpemat	3135367
cget_dpevec	13039713
condition_bound	4688854
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	117547985
dbldotsquare	2439742
dblrotate	34384733
do_SWAPgen	196
dpeM_diagonal_shallow	20168
dpe_abscmp	14396027
dpe_abssmall	1388098
dpe_addmuluz	342689
dpe_addz	1942238
dpe_cmp	5193682
dpe_cmpmul	5193682
dpe_divz	13955264
dpe_muluz	799193
dpe_mulz	56709505
dpe_negz	244156
dpe_normalize	47894323
dpe_normalize0	108011235
dpe_submuluz	411956
dpe_submulz	51515998
dpe_subz	53546197
dperotate	651482
dpetor	93718
drop	1335582
flat	1335582
flattergram_i	2967
fplll	0
fplll_dpe	1567682
fplll_fast	2068146
fplll_flatter	617256
fplll_heuristic	4144
gc_lll	4733
get_gaussred	44320
get_gramschmidt	1082361
gramschmidt_dynprec	2671161
gramschmidt_upper	1336
gsisinv	5148675
incrementalGSgen	168
itodbl_exp	161583290
kerint	42
kerint0	70
lll	1174816
lll_finish	2128574
lll_trivial	770470
lllall	36699
lllallgen	168
lllfp	5268236
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4063437
mulshift	317352
nbits2prec64	7413853
pari_rint	10707384
potential	1335582
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1182991
realsqrdotproduct	197241
rotate	31716650
rotateG	442790
rotateG_fast	11461603
setG2_fast	16889149
setG2_heuristic	187538
setG_fast	22443170
setG_heuristic	205419
set_line	24677857
sizered	1335582
spread	5805251
submuliu2n	4173631
submuliu642n	683874
submuliu64_inplace	9584977
submulshift	1499893
submulziu	5920091
submulzu2n	262549
subzi	18517651
truncexpo	12138
u64toi	19801357
u64toineg	667795
update_alpha	11904530
vectail_inplace	2054492

Generated by: LCOV version 1.16