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 30271-60da3cd182) Lines: 1335 1641 81.4 % Date: 2025-05-11 09:20:26 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4585376
Babai_fast	29985978
Babai_heuristic	288670
GS_extraprec	4688962
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15745
ZM2_lll_norms	4701037
ZM_flatter	618318
ZM_flatter_rank	616304
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	605695
ZM_is_lower	1182151
ZM_is_upper	4177872
ZM_lll_norms	6954030
ZM_to_RM	4144
absrsmall	696359
absrsmall2	401359
addmuliu2n	4083449
addmuliu642n	667843
addmuliu64_inplace	9532776
addmulziu	4577384
addmulzu2n	271563
addzi	17776207
affdbldpe	3135297
affdpe	25564532
affidpe	20519507
affii_or_copy_gc	1388080
cget_dblmat	8271812
cget_dblvec	34469151
cget_dpemat	3135293
cget_dpevec	13039714
condition_bound	4688962
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	117523361
dbldotsquare	2439726
dblrotate	34377205
do_SWAPgen	196
dpeM_diagonal_shallow	20168
dpe_abscmp	14395074
dpe_abssmall	1388090
dpe_addmuluz	342689
dpe_addz	1942239
dpe_cmp	5193527
dpe_cmpmul	5193529
dpe_divz	13954403
dpe_muluz	799197
dpe_mulz	56705483
dpe_negz	244185
dpe_normalize	47890486
dpe_normalize0	108002776
dpe_submuluz	411957
dpe_submulz	51512064
dpe_subz	53542283
dperotate	651468
dpetor	93746
drop	1335621
flat	1335619
flattergram_i	2967
fplll	0
fplll_dpe	1567649
fplll_fast	2067957
fplll_flatter	617265
fplll_heuristic	4144
gc_lll	4733
get_gaussred	44315
get_gramschmidt	1082354
gramschmidt_dynprec	2671237
gramschmidt_upper	1336
gsisinv	5148763
incrementalGSgen	168
itodbl_exp	161559276
kerint	42
kerint0	70
lll	1174815
lll_finish	2128350
lll_trivial	770475
lllall	36699
lllallgen	168
lllfp	5268363
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4062895
mulshift	317357
nbits2prec64	7414037
pari_rint	10706625
potential	1335622
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1182991
realsqrdotproduct	197241
rotate	31709044
rotateG	442783
rotateG_fast	11459091
setG2_fast	16885632
setG2_heuristic	187538
setG_fast	22438599
setG_heuristic	205419
set_line	24673396
sizered	1335622
spread	5805135
submuliu2n	4176483
submuliu642n	683910
submuliu64_inplace	9585296
submulshift	1499977
submulziu	5920136
submulzu2n	262549
subzi	18517843
truncexpo	12138
u64toi	19801982
u64toineg	667843
update_alpha	11901961
vectail_inplace	2054264

Generated by: LCOV version 1.16