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 30288-703288f808) Lines: 1335 1641 81.4 % Date: 2025-05-19 09:23:07 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
RgM_flop	0
dbg_flatter	0
dbg_flattergram	0
fplll	0
matkerint0	28
lllgramkerim	35
lllkerim	35
kerint	42
lllgen	42
lllgramgen	42
lllgramkerimgen	42
lllkerimgen	42
qflllgram	63
kerint0	70
incrementalGSgen	168
lllallgen	168
lllgramallgen	168
lllint	183
REDgen	196
do_SWAPgen	196
qflllgram0	245
qflll0	301
pslg	504
ZM_flattergram	961
ZM_flattergram_rank	961
gramschmidt_upper	1336
RgM_Cholesky_dynprec	2967
flattergram_i	2967
ZM_to_RM	4144
fplll_heuristic	4144
gc_lll	4733
lllgram	9089
truncexpo	12138
ZC_to_RC	15745
dpeM_diagonal_shallow	20168
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44313
RgM_is_square_mat	45828
dpetor	93746
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244188
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317357
dpe_addmuluz	342689
absrsmall2	401359
dpe_submuluz	411954
rotateG	442783
ZM_is_knapsack	605875
ZM_flatter_rank	616324
fplll_flatter	617285
ZM_flatter	618338
dperotate	651468
addmuliu642n	667843
u64toineg	667843
submuliu642n	683910
absrsmall	696359
lll_trivial	770467
dpe_muluz	799192
get_gramschmidt	1082343
lll	1174814
ZM_is_lower	1182142
realdotproduct	1182991
drop	1335705
flat	1335706
potential	1335706
sizered	1335708
affii_or_copy_gc	1388076
dpe_abssmall	1388087
submulshift	1499977
fplll_dpe	1567630
dpe_addz	1942238
vectail_inplace	2054416
fplll_fast	2068114
lll_finish	2128503
dbldotsquare	2439879
gramschmidt_dynprec	2671414
cget_dpemat	3135224
affdbldpe	3135257
mpabscmp	4063748
addmuliu2n	4083533
submuliu2n	4174264
ZM_is_upper	4178029
addmulziu	4577390
Babai_dpe	4585444
GS_extraprec	4689144
condition_bound	4689144
ZM2_lll_norms	4701085
gsisinv	5148921
dpe_cmpmul	5193605
dpe_cmp	5193609
lllfp	5268626
spread	5805464
submulziu	5920066
ZM_lll_norms	6954293
nbits2prec64	7414407
cget_dblmat	8272443
addmuliu64_inplace	9532764
submuliu64_inplace	9585296
pari_rint	10708446
rotateG_fast	11462207
update_alpha	11905083
cget_dpevec	13039751
dpe_divz	13955164
dpe_abscmp	14395793
setG2_fast	16890694
addzi	17776495
subzi	18518068
u64toi	19801970
affidpe	20520282
setG_fast	22444797
set_line	24680800
affdpe	25565387
Babai_fast	29994286
rotate	31718351
dblrotate	34386515
cget_dblvec	34474638
dpe_normalize	47894245
dpe_submulz	51516166
dpe_subz	53546316
dpe_mulz	56709682
dpe_normalize0	108011328
dbldotproduct	117552860
itodbl_exp	161603163

Generated by: LCOV version 1.16