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: 2025-06-07 09:19:48 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	44322
RgM_is_square_mat	45828
dpetor	93718
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244172
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317352
dpe_addmuluz	342689
absrsmall2	401359
dpe_submuluz	411957
rotateG	442790
ZM_is_knapsack	605756
ZM_flatter_rank	616296
fplll_flatter	617257
ZM_flatter	618310
dperotate	651482
addmuliu642n	667795
u64toineg	667795
submuliu642n	683874
absrsmall	696359
lll_trivial	770468
dpe_muluz	799196
get_gramschmidt	1082379
lll	1174814
ZM_is_lower	1182184
realdotproduct	1182991
drop	1335582
flat	1335582
potential	1335584
sizered	1335584
affii_or_copy_gc	1388090
dpe_abssmall	1388097
submulshift	1499893
fplll_dpe	1567701
dpe_addz	1942232
vectail_inplace	2054363
fplll_fast	2068016
lll_finish	2128444
dbldotsquare	2439641
gramschmidt_dynprec	2671164
affdbldpe	3135401
cget_dpemat	3135405
mpabscmp	4063105
addmuliu2n	4085296
ZM_is_upper	4177832
submuliu2n	4177889
addmulziu	4577372
Babai_dpe	4585554
GS_extraprec	4688811
condition_bound	4688812
ZM2_lll_norms	4700866
gsisinv	5148643
dpe_cmpmul	5193684
dpe_cmp	5193689
lllfp	5268247
spread	5805078
submulziu	5920025
ZM_lll_norms	6953918
nbits2prec64	7413900
cget_dblmat	8272050
addmuliu64_inplace	9532506
submuliu64_inplace	9584977
pari_rint	10706467
rotateG_fast	11460824
update_alpha	11903716
cget_dpevec	13039924
dpe_divz	13955181
dpe_abscmp	14395857
setG2_fast	16887777
addzi	17776164
subzi	18517723
u64toi	19801357
affidpe	20520291
setG_fast	22441231
set_line	24676263
affdpe	25565766
Babai_fast	29989924
rotate	31714288
dblrotate	34382425
cget_dblvec	34471537
dpe_normalize	47893349
dpe_submulz	51515350
dpe_subz	53545539
dpe_mulz	56708906
dpe_normalize0	108009276
dbldotproduct	117542831
itodbl_exp	161600247

Generated by: LCOV version 1.16