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 30530-11e908049b) Lines: 1335 1641 81.4 % Date: 2025-10-13 09:22:58 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	4244
fplll_heuristic	4244
gc_lll	4833
lllgram	9089
truncexpo	12138
ZC_to_RC	15945
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44560
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244437
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342912
absrsmall2	401466
dpe_submuluz	412453
rotateG	443280
ZM_is_knapsack	606517
ZM_flatter_rank	624481
fplll_flatter	625442
ZM_flatter	626495
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771735
dpe_muluz	799916
get_gramschmidt	1098371
realdotproduct	1183370
ZM_is_lower	1204552
lll	1243328
flat	1345972
drop	1345974
potential	1345975
sizered	1345975
affii_or_copy_gc	1390585
dpe_abssmall	1390605
submulshift	1507243
fplll_dpe	1603188
dpe_addz	1943186
vectail_inplace	2090207
fplll_fast	2103676
lll_finish	2164434
dbldotsquare	2480987
gramschmidt_dynprec	2691945
cget_dpemat	3206367
affdbldpe	3206371
mpabscmp	4093106
addmuliu2n	4104920
submuliu2n	4199582
ZM_is_upper	4233816
addmulziu	4580848
Babai_dpe	4654236
GS_extraprec	4724911
condition_bound	4724911
ZM2_lll_norms	4843658
gsisinv	5192545
dpe_cmpmul	5262448
dpe_cmp	5262458
lllfp	5368076
spread	5849983
submulziu	5923677
ZM_lll_norms	7132708
nbits2prec64	7486747
cget_dblmat	8414892
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794958
rotateG_fast	11544234
update_alpha	11987699
cget_dpevec	13293542
dpe_divz	14075025
dpe_abscmp	14515507
setG2_fast	17024375
addzi	17783933
subzi	18525369
u64toi	19900941
affidpe	20749974
setG_fast	22652747
set_line	24923168
affdpe	25731324
Babai_fast	30196681
rotate	31925085
dblrotate	34632670
cget_dblvec	34979443
dpe_normalize	48106587
dpe_submulz	51700385
dpe_subz	53731624
dpe_mulz	56962694
dpe_normalize0	108556769
dbldotproduct	118201925
itodbl_exp	162520277

Generated by: LCOV version 1.16