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
Babai_dpe	4654236
Babai_fast	30196681
Babai_heuristic	288770
GS_extraprec	4724911
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843658
ZM_flatter	626495
ZM_flatter_rank	624481
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606517
ZM_is_lower	1204552
ZM_is_upper	4233816
ZM_lll_norms	7132708
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104920
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580848
addmulzu2n	271563
addzi	17783933
affdbldpe	3206371
affdpe	25731324
affidpe	20749974
affii_or_copy_gc	1390585
cget_dblmat	8414892
cget_dblvec	34979443
cget_dpemat	3206367
cget_dpevec	13293542
condition_bound	4724911
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118201925
dbldotsquare	2480987
dblrotate	34632670
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515507
dpe_abssmall	1390605
dpe_addmuluz	342912
dpe_addz	1943186
dpe_cmp	5262458
dpe_cmpmul	5262448
dpe_divz	14075025
dpe_muluz	799916
dpe_mulz	56962694
dpe_negz	244437
dpe_normalize	48106587
dpe_normalize0	108556769
dpe_submuluz	412453
dpe_submulz	51700385
dpe_subz	53731624
dperotate	652462
dpetor	94271
drop	1345974
flat	1345972
flattergram_i	2967
fplll	0
fplll_dpe	1603188
fplll_fast	2103676
fplll_flatter	625442
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1098371
gramschmidt_dynprec	2691945
gramschmidt_upper	1336
gsisinv	5192545
incrementalGSgen	168
itodbl_exp	162520277
kerint	42
kerint0	70
lll	1243328
lll_finish	2164434
lll_trivial	771735
lllall	36699
lllallgen	168
lllfp	5368076
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093106
mulshift	318942
nbits2prec64	7486747
pari_rint	10794958
potential	1345975
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31925085
rotateG	443280
rotateG_fast	11544234
setG2_fast	17024375
setG2_heuristic	187610
setG_fast	22652747
setG_heuristic	205626
set_line	24923168
sizered	1345975
spread	5849983
submuliu2n	4199582
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923677
submulzu2n	262549
subzi	18525369
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11987699
vectail_inplace	2090207

Generated by: LCOV version 1.16