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 30565-738e569de9) Lines: 1335 1641 81.4 % Date: 2025-11-30 09:23:42 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	244447
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412454
rotateG	443280
ZM_is_knapsack	606716
ZM_flatter_rank	624482
fplll_flatter	625443
ZM_flatter	626496
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771729
dpe_muluz	799918
get_gramschmidt	1098373
realdotproduct	1183370
ZM_is_lower	1204554
lll	1243328
drop	1345941
sizered	1345941
flat	1345942
potential	1345942
affii_or_copy_gc	1390578
dpe_abssmall	1390601
submulshift	1507243
fplll_dpe	1603186
dpe_addz	1943179
vectail_inplace	2090410
fplll_fast	2103926
lll_finish	2164636
dbldotsquare	2480851
gramschmidt_dynprec	2691882
affdbldpe	3206348
cget_dpemat	3206362
mpabscmp	4093376
addmuliu2n	4107182
submuliu2n	4201304
ZM_is_upper	4233757
addmulziu	4580822
Babai_dpe	4654294
GS_extraprec	4724802
condition_bound	4724802
ZM2_lll_norms	4843373
gsisinv	5192432
dpe_cmp	5262508
dpe_cmpmul	5262508
lllfp	5367978
spread	5850073
submulziu	5923666
ZM_lll_norms	7132625
nbits2prec64	7486703
cget_dblmat	8415679
addmuliu64_inplace	9581970
submuliu64_inplace	9632820
pari_rint	10796634
rotateG_fast	11547302
update_alpha	11990635
cget_dpevec	13292915
dpe_divz	14075483
dpe_abscmp	14515967
setG2_fast	17029015
addzi	17783701
subzi	18525118
u64toi	19902261
affidpe	20750138
setG_fast	22658007
set_line	24928637
affdpe	25731743
Babai_fast	30203716
rotate	31934150
dblrotate	34641730
cget_dblvec	34982580
dpe_normalize	48109171
dpe_submulz	51702928
dpe_subz	53734113
dpe_mulz	56965317
dpe_normalize0	108562565
dbldotproduct	118230886
itodbl_exp	162618901

Generated by: LCOV version 1.16