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 30532-0c728fd268) Lines: 1335 1641 81.4 % Date: 2025-10-24 09:22:31 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	94269
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244427
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342912
absrsmall2	401466
dpe_submuluz	412454
rotateG	443280
ZM_is_knapsack	606474
ZM_flatter_rank	624466
fplll_flatter	625427
ZM_flatter	626480
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771731
dpe_muluz	799917
get_gramschmidt	1098344
realdotproduct	1183370
ZM_is_lower	1204525
lll	1243327
flat	1345876
potential	1345877
drop	1345878
sizered	1345879
affii_or_copy_gc	1390596
dpe_abssmall	1390605
submulshift	1507243
fplll_dpe	1603156
dpe_addz	1943187
vectail_inplace	2090126
fplll_fast	2103655
lll_finish	2164350
dbldotsquare	2480731
gramschmidt_dynprec	2691754
affdbldpe	3206306
cget_dpemat	3206317
mpabscmp	4092826
addmuliu2n	4109739
submuliu2n	4205107
ZM_is_upper	4233603
addmulziu	4580860
Babai_dpe	4654162
GS_extraprec	4724657
condition_bound	4724657
ZM2_lll_norms	4843459
gsisinv	5192266
dpe_cmpmul	5262371
dpe_cmp	5262378
lllfp	5367786
spread	5849672
submulziu	5923712
ZM_lll_norms	7132434
nbits2prec64	7486315
cget_dblmat	8414606
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794094
rotateG_fast	11544946
update_alpha	11988424
cget_dpevec	13292885
dpe_divz	14075018
dpe_abscmp	14515529
setG2_fast	17025556
addzi	17784046
subzi	18525470
u64toi	19900941
affidpe	20749631
setG_fast	22653595
set_line	24923945
affdpe	25731096
Babai_fast	30198363
rotate	31927213
dblrotate	34634753
cget_dblvec	34977961
dpe_normalize	48107906
dpe_submulz	51701549
dpe_subz	53732771
dpe_mulz	56963743
dpe_normalize0	108559499
dbldotproduct	118214312
itodbl_exp	162535298

Generated by: LCOV version 1.16