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: 2025-10-18 09:22:31 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654200
Babai_fast	30199084
Babai_heuristic	288770
GS_extraprec	4724774
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843628
ZM_flatter	626489
ZM_flatter_rank	624475
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606417
ZM_is_lower	1204538
ZM_is_upper	4233681
ZM_lll_norms	7132593
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4107607
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580765
addmulzu2n	271563
addzi	17783762
affdbldpe	3206345
affdpe	25731294
affidpe	20749712
affii_or_copy_gc	1390579
cget_dblmat	8414439
cget_dblvec	34977997
cget_dpemat	3206346
cget_dpevec	13293019
condition_bound	4724774
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118219242
dbldotsquare	2480687
dblrotate	34634924
do_SWAPgen	196
dpeM_diagonal_shallow	20286
dpe_abscmp	14515577
dpe_abssmall	1390600
dpe_addmuluz	342912
dpe_addz	1943189
dpe_cmp	5262401
dpe_cmpmul	5262394
dpe_divz	14075096
dpe_muluz	799916
dpe_mulz	56963901
dpe_negz	244418
dpe_normalize	48107919
dpe_normalize0	108559464
dpe_submuluz	412454
dpe_submulz	51701661
dpe_subz	53732822
dperotate	652462
dpetor	94267
drop	1345913
flat	1345913
flattergram_i	2967
fplll	0
fplll_dpe	1603169
fplll_fast	2103614
fplll_flatter	625436
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44559
get_gramschmidt	1098357
gramschmidt_dynprec	2691823
gramschmidt_upper	1336
gsisinv	5192401
incrementalGSgen	168
itodbl_exp	162587582
kerint	42
kerint0	70
lll	1243326
lll_finish	2164309
lll_trivial	771729
lllall	36699
lllallgen	168
lllfp	5367882
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093003
mulshift	318942
nbits2prec64	7486495
pari_rint	10794108
potential	1345913
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31927262
rotateG	443280
rotateG_fast	11544967
setG2_fast	17025851
setG2_heuristic	187610
setG_fast	22654176
setG_heuristic	205626
set_line	24924872
sizered	1345913
spread	5849745
submuliu2n	4201223
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923606
submulzu2n	262549
subzi	18525247
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11988413
vectail_inplace	2090085

Generated by: LCOV version 1.16