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 30536-6f6fcf9613) Lines: 1335 1641 81.4 % Date: 2025-11-05 09:21:39 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	4246
fplll_heuristic	4246
gc_lll	4835
lllgram	9089
truncexpo	12139
ZC_to_RC	15952
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44560
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	188352
realsqrdotproduct	198160
setG_heuristic	206374
dpe_negz	244442
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	289747
mulshift	318943
dpe_addmuluz	342913
absrsmall2	402705
dpe_submuluz	412454
rotateG	443711
ZM_is_knapsack	606649
ZM_flatter_rank	624501
fplll_flatter	625462
ZM_flatter	626515
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	698128
lll_trivial	771731
dpe_muluz	799915
get_gramschmidt	1098376
realdotproduct	1186355
ZM_is_lower	1204561
lll	1243327
drop	1346061
potential	1346061
sizered	1346061
flat	1346062
affii_or_copy_gc	1390597
dpe_abssmall	1390603
submulshift	1507251
fplll_dpe	1603181
dpe_addz	1943189
vectail_inplace	2090339
fplll_fast	2103857
lll_finish	2164567
dbldotsquare	2480934
gramschmidt_dynprec	2692121
affdbldpe	3206357
cget_dpemat	3206369
mpabscmp	4093888
addmuliu2n	4104486
submuliu2n	4196910
ZM_is_upper	4233992
addmulziu	4580878
Babai_dpe	4654304
GS_extraprec	4725111
condition_bound	4725112
ZM2_lll_norms	4843829
gsisinv	5192736
dpe_cmpmul	5262500
dpe_cmp	5262508
lllfp	5368331
spread	5850306
submulziu	5923751
ZM_lll_norms	7133018
nbits2prec64	7487187
cget_dblmat	8415397
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10796352
rotateG_fast	11546797
update_alpha	11990690
cget_dpevec	13293254
dpe_divz	14075556
dpe_abscmp	14516036
setG2_fast	17028645
addzi	17784096
subzi	18525581
u64toi	19900941
affidpe	20750327
setG_fast	22657905
set_line	24928511
affdpe	25731832
Babai_fast	30202996
rotate	31934910
dblrotate	34640363
cget_dblvec	34983320
dpe_normalize	48109769
dpe_submulz	51703489
dpe_subz	53734746
dpe_mulz	56965847
dpe_normalize0	108563710
dbldotproduct	118227595
itodbl_exp	162560229

Generated by: LCOV version 1.16