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 30571-c0dfe82732) Lines: 1336 1642 81.4 % Date: 2025-12-05 09:21:30 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656383
Babai_fast	30207062
Babai_heuristic	289747
GS_extraprec	4728411
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4848105
ZM_flatter	626963
ZM_flatter_rank	624949
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606799
ZM_is_lower	1205229
ZM_is_upper	4237398
ZM_lll_norms	7138201
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4106743
addmuliu642n	671548
addmuliu64_inplace	9582880
addmulziu	4580815
addmulzu2n	271563
addzi	17783727
affdbldpe	3207806
affdpe	25735986
affidpe	20757458
affii_or_copy_gc	1390588
cget_dblmat	8419042
cget_dblvec	34998508
cget_dpemat	3207807
cget_dpevec	13300076
condition_bound	4728411
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118241029
dbldotsquare	2482078
dblrotate	34645939
do_SWAPgen	196
dpeM_diagonal_shallow	20293
dpe_abscmp	14520122
dpe_abssmall	1390599
dpe_addmuluz	342913
dpe_addz	1943186
dpe_cmp	5264564
dpe_cmpmul	5264562
dpe_divz	14079660
dpe_muluz	799918
dpe_mulz	56974324
dpe_negz	244443
dpe_normalize	48117483
dpe_normalize0	108583912
dpe_submuluz	412454
dpe_submulz	51709908
dpe_subz	53741083
dperotate	652462
dpetor	94281
drop	1347407
flat	1347410
flattergram_i	2967
fplll	0
fplll_dpe	1603906
fplll_fast	2104766
fplll_flatter	625910
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44560
get_gramschmidt	1099064
gramschmidt_dynprec	2694819
gramschmidt_upper	1336
gsisinv	5196266
incrementalGSgen	168
itodbl_exp	162606178
kerint	42
kerint0	70
lll	1243391
lll_finish	2165467
lll_trivial	771749
lllall	36699
lllallgen	168
lllfp	5372475
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097876
mulshift	318943
nbits2prec64	7494235
pari_rint	10798743
potential	1347408
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31940400
rotateG	443711
rotateG_fast	11548668
setG2_fast	17031291
setG2_heuristic	188352
setG_fast	22662990
setG_heuristic	206374
set_line	24934415
sizered	1347410
spread	5853989
submuliu2n	4200875
submuliu642n	687471
submuliu64_inplace	9633716
submulshift	1507251
submulziu	5923641
submulzu2n	262549
subzi	18525346
truncexpo	12139
u64toi	19904067
u64toineg	671548
update_alpha	11992575
vectail_inplace	2091217

Generated by: LCOV version 1.16