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 30590-f14e077362) Lines: 1336 1642 81.4 % Date: 2025-12-31 09:21:49 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4655004
Babai_fast	30148328
Babai_heuristic	288770
GS_extraprec	4727602
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847435
ZM_flatter	626835
ZM_flatter_rank	624821
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606294
ZM_is_lower	1205090
ZM_is_upper	4236288
ZM_lll_norms	7136411
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4087836
addmuliu642n	668454
addmuliu64_inplace	9572959
addmulziu	4580757
addmulzu2n	271563
addzi	17783150
affdbldpe	3206752
affdpe	25731344
affidpe	20751994
affii_or_copy_gc	1390420
cget_dblmat	8414919
cget_dblvec	34981790
cget_dpemat	3206759
cget_dpevec	13295249
condition_bound	4727602
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118050041
dbldotsquare	2480783
dblrotate	34563950
do_SWAPgen	196
dpeM_diagonal_shallow	20146
dpe_abscmp	14516808
dpe_abssmall	1390428
dpe_addmuluz	342912
dpe_addz	1943127
dpe_cmp	5263345
dpe_cmpmul	5263341
dpe_divz	14076367
dpe_muluz	799874
dpe_mulz	56966639
dpe_negz	244391
dpe_normalize	48111091
dpe_normalize0	108568124
dpe_submuluz	412411
dpe_submulz	51703404
dpe_subz	53734519
dperotate	652350
dpetor	93800
drop	1347059
flat	1347062
flattergram_i	2967
fplll	0
fplll_dpe	1603379
fplll_fast	2103731
fplll_flatter	625782
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44539
get_gramschmidt	1098818
gramschmidt_dynprec	2694123
gramschmidt_upper	1336
gsisinv	5195347
incrementalGSgen	168
itodbl_exp	162379573
kerint	42
kerint0	70
lll	1243309
lll_finish	2164345
lll_trivial	771683
lllall	36699
lllallgen	168
lllfp	5371220
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4096453
mulshift	317717
nbits2prec64	7492518
pari_rint	10773976
potential	1347061
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31881947
rotateG	443224
rotateG_fast	11521341
setG2_fast	16990337
setG2_heuristic	187610
setG_fast	22618410
setG_heuristic	205626
set_line	24889359
sizered	1347062
spread	5852536
submuliu2n	4178847
submuliu642n	684645
submuliu64_inplace	9623916
submulshift	1501323
submulziu	5923326
submulzu2n	262549
subzi	18524789
truncexpo	12138
u64toi	19881520
u64toineg	668454
update_alpha	11964623
vectail_inplace	2090218

Generated by: LCOV version 1.16