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 30587-f85873d515) Lines: 1336 1642 81.4 % Date: 2025-12-28 09:21:53 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4655114
Babai_fast	30152333
Babai_heuristic	288770
GS_extraprec	4727969
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847507
ZM_flatter	626850
ZM_flatter_rank	624836
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606585
ZM_is_lower	1205099
ZM_is_upper	4236525
ZM_lll_norms	7136804
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4089278
addmuliu642n	668454
addmuliu64_inplace	9572959
addmulziu	4580812
addmulzu2n	271563
addzi	17783468
affdbldpe	3206799
affdpe	25731717
affidpe	20752782
affii_or_copy_gc	1390431
cget_dblmat	8416168
cget_dblvec	34987681
cget_dpemat	3206798
cget_dpevec	13296048
condition_bound	4727969
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118058233
dbldotsquare	2481277
dblrotate	34569344
do_SWAPgen	196
dpeM_diagonal_shallow	20147
dpe_abscmp	14517210
dpe_abssmall	1390434
dpe_addmuluz	342911
dpe_addz	1943126
dpe_cmp	5263460
dpe_cmpmul	5263459
dpe_divz	14076785
dpe_muluz	799874
dpe_mulz	56967745
dpe_negz	244392
dpe_normalize	48112205
dpe_normalize0	108570934
dpe_submuluz	412412
dpe_submulz	51704402
dpe_subz	53735534
dperotate	652350
dpetor	93799
drop	1347170
flat	1347172
flattergram_i	2967
fplll	0
fplll_dpe	1603399
fplll_fast	2104046
fplll_flatter	625797
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44539
get_gramschmidt	1098825
gramschmidt_dynprec	2694344
gramschmidt_upper	1336
gsisinv	5195713
incrementalGSgen	168
itodbl_exp	162370344
kerint	42
kerint0	70
lll	1243315
lll_finish	2164651
lll_trivial	771685
lllall	36699
lllallgen	168
lllfp	5371557
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097041
mulshift	317717
nbits2prec64	7493048
pari_rint	10776289
potential	1347172
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31887472
rotateG	443224
rotateG_fast	11523170
setG2_fast	16992789
setG2_heuristic	187610
setG_fast	22621613
setG_heuristic	205626
set_line	24892254
sizered	1347173
spread	5853198
submuliu2n	4181332
submuliu642n	684645
submuliu64_inplace	9623916
submulshift	1501323
submulziu	5923342
submulzu2n	262549
subzi	18525047
truncexpo	12138
u64toi	19881520
u64toineg	668454
update_alpha	11966473
vectail_inplace	2090524

Generated by: LCOV version 1.16