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 30574-595e4ba651) Lines: 1336 1642 81.4 % Date: 2025-12-17 09:21:45 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656418
Babai_fast	30209996
Babai_heuristic	288770
GS_extraprec	4728610
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4848285
ZM_flatter	626974
ZM_flatter_rank	624960
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606783
ZM_is_lower	1205245
ZM_is_upper	4237548
ZM_lll_norms	7138406
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104345
addmuliu642n	671548
addmuliu64_inplace	9582880
addmulziu	4580794
addmulzu2n	271563
addzi	17783367
affdbldpe	3207828
affdpe	25735960
affidpe	20757527
affii_or_copy_gc	1390567
cget_dblmat	8418996
cget_dblvec	34999281
cget_dpemat	3207828
cget_dpevec	13300130
condition_bound	4728610
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118252148
dbldotsquare	2482057
dblrotate	34648543
do_SWAPgen	196
dpeM_diagonal_shallow	20294
dpe_abscmp	14520276
dpe_abssmall	1390586
dpe_addmuluz	342909
dpe_addz	1943175
dpe_cmp	5264601
dpe_cmpmul	5264593
dpe_divz	14079738
dpe_muluz	799912
dpe_mulz	56974592
dpe_negz	244449
dpe_normalize	48117836
dpe_normalize0	108584536
dpe_submuluz	412453
dpe_submulz	51710204
dpe_subz	53741172
dperotate	652460
dpetor	94285
drop	1347476
flat	1347477
flattergram_i	2967
fplll	0
fplll_dpe	1603914
fplll_fast	2104753
fplll_flatter	625921
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44559
get_gramschmidt	1099077
gramschmidt_dynprec	2694950
gramschmidt_upper	1336
gsisinv	5196473
incrementalGSgen	168
itodbl_exp	162636598
kerint	42
kerint0	70
lll	1243390
lll_finish	2165455
lll_trivial	771748
lllall	36699
lllallgen	168
lllfp	5372673
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4098207
mulshift	318942
nbits2prec64	7494547
pari_rint	10799463
potential	1347476
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31940740
rotateG	443280
rotateG_fast	11549522
setG2_fast	17032808
setG2_heuristic	187610
setG_fast	22664762
setG_heuristic	205626
set_line	24936602
sizered	1347476
spread	5854173
submuliu2n	4197246
submuliu642n	687471
submuliu64_inplace	9633716
submulshift	1507243
submulziu	5923571
submulzu2n	262549
subzi	18524791
truncexpo	12138
u64toi	19904067
u64toineg	671548
update_alpha	11992957
vectail_inplace	2091203

Generated by: LCOV version 1.16