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 30146-7dee4152cd) Lines: 1335 1641 81.4 % Date: 2025-04-19 09:18:32 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4585385
Babai_fast	29993135
Babai_heuristic	288670
GS_extraprec	4689089
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34904
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15745
ZM2_lll_norms	4701091
ZM_flatter	618319
ZM_flatter_rank	616305
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	605801
ZM_is_lower	1182157
ZM_is_upper	4177906
ZM_lll_norms	6953674
ZM_to_RM	4144
absrsmall	696359
absrsmall2	401359
addmuliu2n	4083587
addmuliu642n	667843
addmuliu64_inplace	9532764
addmulziu	4577385
addmulzu2n	271563
addzi	17776313
affdbldpe	3135214
affdpe	25564778
affidpe	20519848
affii_or_copy_gc	1388075
cget_dblmat	8271956
cget_dblvec	34472758
cget_dpemat	3135209
cget_dpevec	13039564
condition_bound	4689089
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	117553267
dbldotsquare	2439753
dblrotate	34385015
do_SWAPgen	196
dpeM_diagonal_shallow	20147
dpe_abscmp	14395550
dpe_abssmall	1388088
dpe_addmuluz	342689
dpe_addz	1942238
dpe_cmp	5193566
dpe_cmpmul	5193562
dpe_divz	13954894
dpe_muluz	799197
dpe_mulz	56708713
dpe_negz	244182
dpe_normalize	47893764
dpe_normalize0	108009694
dpe_submuluz	411957
dpe_submulz	51515245
dpe_subz	53545486
dperotate	651468
dpetor	93704
drop	1335649
flat	1335651
flattergram_i	2967
fplll	0
fplll_dpe	1567608
fplll_fast	2067992
fplll_flatter	617266
fplll_heuristic	4144
gc_lll	4733
get_gaussred	44315
get_gramschmidt	1082361
gramschmidt_dynprec	2671303
gramschmidt_upper	1336
gsisinv	5148883
incrementalGSgen	168
itodbl_exp	161611958
kerint	42
kerint0	70
lll	1174801
lll_finish	2128395
lll_trivial	770052
lllall	36699
lllallgen	168
lllfp	5268419
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4063505
mulshift	317357
nbits2prec64	7414192
pari_rint	10707843
potential	1335652
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1182991
realsqrdotproduct	197241
rotate	31716900
rotateG	442783
rotateG_fast	11461689
setG2_fast	16889887
setG2_heuristic	187538
setG_fast	22443887
setG_heuristic	205419
set_line	24679073
sizered	1335652
spread	5805363
submuliu2n	4174753
submuliu642n	683910
submuliu64_inplace	9585270
submulshift	1499977
submulziu	5920143
submulzu2n	262549
subzi	18517883
truncexpo	12138
u64toi	19801944
u64toineg	667843
update_alpha	11904557
vectail_inplace	2054330

Generated by: LCOV version 1.16