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 30256-57c6c2b57f) Lines: 1335 1641 81.4 % Date: 2025-05-09 09:19:30 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
RgM_flop	0
dbg_flatter	0
dbg_flattergram	0
fplll	0
matkerint0	28
lllgramkerim	35
lllkerim	35
kerint	42
lllgen	42
lllgramgen	42
lllgramkerimgen	42
lllkerimgen	42
qflllgram	63
kerint0	70
incrementalGSgen	168
lllallgen	168
lllgramallgen	168
lllint	183
REDgen	196
do_SWAPgen	196
qflllgram0	245
qflll0	301
pslg	504
ZM_flattergram	961
ZM_flattergram_rank	961
gramschmidt_upper	1336
RgM_Cholesky_dynprec	2967
flattergram_i	2967
ZM_to_RM	4144
fplll_heuristic	4144
gc_lll	4733
lllgram	9089
truncexpo	12138
ZC_to_RC	15745
dpeM_diagonal_shallow	20168
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44315
RgM_is_square_mat	45828
dpetor	93746
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244156
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317357
dpe_addmuluz	342688
absrsmall2	401359
dpe_submuluz	411957
rotateG	442783
ZM_is_knapsack	605741
ZM_flatter_rank	616306
fplll_flatter	617267
ZM_flatter	618320
dperotate	651468
addmuliu642n	667843
u64toineg	667843
submuliu642n	683910
absrsmall	696359
lll_trivial	770048
dpe_muluz	799195
get_gramschmidt	1082347
lll	1174816
ZM_is_lower	1182149
realdotproduct	1182991
drop	1335622
potential	1335622
sizered	1335623
flat	1335624
affii_or_copy_gc	1388082
dpe_abssmall	1388093
submulshift	1499977
fplll_dpe	1567637
dpe_addz	1942238
vectail_inplace	2054304
fplll_fast	2067991
lll_finish	2128389
dbldotsquare	2439684
gramschmidt_dynprec	2671247
affdbldpe	3135272
cget_dpemat	3135273
mpabscmp	4063189
addmuliu2n	4085325
submuliu2n	4177796
ZM_is_upper	4177882
addmulziu	4577403
Babai_dpe	4585398
GS_extraprec	4688947
condition_bound	4688947
ZM2_lll_norms	4701013
gsisinv	5148737
dpe_cmpmul	5193556
dpe_cmp	5193557
lllfp	5268372
spread	5805164
submulziu	5920115
ZM_lll_norms	6953626
nbits2prec64	7414022
cget_dblmat	8271954
addmuliu64_inplace	9532776
submuliu64_inplace	9585296
pari_rint	10707038
rotateG_fast	11460856
update_alpha	11903743
cget_dpevec	13039486
dpe_divz	13954828
dpe_abscmp	14395515
setG2_fast	16888251
addzi	17776343
subzi	18517876
u64toi	19801982
affidpe	20519701
setG_fast	22441605
set_line	24676600
affdpe	25564949
Babai_fast	29990651
rotate	31714363
dblrotate	34382456
cget_dblvec	34471093
dpe_normalize	47893162
dpe_submulz	51514753
dpe_subz	53544959
dpe_mulz	56708223
dpe_normalize0	108008500
dbldotproduct	117541601
itodbl_exp	161578741

Generated by: LCOV version 1.16