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 30145-32f0acf4da) Lines: 1335 1641 81.4 % Date: 2025-04-18 09:18:41 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	20147
RgM_flip	34904
lllgramint	36439
lllall	36699
get_gaussred	44315
RgM_is_square_mat	45828
dpetor	93704
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244166
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317357
dpe_addmuluz	342688
absrsmall2	401359
dpe_submuluz	411955
rotateG	442783
ZM_is_knapsack	605813
ZM_flatter_rank	616310
fplll_flatter	617271
ZM_flatter	618324
dperotate	651468
addmuliu642n	667843
u64toineg	667843
submuliu642n	683910
absrsmall	696359
lll_trivial	770047
dpe_muluz	799191
get_gramschmidt	1082355
lll	1174799
ZM_is_lower	1182154
realdotproduct	1182991
drop	1335685
flat	1335685
potential	1335685
sizered	1335686
affii_or_copy_gc	1388065
dpe_abssmall	1388080
submulshift	1499977
fplll_dpe	1567598
dpe_addz	1942235
vectail_inplace	2054327
fplll_fast	2067999
lll_finish	2128393
dbldotsquare	2439797
gramschmidt_dynprec	2671369
affdbldpe	3135194
cget_dpemat	3135199
mpabscmp	4063484
addmuliu2n	4085309
submuliu2n	4177832
ZM_is_upper	4177967
addmulziu	4577300
Babai_dpe	4585371
GS_extraprec	4689160
condition_bound	4689160
ZM2_lll_norms	4701130
gsisinv	5148954
dpe_cmpmul	5193546
dpe_cmp	5193553
lllfp	5268518
spread	5805444
submulziu	5919991
ZM_lll_norms	6953731
nbits2prec64	7414364
cget_dblmat	8271979
addmuliu64_inplace	9532764
submuliu64_inplace	9585270
pari_rint	10708325
rotateG_fast	11461815
update_alpha	11904750
cget_dpevec	13039502
dpe_divz	13954872
dpe_abscmp	14395524
setG2_fast	16889951
addzi	17776100
subzi	18517571
u64toi	19801944
affidpe	20519823
setG_fast	22443670
set_line	24678192
affdpe	25564706
Babai_fast	29992986
rotate	31717417
dblrotate	34385446
cget_dblvec	34472084
dpe_normalize	47893499
dpe_submulz	51514940
dpe_subz	53545134
dpe_mulz	56708350
dpe_normalize0	108009217
dbldotproduct	117549884
itodbl_exp	161568648

Generated by: LCOV version 1.16