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 30316-0578a48613) Lines: 1335 1641 81.4 % Date: 2025-06-04 09:19:51 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	20167
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44322
RgM_is_square_mat	45828
dpetor	93716
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244165
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317352
dpe_addmuluz	342689
absrsmall2	401359
dpe_submuluz	411956
rotateG	442790
ZM_is_knapsack	605853
ZM_flatter_rank	616284
fplll_flatter	617245
ZM_flatter	618298
dperotate	651482
addmuliu642n	667795
u64toineg	667795
submuliu642n	683874
absrsmall	696359
lll_trivial	770474
dpe_muluz	799195
get_gramschmidt	1082356
lll	1174816
ZM_is_lower	1182164
realdotproduct	1182991
flat	1335549
potential	1335550
drop	1335551
sizered	1335551
affii_or_copy_gc	1388077
dpe_abssmall	1388102
submulshift	1499893
fplll_dpe	1567678
dpe_addz	1942234
vectail_inplace	2054443
fplll_fast	2068092
lll_finish	2128523
dbldotsquare	2439736
gramschmidt_dynprec	2671100
affdbldpe	3135355
cget_dpemat	3135365
mpabscmp	4063273
addmuliu2n	4082172
submuliu2n	4173234
ZM_is_upper	4177743
addmulziu	4577389
Babai_dpe	4585532
GS_extraprec	4688740
condition_bound	4688740
ZM2_lll_norms	4700637
gsisinv	5148565
dpe_cmpmul	5193669
dpe_cmp	5193671
lllfp	5268147
spread	5805103
submulziu	5920193
ZM_lll_norms	6953762
nbits2prec64	7413756
cget_dblmat	8272350
addmuliu64_inplace	9532506
submuliu64_inplace	9584977
pari_rint	10707854
rotateG_fast	11461865
update_alpha	11904795
cget_dpevec	13039849
dpe_divz	13955298
dpe_abscmp	14395971
setG2_fast	16889607
addzi	17776260
subzi	18517864
u64toi	19801357
affidpe	20520419
setG_fast	22443612
set_line	24678555
affdpe	25565809
Babai_fast	29992599
rotate	31717474
dblrotate	34385594
cget_dblvec	34473925
dpe_normalize	47894234
dpe_submulz	51516130
dpe_subz	53546336
dpe_mulz	56709687
dpe_normalize0	108011275
dbldotproduct	117549950
itodbl_exp	161595127

Generated by: LCOV version 1.16