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 30258-3ec8de0880) Lines: 1335 1641 81.4 % Date: 2025-05-10 09:18:45 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4585509
Babai_fast	29992086
Babai_heuristic	288670
GS_extraprec	4689139
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15745
ZM2_lll_norms	4701139
ZM_flatter	618339
ZM_flatter_rank	616325
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	605812
ZM_is_lower	1182182
ZM_is_upper	4178078
ZM_lll_norms	6953846
ZM_to_RM	4144
absrsmall	696359
absrsmall2	401359
addmuliu2n	4084709
addmuliu642n	667843
addmuliu64_inplace	9532776
addmulziu	4577395
addmulzu2n	271563
addzi	17776452
affdbldpe	3135323
affdpe	25565328
affidpe	20520200
affii_or_copy_gc	1388084
cget_dblmat	8272376
cget_dblvec	34473005
cget_dpemat	3135322
cget_dpevec	13039825
condition_bound	4689139
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	117545825
dbldotsquare	2439793
dblrotate	34383923
do_SWAPgen	196
dpeM_diagonal_shallow	20168
dpe_abscmp	14395763
dpe_abssmall	1388087
dpe_addmuluz	342689
dpe_addz	1942237
dpe_cmp	5193677
dpe_cmpmul	5193679
dpe_divz	13955120
dpe_muluz	799196
dpe_mulz	56708912
dpe_negz	244180
dpe_normalize	47893723
dpe_normalize0	108009989
dpe_submuluz	411957
dpe_submulz	51515353
dpe_subz	53545587
dperotate	651466
dpetor	93746
drop	1335706
flat	1335703
flattergram_i	2967
fplll	0
fplll_dpe	1567663
fplll_fast	2068100
fplll_flatter	617286
fplll_heuristic	4144
gc_lll	4733
get_gaussred	44314
get_gramschmidt	1082382
gramschmidt_dynprec	2671409
gramschmidt_upper	1336
gsisinv	5148940
incrementalGSgen	168
itodbl_exp	161546264
kerint	42
kerint0	70
lll	1174812
lll_finish	2128488
lll_trivial	770052
lllall	36699
lllallgen	168
lllfp	5268614
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4063523
mulshift	317357
nbits2prec64	7414403
pari_rint	10707749
potential	1335706
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1182991
realsqrdotproduct	197241
rotate	31715856
rotateG	442782
rotateG_fast	11461301
setG2_fast	16889110
setG2_heuristic	187538
setG_fast	22442622
setG_heuristic	205419
set_line	24677624
sizered	1335706
spread	5805434
submuliu2n	4176874
submuliu642n	683910
submuliu64_inplace	9585296
submulshift	1499977
submulziu	5920091
submulzu2n	262549
subzi	18517964
truncexpo	12138
u64toi	19801982
u64toineg	667843
update_alpha	11904284
vectail_inplace	2054404

Generated by: LCOV version 1.16