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 30561-4f4869c0e7) Lines: 1335 1641 81.4 % Date: 2025-11-28 09:21:39 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654309
Babai_fast	30203495
Babai_heuristic	289747
GS_extraprec	4725065
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4843621
ZM_flatter	626508
ZM_flatter_rank	624494
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606715
ZM_is_lower	1204562
ZM_is_upper	4233930
ZM_lll_norms	7132902
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4105045
addmuliu642n	671548
addmuliu64_inplace	9581970
addmulziu	4580848
addmulzu2n	271563
addzi	17783863
affdbldpe	3206388
affdpe	25731767
affidpe	20750279
affii_or_copy_gc	1390599
cget_dblmat	8415712
cget_dblvec	34984053
cget_dpemat	3206387
cget_dpevec	13293271
condition_bound	4725065
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118230485
dbldotsquare	2480995
dblrotate	34641665
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14516029
dpe_abssmall	1390608
dpe_addmuluz	342910
dpe_addz	1943188
dpe_cmp	5262524
dpe_cmpmul	5262520
dpe_divz	14075530
dpe_muluz	799914
dpe_mulz	56965711
dpe_negz	244446
dpe_normalize	48109585
dpe_normalize0	108563394
dpe_submuluz	412454
dpe_submulz	51703355
dpe_subz	53734525
dperotate	652460
dpetor	94267
drop	1346028
flat	1346028
flattergram_i	2967
fplll	0
fplll_dpe	1603195
fplll_fast	2103931
fplll_flatter	625455
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44559
get_gramschmidt	1098384
gramschmidt_dynprec	2692051
gramschmidt_upper	1336
gsisinv	5192701
incrementalGSgen	168
itodbl_exp	162619511
kerint	42
kerint0	70
lll	1243329
lll_finish	2164635
lll_trivial	771732
lllall	36699
lllallgen	168
lllfp	5368237
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093762
mulshift	318943
nbits2prec64	7487112
pari_rint	10796699
potential	1346027
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31936131
rotateG	443710
rotateG_fast	11547241
setG2_fast	17029214
setG2_heuristic	188352
setG_fast	22658772
setG_heuristic	206374
set_line	24929531
sizered	1346028
spread	5850332
submuliu2n	4197568
submuliu642n	687471
submuliu64_inplace	9632820
submulshift	1507251
submulziu	5923680
submulzu2n	262549
subzi	18525340
truncexpo	12139
u64toi	19902261
u64toineg	671548
update_alpha	11991063
vectail_inplace	2090409

Generated by: LCOV version 1.16