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 30536-6f6fcf9613) Lines: 1335 1641 81.4 % Date: 2025-11-03 09:21:41 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654190
Babai_fast	30195183
Babai_heuristic	288770
GS_extraprec	4724854
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843682
ZM_flatter	626502
ZM_flatter_rank	624488
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606435
ZM_is_lower	1204543
ZM_is_upper	4233762
ZM_lll_norms	7132642
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4105839
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580780
addmulzu2n	271563
addzi	17782932
affdbldpe	3206369
affdpe	25730690
affidpe	20749460
affii_or_copy_gc	1390562
cget_dblmat	8414552
cget_dblvec	34977582
cget_dpemat	3206372
cget_dpevec	13293292
condition_bound	4724854
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118200023
dbldotsquare	2480851
dblrotate	34631295
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515247
dpe_abssmall	1390581
dpe_addmuluz	342913
dpe_addz	1943182
dpe_cmp	5262394
dpe_cmpmul	5262389
dpe_divz	14074662
dpe_muluz	799912
dpe_mulz	56960540
dpe_negz	244447
dpe_normalize	48105007
dpe_normalize0	108552638
dpe_submuluz	412453
dpe_submulz	51698492
dpe_subz	53729551
dperotate	652455
dpetor	94271
drop	1345958
flat	1345958
flattergram_i	2967
fplll	0
fplll_dpe	1603186
fplll_fast	2103641
fplll_flatter	625449
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1098366
gramschmidt_dynprec	2691916
gramschmidt_upper	1336
gsisinv	5192485
incrementalGSgen	168
itodbl_exp	162542496
kerint	42
kerint0	70
lll	1243328
lll_finish	2164344
lll_trivial	771733
lllall	36699
lllallgen	168
lllfp	5368022
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4092937
mulshift	318942
nbits2prec64	7486697
pari_rint	10794272
potential	1345958
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31923636
rotateG	443277
rotateG_fast	11543781
setG2_fast	17023773
setG2_heuristic	187610
setG_fast	22651865
setG_heuristic	205626
set_line	24922483
sizered	1345958
spread	5849840
submuliu2n	4199990
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923464
submulzu2n	262549
subzi	18524410
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11987194
vectail_inplace	2090118

Generated by: LCOV version 1.16