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 30552-d1d0643eee) Lines: 1335 1641 81.4 % Date: 2025-11-21 09:22:16 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	4244
fplll_heuristic	4244
gc_lll	4833
lllgram	9089
truncexpo	12138
ZC_to_RC	15945
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44560
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244444
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412454
rotateG	443280
ZM_is_knapsack	606619
ZM_flatter_rank	624493
fplll_flatter	625454
ZM_flatter	626507
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771729
dpe_muluz	799918
get_gramschmidt	1098370
realdotproduct	1183370
ZM_is_lower	1204545
lll	1243327
drop	1346015
potential	1346017
flat	1346018
sizered	1346018
affii_or_copy_gc	1390594
dpe_abssmall	1390605
submulshift	1507243
fplll_dpe	1603181
dpe_addz	1943191
vectail_inplace	2090301
fplll_fast	2103826
lll_finish	2164526
dbldotsquare	2480846
gramschmidt_dynprec	2692035
cget_dpemat	3206361
affdbldpe	3206364
mpabscmp	4093460
addmuliu2n	4106783
submuliu2n	4200894
ZM_is_upper	4233872
addmulziu	4580845
Babai_dpe	4654257
condition_bound	4725026
GS_extraprec	4725027
ZM2_lll_norms	4843669
gsisinv	5192656
dpe_cmpmul	5262463
dpe_cmp	5262473
lllfp	5368208
spread	5850192
submulziu	5923712
ZM_lll_norms	7132832
nbits2prec64	7487027
cget_dblmat	8415288
addmuliu64_inplace	9581970
submuliu64_inplace	9632820
pari_rint	10795817
rotateG_fast	11546574
update_alpha	11989997
cget_dpevec	13293041
dpe_divz	14075361
dpe_abscmp	14515809
setG2_fast	17028081
addzi	17784033
subzi	18525512
u64toi	19902261
affidpe	20750001
setG_fast	22657007
set_line	24927347
affdpe	25731631
Babai_fast	30201958
rotate	31932068
dblrotate	34639703
cget_dblvec	34980975
dpe_normalize	48108785
dpe_submulz	51702595
dpe_subz	53733794
dpe_mulz	56964952
dpe_normalize0	108561820
dbldotproduct	118225915
itodbl_exp	162602594

Generated by: LCOV version 1.16