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 30556-bb9f5f8fc8) Lines: 1335 1641 81.4 % Date: 2025-11-25 09:20:50 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	947
ZM_flattergram_rank	947
gramschmidt_upper	1280
RgM_Cholesky_dynprec	2918
flattergram_i	2918
ZM_to_RM	4237
fplll_heuristic	4237
gc_lll	4814
lllgram	9089
truncexpo	11844
ZC_to_RC	15889
dpeM_diagonal_shallow	20217
RgM_flip	34813
lllgramint	36439
lllall	36699
get_gaussred	44510
RgM_is_square_mat	45828
dpetor	93921
setG2_heuristic	187582
realsqrdotproduct	197336
setG_heuristic	205464
dpe_negz	240962
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288721
mulshift	316711
dpe_addmuluz	342872
absrsmall2	400996
dpe_submuluz	409939
rotateG	443217
ZM_is_knapsack	603815
ZM_flatter_rank	623726
fplll_flatter	624673
ZM_flatter	625740
dperotate	652336
addmuliu642n	667356
u64toineg	667356
submuliu642n	683409
absrsmall	695823
lll_trivial	769078
dpe_muluz	797362
get_gramschmidt	1096566
realdotproduct	1182454
ZM_is_lower	1202905
lll	1241458
drop	1344016
flat	1344017
potential	1344017
sizered	1344018
affii_or_copy_gc	1389316
dpe_abssmall	1389336
submulshift	1494285
fplll_dpe	1599747
dpe_addz	1942987
vectail_inplace	2084935
fplll_fast	2098092
lll_finish	2158324
dbldotsquare	2470416
gramschmidt_dynprec	2688035
affdbldpe	3199490
cget_dpemat	3199497
mpabscmp	4081559
addmuliu2n	4096917
submuliu2n	4178633
ZM_is_upper	4226947
addmulziu	4580412
Babai_dpe	4642374
GS_extraprec	4719414
condition_bound	4719414
ZM2_lll_norms	4834905
gsisinv	5186150
dpe_cmp	5251738
dpe_cmpmul	5251738
lllfp	5359447
spread	5840651
submulziu	5905067
ZM_lll_norms	7116198
nbits2prec64	7475576
cget_dblmat	8392351
addmuliu64_inplace	9323345
submuliu64_inplace	9364045
pari_rint	10697210
rotateG_fast	11463539
update_alpha	11906804
cget_dpevec	13249936
dpe_divz	13982436
dpe_abscmp	14423774
setG2_fast	16904853
addzi	17781947
subzi	18511206
u64toi	19370799
affidpe	20637092
setG_fast	22506234
set_line	24769421
affdpe	25402275
Babai_fast	29954630
rotate	31698861
dblrotate	34390390
cget_dblvec	34834476
dpe_normalize	47082823
dpe_submulz	50449568
dpe_subz	52477535
dpe_mulz	55701176
dpe_normalize0	106420743
dbldotproduct	116801404
itodbl_exp	160511862

Generated by: LCOV version 1.16