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 30532-0c728fd268) Lines: 1335 1641 81.4 % Date: 2025-10-22 09:22:36 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654229
Babai_fast	30199432
Babai_heuristic	288770
GS_extraprec	4724996
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843997
ZM_flatter	626508
ZM_flatter_rank	624494
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606430
ZM_is_lower	1204550
ZM_is_upper	4233933
ZM_lll_norms	7132946
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4106032
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580863
addmulzu2n	271563
addzi	17783890
affdbldpe	3206372
affdpe	25731269
affidpe	20749903
affii_or_copy_gc	1390593
cget_dblmat	8414505
cget_dblvec	34978392
cget_dpemat	3206371
cget_dpevec	13293280
condition_bound	4724996
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118216136
dbldotsquare	2480781
dblrotate	34635959
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515643
dpe_abssmall	1390596
dpe_addmuluz	342913
dpe_addz	1943189
dpe_cmp	5262441
dpe_cmpmul	5262433
dpe_divz	14075137
dpe_muluz	799917
dpe_mulz	56963940
dpe_negz	244432
dpe_normalize	48108106
dpe_normalize0	108559797
dpe_submuluz	412454
dpe_submulz	51701706
dpe_subz	53732902
dperotate	652462
dpetor	94271
drop	1346035
flat	1346033
flattergram_i	2967
fplll	0
fplll_dpe	1603187
fplll_fast	2103629
fplll_flatter	625455
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1098368
gramschmidt_dynprec	2692068
gramschmidt_upper	1336
gsisinv	5192608
incrementalGSgen	168
itodbl_exp	162516497
kerint	42
kerint0	70
lll	1243327
lll_finish	2164336
lll_trivial	771728
lllall	36699
lllallgen	168
lllfp	5368254
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093378
mulshift	318942
nbits2prec64	7487059
pari_rint	10794345
potential	1346035
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31928388
rotateG	443280
rotateG_fast	11545306
setG2_fast	17026172
setG2_heuristic	187610
setG_fast	22654349
setG_heuristic	205626
set_line	24924441
sizered	1346035
spread	5849962
submuliu2n	4199713
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923697
submulzu2n	262549
subzi	18525240
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11988845
vectail_inplace	2090109

Generated by: LCOV version 1.16