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 30504-e6f76a2795) Lines: 1335 1641 81.4 % Date: 2025-09-29 09:23:05 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	20286
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44559
RgM_is_square_mat	45828
dpetor	94269
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244423
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412454
rotateG	443279
ZM_is_knapsack	606460
ZM_flatter_rank	624475
fplll_flatter	625436
ZM_flatter	626489
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771725
dpe_muluz	799918
get_gramschmidt	1098359
realdotproduct	1183370
ZM_is_lower	1204541
lll	1243327
drop	1345901
potential	1345903
flat	1345906
sizered	1345906
affii_or_copy_gc	1390592
dpe_abssmall	1390604
submulshift	1507243
fplll_dpe	1603166
dpe_addz	1943190
vectail_inplace	2090124
fplll_fast	2103650
lll_finish	2164350
dbldotsquare	2480646
gramschmidt_dynprec	2691812
affdbldpe	3206330
cget_dpemat	3206335
mpabscmp	4093032
addmuliu2n	4107537
submuliu2n	4201140
ZM_is_upper	4233668
addmulziu	4580878
Babai_dpe	4654216
GS_extraprec	4724708
condition_bound	4724708
ZM2_lll_norms	4843550
gsisinv	5192343
dpe_cmpmul	5262424
dpe_cmp	5262427
lllfp	5367863
spread	5849722
submulziu	5923722
ZM_lll_norms	7132546
nbits2prec64	7486431
cget_dblmat	8414592
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794478
rotateG_fast	11545244
update_alpha	11988660
cget_dpevec	13292848
dpe_divz	14075207
dpe_abscmp	14515679
setG2_fast	17026254
addzi	17783844
subzi	18525345
u64toi	19900941
affidpe	20749769
setG_fast	22654818
set_line	24925252
affdpe	25731420
Babai_fast	30199447
rotate	31928039
dblrotate	34635685
cget_dblvec	34978409
dpe_normalize	48108424
dpe_submulz	51702127
dpe_subz	53733323
dpe_mulz	56964409
dpe_normalize0	108560759
dbldotproduct	118218545
itodbl_exp	162593140

Generated by: LCOV version 1.16