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
Babai_dpe	4654216
Babai_fast	30199447
Babai_heuristic	288770
GS_extraprec	4724708
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843550
ZM_flatter	626489
ZM_flatter_rank	624475
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606460
ZM_is_lower	1204541
ZM_is_upper	4233668
ZM_lll_norms	7132546
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4107537
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580878
addmulzu2n	271563
addzi	17783844
affdbldpe	3206330
affdpe	25731420
affidpe	20749769
affii_or_copy_gc	1390592
cget_dblmat	8414592
cget_dblvec	34978409
cget_dpemat	3206335
cget_dpevec	13292848
condition_bound	4724708
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118218545
dbldotsquare	2480646
dblrotate	34635685
do_SWAPgen	196
dpeM_diagonal_shallow	20286
dpe_abscmp	14515679
dpe_abssmall	1390604
dpe_addmuluz	342913
dpe_addz	1943190
dpe_cmp	5262427
dpe_cmpmul	5262424
dpe_divz	14075207
dpe_muluz	799918
dpe_mulz	56964409
dpe_negz	244423
dpe_normalize	48108424
dpe_normalize0	108560759
dpe_submuluz	412454
dpe_submulz	51702127
dpe_subz	53733323
dperotate	652462
dpetor	94269
drop	1345901
flat	1345906
flattergram_i	2967
fplll	0
fplll_dpe	1603166
fplll_fast	2103650
fplll_flatter	625436
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44559
get_gramschmidt	1098359
gramschmidt_dynprec	2691812
gramschmidt_upper	1336
gsisinv	5192343
incrementalGSgen	168
itodbl_exp	162593140
kerint	42
kerint0	70
lll	1243327
lll_finish	2164350
lll_trivial	771725
lllall	36699
lllallgen	168
lllfp	5367863
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093032
mulshift	318942
nbits2prec64	7486431
pari_rint	10794478
potential	1345903
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31928039
rotateG	443279
rotateG_fast	11545244
setG2_fast	17026254
setG2_heuristic	187610
setG_fast	22654818
setG_heuristic	205626
set_line	24925252
sizered	1345906
spread	5849722
submuliu2n	4201140
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923722
submulzu2n	262549
subzi	18525345
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11988660
vectail_inplace	2090124

Generated by: LCOV version 1.16