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 30571-c0dfe82732) Lines: 1336 1642 81.4 % Date: 2025-12-10 09:22:03 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656348
Babai_fast	30205189
Babai_heuristic	288770
GS_extraprec	4728338
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4848190
ZM_flatter	626959
ZM_flatter_rank	624945
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606652
ZM_is_lower	1205231
ZM_is_upper	4237362
ZM_lll_norms	7138143
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4106402
addmuliu642n	671548
addmuliu64_inplace	9582880
addmulziu	4580838
addmulzu2n	271563
addzi	17783918
affdbldpe	3207776
affdpe	25735807
affidpe	20757106
affii_or_copy_gc	1390592
cget_dblmat	8418405
cget_dblvec	34995234
cget_dpemat	3207781
cget_dpevec	13299713
condition_bound	4728338
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118235671
dbldotsquare	2481803
dblrotate	34643070
do_SWAPgen	196
dpeM_diagonal_shallow	20293
dpe_abscmp	14519953
dpe_abssmall	1390595
dpe_addmuluz	342913
dpe_addz	1943190
dpe_cmp	5264525
dpe_cmpmul	5264528
dpe_divz	14079470
dpe_muluz	799918
dpe_mulz	56973670
dpe_negz	244446
dpe_normalize	48116817
dpe_normalize0	108582359
dpe_submuluz	412454
dpe_submulz	51709313
dpe_subz	53740486
dperotate	652460
dpetor	94283
drop	1347386
flat	1347391
flattergram_i	2967
fplll	0
fplll_dpe	1603890
fplll_fast	2104607
fplll_flatter	625906
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1099064
gramschmidt_dynprec	2694778
gramschmidt_upper	1336
gsisinv	5196205
incrementalGSgen	168
itodbl_exp	162587841
kerint	42
kerint0	70
lll	1243390
lll_finish	2165310
lll_trivial	771750
lllall	36699
lllallgen	168
lllfp	5372413
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097610
mulshift	318942
nbits2prec64	7494143
pari_rint	10797724
potential	1347390
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31935468
rotateG	443279
rotateG_fast	11547724
setG2_fast	17030012
setG2_heuristic	187610
setG_fast	22661154
setG_heuristic	205626
set_line	24932116
sizered	1347391
spread	5853782
submuliu2n	4200282
submuliu642n	687471
submuliu64_inplace	9633716
submulshift	1507243
submulziu	5923734
submulzu2n	262549
subzi	18525337
truncexpo	12138
u64toi	19904067
u64toineg	671548
update_alpha	11991215
vectail_inplace	2091057

Generated by: LCOV version 1.16