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 30584-b9873745ba) Lines: 1336 1642 81.4 % Date: 2025-12-22 09:21:19 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4655184
Babai_fast	30155756
Babai_heuristic	288770
GS_extraprec	4728140
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847689
ZM_flatter	626869
ZM_flatter_rank	624855
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606709
ZM_is_lower	1205121
ZM_is_upper	4236646
ZM_lll_norms	7137112
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4087164
addmuliu642n	668454
addmuliu64_inplace	9573025
addmulziu	4580808
addmulzu2n	271563
addzi	17783356
affdbldpe	3206826
affdpe	25731955
affidpe	20753043
affii_or_copy_gc	1390419
cget_dblmat	8416723
cget_dblvec	34990862
cget_dpemat	3206823
cget_dpevec	13296011
condition_bound	4728140
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118069563
dbldotsquare	2481342
dblrotate	34573337
do_SWAPgen	196
dpeM_diagonal_shallow	20147
dpe_abscmp	14517463
dpe_abssmall	1390424
dpe_addmuluz	342913
dpe_addz	1943128
dpe_cmp	5263529
dpe_cmpmul	5263524
dpe_divz	14077051
dpe_muluz	799875
dpe_mulz	56968821
dpe_negz	244392
dpe_normalize	48113263
dpe_normalize0	108573355
dpe_submuluz	412411
dpe_submulz	51705405
dpe_subz	53736533
dperotate	652350
dpetor	93802
drop	1347222
flat	1347222
flattergram_i	2967
fplll	0
fplll_dpe	1603415
fplll_fast	2104180
fplll_flatter	625816
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44538
get_gramschmidt	1098850
gramschmidt_dynprec	2694444
gramschmidt_upper	1336
gsisinv	5195880
incrementalGSgen	168
itodbl_exp	162391590
kerint	42
kerint0	70
lll	1243322
lll_finish	2164794
lll_trivial	771697
lllall	36699
lllallgen	168
lllfp	5371716
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097501
mulshift	317717
nbits2prec64	7493273
pari_rint	10777736
potential	1347223
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31891421
rotateG	443224
rotateG_fast	11524476
setG2_fast	16995058
setG2_heuristic	187610
setG_fast	22624545
setG_heuristic	205626
set_line	24895737
sizered	1347223
spread	5853490
submuliu2n	4178298
submuliu642n	684645
submuliu64_inplace	9624052
submulshift	1501323
submulziu	5923344
submulzu2n	262549
subzi	18524928
truncexpo	12138
u64toi	19881722
u64toineg	668454
update_alpha	11967801
vectail_inplace	2090665

Generated by: LCOV version 1.16