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 30547-1b347192b6) Lines: 1335 1641 81.4 % Date: 2025-11-13 09:22:32 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654264
Babai_fast	30201000
Babai_heuristic	288770
GS_extraprec	4724891
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843615
ZM_flatter	626497
ZM_flatter_rank	624483
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606526
ZM_is_lower	1204547
ZM_is_upper	4233788
ZM_lll_norms	7132663
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4106245
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580825
addmulzu2n	271563
addzi	17783665
affdbldpe	3206349
affdpe	25731552
affidpe	20750004
affii_or_copy_gc	1390582
cget_dblmat	8414892
cget_dblvec	34979905
cget_dpemat	3206349
cget_dpevec	13292969
condition_bound	4724891
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118221381
dbldotsquare	2480753
dblrotate	34637499
do_SWAPgen	196
dpeM_diagonal_shallow	20286
dpe_abscmp	14515772
dpe_abssmall	1390601
dpe_addmuluz	342912
dpe_addz	1943187
dpe_cmp	5262463
dpe_cmpmul	5262458
dpe_divz	14075303
dpe_muluz	799917
dpe_mulz	56964697
dpe_negz	244440
dpe_normalize	48108597
dpe_normalize0	108561256
dpe_submuluz	412454
dpe_submulz	51702381
dpe_subz	53733579
dperotate	652462
dpetor	94269
drop	1345962
flat	1345963
flattergram_i	2967
fplll	0
fplll_dpe	1603176
fplll_fast	2103730
fplll_flatter	625444
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1098365
gramschmidt_dynprec	2691925
gramschmidt_upper	1336
gsisinv	5192517
incrementalGSgen	168
itodbl_exp	162584092
kerint	42
kerint0	70
lll	1243328
lll_finish	2164440
lll_trivial	771731
lllall	36699
lllallgen	168
lllfp	5368040
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093288
mulshift	318942
nbits2prec64	7486746
pari_rint	10795040
potential	1345962
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31929905
rotateG	443280
rotateG_fast	11545837
setG2_fast	17027135
setG2_heuristic	187610
setG_fast	22655860
setG_heuristic	205626
set_line	24925917
sizered	1345963
spread	5849964
submuliu2n	4200108
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923711
submulzu2n	262549
subzi	18525100
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11989333
vectail_inplace	2090213

Generated by: LCOV version 1.16