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 30552-d1d0643eee) Lines: 1335 1641 81.4 % Date: 2025-11-24 09:22:36 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	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44560
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244417
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412454
rotateG	443279
ZM_is_knapsack	606477
ZM_flatter_rank	624451
fplll_flatter	625412
ZM_flatter	626465
dperotate	652460
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771730
dpe_muluz	799918
get_gramschmidt	1098321
realdotproduct	1183370
ZM_is_lower	1204500
lll	1243328
drop	1345859
flat	1345859
potential	1345860
sizered	1345860
affii_or_copy_gc	1390591
dpe_abssmall	1390608
submulshift	1507243
fplll_dpe	1603128
dpe_addz	1943187
vectail_inplace	2090113
fplll_fast	2103635
lll_finish	2164342
dbldotsquare	2480641
gramschmidt_dynprec	2691719
affdbldpe	3206252
cget_dpemat	3206261
mpabscmp	4092723
addmuliu2n	4103171
submuliu2n	4196032
ZM_is_upper	4233532
addmulziu	4580860
Babai_dpe	4654037
GS_extraprec	4724599
condition_bound	4724600
ZM2_lll_norms	4843380
gsisinv	5192217
dpe_cmpmul	5262247
dpe_cmp	5262253
lllfp	5367724
spread	5849611
submulziu	5923742
ZM_lll_norms	7132332
nbits2prec64	7486277
cget_dblmat	8414508
addmuliu64_inplace	9581970
submuliu64_inplace	9632820
pari_rint	10794393
rotateG_fast	11544074
update_alpha	11987459
cget_dpevec	13292463
dpe_divz	14074448
dpe_abscmp	14514894
setG2_fast	17024232
addzi	17783921
subzi	18525270
u64toi	19902261
affidpe	20748865
setG_fast	22652450
set_line	24922769
affdpe	25730524
Babai_fast	30195589
rotate	31924496
dblrotate	34632223
cget_dblvec	34976809
dpe_normalize	48105079
dpe_submulz	51698704
dpe_subz	53729917
dpe_mulz	56960835
dpe_normalize0	108553360
dbldotproduct	118200180
itodbl_exp	162590137

Generated by: LCOV version 1.16