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 30482-15ec328664) Lines: 1335 1641 81.4 % Date: 2025-09-06 09:24:15 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	44559
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244440
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412452
rotateG	443280
ZM_is_knapsack	606543
ZM_flatter_rank	624488
fplll_flatter	625449
ZM_flatter	626502
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771716
dpe_muluz	799916
get_gramschmidt	1098365
realdotproduct	1183370
ZM_is_lower	1204548
lll	1243315
flat	1346015
sizered	1346015
drop	1346016
potential	1346016
affii_or_copy_gc	1390588
dpe_abssmall	1390595
submulshift	1507243
fplll_dpe	1603174
dpe_addz	1943176
vectail_inplace	2090228
fplll_fast	2103738
lll_finish	2164448
dbldotsquare	2480769
gramschmidt_dynprec	2692031
cget_dpemat	3206337
affdbldpe	3206343
mpabscmp	4093612
addmuliu2n	4103724
submuliu2n	4196374
ZM_is_upper	4233889
addmulziu	4580819
Babai_dpe	4654257
GS_extraprec	4724957
condition_bound	4724957
ZM2_lll_norms	4841654
gsisinv	5192587
dpe_cmpmul	5262460
dpe_cmp	5262470
lllfp	5368183
spread	5850047
submulziu	5923687
ZM_lll_norms	7130712
nbits2prec64	7486992
cget_dblmat	8414939
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10795359
rotateG_fast	11546270
update_alpha	11989671
cget_dpevec	13293003
dpe_divz	14075338
dpe_abscmp	14515848
setG2_fast	17027967
addzi	17783517
subzi	18525073
u64toi	19900941
affidpe	20750062
setG_fast	22656994
set_line	24926763
affdpe	25731492
Babai_fast	30202273
rotate	31931098
dblrotate	34638747
cget_dblvec	34981074
dpe_normalize	48109064
dpe_submulz	51702731
dpe_subz	53733933
dpe_mulz	56965043
dpe_normalize0	108562189
dbldotproduct	118226601
itodbl_exp	162600916

Generated by: LCOV version 1.16