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 30368-f792e9816c) Lines: 1335 1641 81.4 % Date: 2025-07-04 09:22:57 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	4246
fplll_heuristic	4246
gc_lll	4835
lllgram	9089
truncexpo	12139
ZC_to_RC	15952
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44553
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	188352
realsqrdotproduct	198160
setG_heuristic	206374
dpe_negz	244438
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	289747
mulshift	318943
dpe_addmuluz	342913
absrsmall2	402705
dpe_submuluz	412446
rotateG	443711
ZM_is_knapsack	606511
ZM_flatter_rank	624000
fplll_flatter	624961
ZM_flatter	626014
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	698128
lll_trivial	771029
dpe_muluz	799910
get_gramschmidt	1097871
realdotproduct	1186355
ZM_is_lower	1204039
lll	1243283
drop	1345313
flat	1345313
potential	1345313
sizered	1345313
affii_or_copy_gc	1390570
dpe_abssmall	1390593
submulshift	1507251
fplll_dpe	1602659
dpe_addz	1943191
vectail_inplace	2089678
fplll_fast	2103191
lll_finish	2163899
dbldotsquare	2480186
gramschmidt_dynprec	2690622
cget_dpemat	3205311
affdbldpe	3205316
mpabscmp	4092164
addmuliu2n	4105125
submuliu2n	4197942
ZM_is_upper	4231973
addmulziu	4580833
Babai_dpe	4653231
GS_extraprec	4723513
condition_bound	4723513
ZM2_lll_norms	4840235
gsisinv	5191136
dpe_cmpmul	5261446
dpe_cmp	5261447
lllfp	5366027
spread	5848555
submulziu	5923619
ZM_lll_norms	7128747
nbits2prec64	7483584
cget_dblmat	8412744
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794763
rotateG_fast	11545666
update_alpha	11989506
cget_dpevec	13289351
dpe_divz	14073806
dpe_abscmp	14514265
setG2_fast	17026818
addzi	17783857
subzi	18525167
u64toi	19900941
affidpe	20746922
setG_fast	22654878
set_line	24924729
affdpe	25729996
Babai_fast	30199621
rotate	31931459
dblrotate	34637047
cget_dblvec	34973261
dpe_normalize	48105998
dpe_submulz	51700784
dpe_subz	53731977
dpe_mulz	56962121
dpe_normalize0	108554574
dbldotproduct	118220039
itodbl_exp	162622228

Generated by: LCOV version 1.16