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 30535-d1c72762fc) Lines: 1335 1641 81.4 % Date: 2025-10-31 09:22:06 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	244438
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412453
rotateG	443280
ZM_is_knapsack	606342
ZM_flatter_rank	624474
fplll_flatter	625435
ZM_flatter	626488
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771732
dpe_muluz	799917
get_gramschmidt	1098351
realdotproduct	1183370
ZM_is_lower	1204530
lll	1243327
drop	1345905
flat	1345905
potential	1345905
sizered	1345906
affii_or_copy_gc	1390590
dpe_abssmall	1390606
submulshift	1507243
fplll_dpe	1603169
dpe_addz	1943191
vectail_inplace	2090006
fplll_fast	2103531
lll_finish	2164233
dbldotsquare	2480712
gramschmidt_dynprec	2691811
cget_dpemat	3206333
affdbldpe	3206334
mpabscmp	4092659
addmuliu2n	4104713
submuliu2n	4199407
ZM_is_upper	4233661
addmulziu	4580843
Babai_dpe	4654136
condition_bound	4724697
GS_extraprec	4724698
ZM2_lll_norms	4843694
gsisinv	5192323
dpe_cmpmul	5262339
dpe_cmp	5262347
lllfp	5367871
spread	5849578
submulziu	5923707
ZM_lll_norms	7132576
nbits2prec64	7486448
cget_dblmat	8414111
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10793588
rotateG_fast	11543283
update_alpha	11986737
cget_dpevec	13293079
dpe_divz	14074670
dpe_abscmp	14515145
setG2_fast	17023122
addzi	17784036
subzi	18525556
u64toi	19900941
affidpe	20749367
setG_fast	22650740
set_line	24921285
affdpe	25730909
Babai_fast	30194521
rotate	31922223
dblrotate	34629839
cget_dblvec	34975479
dpe_normalize	48105649
dpe_submulz	51699411
dpe_subz	53730625
dpe_mulz	56961623
dpe_normalize0	108554749
dbldotproduct	118197203
itodbl_exp	162525150

Generated by: LCOV version 1.16