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 30550-07450a7a86) Lines: 1335 1641 81.4 % Date: 2025-11-17 09:22:41 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	244421
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412454
rotateG	443280
ZM_is_knapsack	606538
ZM_flatter_rank	624475
fplll_flatter	625436
ZM_flatter	626489
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771735
dpe_muluz	799918
get_gramschmidt	1098363
realdotproduct	1183370
ZM_is_lower	1204549
lll	1243327
flat	1345932
drop	1345933
potential	1345934
sizered	1345934
affii_or_copy_gc	1390588
dpe_abssmall	1390601
submulshift	1507243
fplll_dpe	1603171
dpe_addz	1943183
vectail_inplace	2090212
fplll_fast	2103735
lll_finish	2164437
dbldotsquare	2480856
gramschmidt_dynprec	2691866
affdbldpe	3206339
cget_dpemat	3206348
mpabscmp	4093031
addmuliu2n	4102692
submuliu2n	4195891
ZM_is_upper	4233728
addmulziu	4580842
Babai_dpe	4654199
GS_extraprec	4724768
condition_bound	4724768
ZM2_lll_norms	4843496
gsisinv	5192405
dpe_cmpmul	5262407
dpe_cmp	5262412
lllfp	5367955
spread	5849864
submulziu	5923713
ZM_lll_norms	7132580
nbits2prec64	7486641
cget_dblmat	8414911
addmuliu64_inplace	9581970
submuliu64_inplace	9632820
pari_rint	10796105
rotateG_fast	11544878
update_alpha	11988310
cget_dpevec	13293153
dpe_divz	14074914
dpe_abscmp	14515371
setG2_fast	17025601
addzi	17783737
subzi	18525249
u64toi	19902261
affidpe	20749604
setG_fast	22654156
set_line	24924593
affdpe	25731188
Babai_fast	30197292
rotate	31926962
dblrotate	34634682
cget_dblvec	34979050
dpe_normalize	48106438
dpe_submulz	51700243
dpe_subz	53731453
dpe_mulz	56962544
dpe_normalize0	108556505
dbldotproduct	118205163
itodbl_exp	162585513

Generated by: LCOV version 1.16