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 30532-0c728fd268) Lines: 1335 1641 81.4 % Date: 2025-10-20 09:22:51 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	44560
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	188352
realsqrdotproduct	198160
setG_heuristic	206374
dpe_negz	244433
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	289747
mulshift	318943
dpe_addmuluz	342913
absrsmall2	402705
dpe_submuluz	412454
rotateG	443711
ZM_is_knapsack	606408
ZM_flatter_rank	624465
fplll_flatter	625426
ZM_flatter	626479
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	698128
lll_trivial	771727
dpe_muluz	799916
get_gramschmidt	1098348
realdotproduct	1186355
ZM_is_lower	1204529
lll	1243329
drop	1345894
potential	1345895
flat	1345898
sizered	1345898
affii_or_copy_gc	1390596
dpe_abssmall	1390599
submulshift	1507251
fplll_dpe	1603162
dpe_addz	1943187
vectail_inplace	2090072
fplll_fast	2103594
lll_finish	2164296
dbldotsquare	2480558
gramschmidt_dynprec	2691796
cget_dpemat	3206317
affdbldpe	3206322
mpabscmp	4092926
addmuliu2n	4106990
submuliu2n	4200809
ZM_is_upper	4233640
addmulziu	4580852
Babai_dpe	4654180
GS_extraprec	4724663
condition_bound	4724664
ZM2_lll_norms	4843614
gsisinv	5192300
dpe_cmpmul	5262370
dpe_cmp	5262384
lllfp	5367844
spread	5849623
submulziu	5923721
ZM_lll_norms	7132522
nbits2prec64	7486420
cget_dblmat	8414366
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10793517
rotateG_fast	11544399
update_alpha	11988331
cget_dpevec	13292709
dpe_divz	14075028
dpe_abscmp	14515526
setG2_fast	17024963
addzi	17783894
subzi	18525339
u64toi	19900941
affidpe	20749497
setG_fast	22652932
set_line	24923247
affdpe	25731174
Babai_fast	30197592
rotate	31927798
dblrotate	34633239
cget_dblvec	34977191
dpe_normalize	48107899
dpe_submulz	51701585
dpe_subz	53732790
dpe_mulz	56963796
dpe_normalize0	108559437
dbldotproduct	118211244
itodbl_exp	162540795

Generated by: LCOV version 1.16