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 30499-74bdd0ac5b) Lines: 1335 1641 81.4 % Date: 2025-09-17 09:23:49 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654230
Babai_fast	30199890
Babai_heuristic	289747
GS_extraprec	4724929
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4843851
ZM_flatter	626503
ZM_flatter_rank	624489
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606453
ZM_is_lower	1204543
ZM_is_upper	4233867
ZM_lll_norms	7132836
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4105104
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580839
addmulzu2n	271563
addzi	17783410
affdbldpe	3206350
affdpe	25731391
affidpe	20749799
affii_or_copy_gc	1390587
cget_dblmat	8414581
cget_dblvec	34979209
cget_dpemat	3206350
cget_dpevec	13292855
condition_bound	4724930
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118221061
dbldotsquare	2480610
dblrotate	34636167
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515693
dpe_abssmall	1390597
dpe_addmuluz	342913
dpe_addz	1943185
dpe_cmp	5262431
dpe_cmpmul	5262421
dpe_divz	14075212
dpe_muluz	799918
dpe_mulz	56964563
dpe_negz	244434
dpe_normalize	48108684
dpe_normalize0	108561271
dpe_submuluz	412454
dpe_submulz	51702293
dpe_subz	53733485
dperotate	652462
dpetor	94271
drop	1346002
flat	1346006
flattergram_i	2967
fplll	0
fplll_dpe	1603177
fplll_fast	2103649
fplll_flatter	625450
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44560
get_gramschmidt	1098361
gramschmidt_dynprec	2692008
gramschmidt_upper	1336
gsisinv	5192552
incrementalGSgen	168
itodbl_exp	162613478
kerint	42
kerint0	70
lll	1243329
lll_finish	2164355
lll_trivial	771727
lllall	36699
lllallgen	168
lllfp	5368173
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093453
mulshift	318943
nbits2prec64	7486927
pari_rint	10794551
potential	1346003
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31930620
rotateG	443711
rotateG_fast	11545401
setG2_fast	17026609
setG2_heuristic	188352
setG_fast	22655375
setG_heuristic	206374
set_line	24925815
sizered	1346005
spread	5849930
submuliu2n	4197598
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507251
submulziu	5923691
submulzu2n	262549
subzi	18524887
truncexpo	12139
u64toi	19900941
u64toineg	671548
update_alpha	11989228
vectail_inplace	2090130

Generated by: LCOV version 1.16