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 30572-91e0396466) Lines: 1336 1642 81.4 % Date: 2025-12-12 09:22:23 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656319
Babai_fast	30207861
Babai_heuristic	288770
GS_extraprec	4728243
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4848105
ZM_flatter	626949
ZM_flatter_rank	624935
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606735
ZM_is_lower	1205216
ZM_is_upper	4237281
ZM_lll_norms	7138126
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104694
addmuliu642n	671548
addmuliu64_inplace	9582880
addmulziu	4580838
addmulzu2n	271563
addzi	17783897
affdbldpe	3207752
affdpe	25735782
affidpe	20757257
affii_or_copy_gc	1390595
cget_dblmat	8418699
cget_dblvec	34997630
cget_dpemat	3207758
cget_dpevec	13299808
condition_bound	4728243
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118245733
dbldotsquare	2481975
dblrotate	34646396
do_SWAPgen	196
dpeM_diagonal_shallow	20294
dpe_abscmp	14520010
dpe_abssmall	1390604
dpe_addmuluz	342913
dpe_addz	1943191
dpe_cmp	5264502
dpe_cmpmul	5264503
dpe_divz	14079509
dpe_muluz	799915
dpe_mulz	56974301
dpe_negz	244434
dpe_normalize	48117535
dpe_normalize0	108583853
dpe_submuluz	412448
dpe_submulz	51709956
dpe_subz	53741107
dperotate	652462
dpetor	94283
drop	1347356
flat	1347354
flattergram_i	2967
fplll	0
fplll_dpe	1603880
fplll_fast	2104679
fplll_flatter	625896
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1099045
gramschmidt_dynprec	2694710
gramschmidt_upper	1336
gsisinv	5196096
incrementalGSgen	168
itodbl_exp	162626335
kerint	42
kerint0	70
lll	1243390
lll_finish	2165387
lll_trivial	771748
lllall	36699
lllallgen	168
lllfp	5372308
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097765
mulshift	318942
nbits2prec64	7493942
pari_rint	10798777
potential	1347355
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31938651
rotateG	443280
rotateG_fast	11548820
setG2_fast	17031727
setG2_heuristic	187610
setG_fast	22663420
setG_heuristic	205626
set_line	24934844
sizered	1347356
spread	5853750
submuliu2n	4197013
submuliu642n	687471
submuliu64_inplace	9633716
submulshift	1507243
submulziu	5923718
submulzu2n	262549
subzi	18525278
truncexpo	12138
u64toi	19904067
u64toineg	671548
update_alpha	11992232
vectail_inplace	2091132

Generated by: LCOV version 1.16