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 30571-c0dfe82732) Lines: 1336 1642 81.4 % Date: 2025-12-08 09:22:00 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	20294
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44558
RgM_is_square_mat	45828
dpetor	94285
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244418
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412454
rotateG	443280
ZM_is_knapsack	606733
ZM_flatter_rank	624936
fplll_flatter	625897
ZM_flatter	626950
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771753
dpe_muluz	799918
get_gramschmidt	1099053
realdotproduct	1183370
ZM_is_lower	1205218
lll	1243391
flat	1347384
drop	1347385
potential	1347385
sizered	1347385
affii_or_copy_gc	1390589
dpe_abssmall	1390604
submulshift	1507243
fplll_dpe	1603890
dpe_addz	1943185
vectail_inplace	2091137
fplll_fast	2104694
lll_finish	2165392
dbldotsquare	2481826
gramschmidt_dynprec	2694769
affdbldpe	3207778
cget_dpemat	3207781
mpabscmp	4097855
addmuliu2n	4104429
submuliu2n	4196892
ZM_is_upper	4237340
addmulziu	4580853
Babai_dpe	4656329
GS_extraprec	4728315
condition_bound	4728315
ZM2_lll_norms	4848064
gsisinv	5196184
dpe_cmpmul	5264500
dpe_cmp	5264503
lllfp	5372395
spread	5853833
submulziu	5923696
ZM_lll_norms	7138095
nbits2prec64	7494127
cget_dblmat	8418752
addmuliu64_inplace	9582880
submuliu64_inplace	9633716
pari_rint	10798333
rotateG_fast	11548708
update_alpha	11992201
cget_dpevec	13299540
dpe_divz	14079504
dpe_abscmp	14519988
setG2_fast	17031583
addzi	17783848
subzi	18525396
u64toi	19904067
affidpe	20757074
setG_fast	22663000
set_line	24934261
affdpe	25735803
Babai_fast	30207990
rotate	31938405
dblrotate	34646048
cget_dblvec	34997192
dpe_normalize	48117488
dpe_submulz	51709879
dpe_subz	53741047
dpe_mulz	56974205
dpe_normalize0	108583666
dbldotproduct	118244496
itodbl_exp	162604697

Generated by: LCOV version 1.16