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 30370-b9c4b6d044) Lines: 1335 1641 81.4 % Date: 2025-07-05 09:22:59 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	20286
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44553
RgM_is_square_mat	45828
dpetor	94269
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244444
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412447
rotateG	443280
ZM_is_knapsack	606499
ZM_flatter_rank	623991
fplll_flatter	624952
ZM_flatter	626005
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771023
dpe_muluz	799911
get_gramschmidt	1097875
realdotproduct	1183370
ZM_is_lower	1204041
lll	1243282
drop	1345229
potential	1345230
sizered	1345230
flat	1345231
affii_or_copy_gc	1390589
dpe_abssmall	1390595
submulshift	1507243
fplll_dpe	1602665
dpe_addz	1943186
vectail_inplace	2089665
fplll_fast	2103191
lll_finish	2163885
dbldotsquare	2480382
gramschmidt_dynprec	2690461
affdbldpe	3205329
cget_dpemat	3205333
mpabscmp	4091539
addmuliu2n	4105660
submuliu2n	4199779
ZM_is_upper	4231810
addmulziu	4580855
Babai_dpe	4653211
GS_extraprec	4723300
condition_bound	4723300
ZM2_lll_norms	4839997
gsisinv	5190936
dpe_cmpmul	5261440
dpe_cmp	5261446
lllfp	5365795
spread	5848348
submulziu	5923609
ZM_lll_norms	7128504
nbits2prec64	7483179
cget_dblmat	8412742
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10794876
rotateG_fast	11544285
update_alpha	11987687
cget_dpevec	13289786
dpe_divz	14073488
dpe_abscmp	14513945
setG2_fast	17024426
addzi	17783981
subzi	18525360
u64toi	19900941
affidpe	20746793
setG_fast	22651881
set_line	24921757
affdpe	25729665
Babai_fast	30195800
rotate	31925126
dblrotate	34632794
cget_dblvec	34971711
dpe_normalize	48103541
dpe_submulz	51698239
dpe_subz	53729432
dpe_mulz	56959538
dpe_normalize0	108549313
dbldotproduct	118203143
itodbl_exp	162591246

Generated by: LCOV version 1.16