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 30316-0578a48613) Lines: 1335 1641 81.4 % Date: 2025-06-02 09:19:41 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	4144
fplll_heuristic	4144
gc_lll	4733
lllgram	9089
truncexpo	12138
ZC_to_RC	15745
dpeM_diagonal_shallow	20168
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44322
RgM_is_square_mat	45828
dpetor	93718
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244167
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317352
dpe_addmuluz	342689
absrsmall2	401359
dpe_submuluz	411957
rotateG	442789
ZM_is_knapsack	605647
ZM_flatter_rank	616292
fplll_flatter	617252
ZM_flatter	618306
dperotate	651480
addmuliu642n	667795
u64toineg	667795
submuliu642n	683874
absrsmall	696359
lll_trivial	770470
dpe_muluz	799197
get_gramschmidt	1082380
lll	1174816
ZM_is_lower	1182183
realdotproduct	1182991
flat	1335593
drop	1335594
potential	1335594
sizered	1335594
affii_or_copy_gc	1388099
dpe_abssmall	1388107
submulshift	1499893
fplll_dpe	1567694
dpe_addz	1942237
vectail_inplace	2054250
fplll_fast	2067904
lll_finish	2128333
dbldotsquare	2439713
gramschmidt_dynprec	2671187
cget_dpemat	3135384
affdbldpe	3135386
mpabscmp	4062910
addmuliu2n	4079889
submuliu2n	4171331
ZM_is_upper	4177852
addmulziu	4577402
Babai_dpe	4585493
GS_extraprec	4688799
condition_bound	4688799
ZM2_lll_norms	4701016
gsisinv	5148630
dpe_cmpmul	5193630
dpe_cmp	5193639
lllfp	5268280
spread	5804959
submulziu	5920181
ZM_lll_norms	6953999
nbits2prec64	7413947
cget_dblmat	8271598
addmuliu64_inplace	9532506
submuliu64_inplace	9584977
pari_rint	10705722
rotateG_fast	11458620
update_alpha	11901580
cget_dpevec	13040143
dpe_divz	13954764
dpe_abscmp	14395449
setG2_fast	16884335
addzi	17776433
subzi	18518061
u64toi	19801357
affidpe	20520006
setG_fast	22437151
set_line	24671583
affdpe	25565333
Babai_fast	29984282
rotate	31707749
dblrotate	34375747
cget_dblvec	34469496
dpe_normalize	47891270
dpe_submulz	51513203
dpe_subz	53543440
dpe_mulz	56706706
dpe_normalize0	108004736
dbldotproduct	117515767
itodbl_exp	161523848

Generated by: LCOV version 1.16