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 30550-07450a7a86) Lines: 1335 1641 81.4 % Date: 2025-11-17 09:22:41 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654199
Babai_fast	30197292
Babai_heuristic	288770
GS_extraprec	4724768
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843496
ZM_flatter	626489
ZM_flatter_rank	624475
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606538
ZM_is_lower	1204549
ZM_is_upper	4233728
ZM_lll_norms	7132580
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4102692
addmuliu642n	671548
addmuliu64_inplace	9581970
addmulziu	4580842
addmulzu2n	271563
addzi	17783737
affdbldpe	3206339
affdpe	25731188
affidpe	20749604
affii_or_copy_gc	1390588
cget_dblmat	8414911
cget_dblvec	34979050
cget_dpemat	3206348
cget_dpevec	13293153
condition_bound	4724768
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118205163
dbldotsquare	2480856
dblrotate	34634682
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515371
dpe_abssmall	1390601
dpe_addmuluz	342913
dpe_addz	1943183
dpe_cmp	5262412
dpe_cmpmul	5262407
dpe_divz	14074914
dpe_muluz	799918
dpe_mulz	56962544
dpe_negz	244421
dpe_normalize	48106438
dpe_normalize0	108556505
dpe_submuluz	412454
dpe_submulz	51700243
dpe_subz	53731453
dperotate	652462
dpetor	94271
drop	1345933
flat	1345932
flattergram_i	2967
fplll	0
fplll_dpe	1603171
fplll_fast	2103735
fplll_flatter	625436
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1098363
gramschmidt_dynprec	2691866
gramschmidt_upper	1336
gsisinv	5192405
incrementalGSgen	168
itodbl_exp	162585513
kerint	42
kerint0	70
lll	1243327
lll_finish	2164437
lll_trivial	771735
lllall	36699
lllallgen	168
lllfp	5367955
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093031
mulshift	318942
nbits2prec64	7486641
pari_rint	10796105
potential	1345934
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31926962
rotateG	443280
rotateG_fast	11544878
setG2_fast	17025601
setG2_heuristic	187610
setG_fast	22654156
setG_heuristic	205626
set_line	24924593
sizered	1345934
spread	5849864
submuliu2n	4195891
submuliu642n	687471
submuliu64_inplace	9632820
submulshift	1507243
submulziu	5923713
submulzu2n	262549
subzi	18525249
truncexpo	12138
u64toi	19902261
u64toineg	671548
update_alpha	11988310
vectail_inplace	2090212

Generated by: LCOV version 1.16