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 30532-0c728fd268) Lines: 1335 1641 81.4 % Date: 2025-10-23 09:22:47 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654161
Babai_fast	30199885
Babai_heuristic	289747
GS_extraprec	4724640
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4843509
ZM_flatter	626482
ZM_flatter_rank	624468
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606483
ZM_is_lower	1204534
ZM_is_upper	4233652
ZM_lll_norms	7132538
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4104043
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580855
addmulzu2n	271563
addzi	17783940
affdbldpe	3206317
affdpe	25731206
affidpe	20749612
affii_or_copy_gc	1390594
cget_dblmat	8414632
cget_dblvec	34979255
cget_dpemat	3206320
cget_dpevec	13292775
condition_bound	4724640
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118218240
dbldotsquare	2480635
dblrotate	34636158
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515551
dpe_abssmall	1390600
dpe_addmuluz	342913
dpe_addz	1943190
dpe_cmp	5262370
dpe_cmpmul	5262361
dpe_divz	14075072
dpe_muluz	799918
dpe_mulz	56964288
dpe_negz	244422
dpe_normalize	48108500
dpe_normalize0	108560516
dpe_submuluz	412454
dpe_submulz	51702079
dpe_subz	53733331
dperotate	652462
dpetor	94271
drop	1345903
flat	1345904
flattergram_i	2967
fplll	0
fplll_dpe	1603160
fplll_fast	2103662
fplll_flatter	625429
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44560
get_gramschmidt	1098345
gramschmidt_dynprec	2691806
gramschmidt_upper	1336
gsisinv	5192284
incrementalGSgen	168
itodbl_exp	162546732
kerint	42
kerint0	70
lll	1243327
lll_finish	2164363
lll_trivial	771728
lllall	36699
lllallgen	168
lllfp	5367854
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093185
mulshift	318943
nbits2prec64	7486446
pari_rint	10794822
potential	1345904
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31930746
rotateG	443711
rotateG_fast	11545397
setG2_fast	17026653
setG2_heuristic	188352
setG_fast	22655187
setG_heuristic	206374
set_line	24925544
sizered	1345904
spread	5849683
submuliu2n	4196764
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507251
submulziu	5923687
submulzu2n	262549
subzi	18525550
truncexpo	12139
u64toi	19900941
u64toineg	671548
update_alpha	11989325
vectail_inplace	2090138

Generated by: LCOV version 1.16