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 30552-d1d0643eee) Lines: 1335 1641 81.4 % Date: 2025-11-24 09:22:36 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654037
Babai_fast	30195589
Babai_heuristic	288770
GS_extraprec	4724599
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843380
ZM_flatter	626465
ZM_flatter_rank	624451
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606477
ZM_is_lower	1204500
ZM_is_upper	4233532
ZM_lll_norms	7132332
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4103171
addmuliu642n	671548
addmuliu64_inplace	9581970
addmulziu	4580860
addmulzu2n	271563
addzi	17783921
affdbldpe	3206252
affdpe	25730524
affidpe	20748865
affii_or_copy_gc	1390591
cget_dblmat	8414508
cget_dblvec	34976809
cget_dpemat	3206261
cget_dpevec	13292463
condition_bound	4724600
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118200180
dbldotsquare	2480641
dblrotate	34632223
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14514894
dpe_abssmall	1390608
dpe_addmuluz	342913
dpe_addz	1943187
dpe_cmp	5262253
dpe_cmpmul	5262247
dpe_divz	14074448
dpe_muluz	799918
dpe_mulz	56960835
dpe_negz	244417
dpe_normalize	48105079
dpe_normalize0	108553360
dpe_submuluz	412454
dpe_submulz	51698704
dpe_subz	53729917
dperotate	652460
dpetor	94271
drop	1345859
flat	1345859
flattergram_i	2967
fplll	0
fplll_dpe	1603128
fplll_fast	2103635
fplll_flatter	625412
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1098321
gramschmidt_dynprec	2691719
gramschmidt_upper	1336
gsisinv	5192217
incrementalGSgen	168
itodbl_exp	162590137
kerint	42
kerint0	70
lll	1243328
lll_finish	2164342
lll_trivial	771730
lllall	36699
lllallgen	168
lllfp	5367724
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4092723
mulshift	318942
nbits2prec64	7486277
pari_rint	10794393
potential	1345860
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31924496
rotateG	443279
rotateG_fast	11544074
setG2_fast	17024232
setG2_heuristic	187610
setG_fast	22652450
setG_heuristic	205626
set_line	24922769
sizered	1345860
spread	5849611
submuliu2n	4196032
submuliu642n	687471
submuliu64_inplace	9632820
submulshift	1507243
submulziu	5923742
submulzu2n	262549
subzi	18525270
truncexpo	12138
u64toi	19902261
u64toineg	671548
update_alpha	11987459
vectail_inplace	2090113

Generated by: LCOV version 1.16