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 30482-15ec328664) Lines: 1335 1641 81.4 % Date: 2025-09-07 09:24:11 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654241
Babai_fast	30199340
Babai_heuristic	289747
GS_extraprec	4724775
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4841497
ZM_flatter	626491
ZM_flatter_rank	624477
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606445
ZM_is_lower	1204550
ZM_is_upper	4233699
ZM_lll_norms	7130451
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4108000
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580798
addmulzu2n	271563
addzi	17783263
affdbldpe	3206339
affdpe	25731332
affidpe	20749835
affii_or_copy_gc	1390566
cget_dblmat	8414522
cget_dblvec	34978345
cget_dpemat	3206338
cget_dpevec	13292911
condition_bound	4724775
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118220774
dbldotsquare	2480648
dblrotate	34635960
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515668
dpe_abssmall	1390608
dpe_addmuluz	342913
dpe_addz	1943184
dpe_cmp	5262467
dpe_cmpmul	5262462
dpe_divz	14075197
dpe_muluz	799916
dpe_mulz	56964162
dpe_negz	244428
dpe_normalize	48108256
dpe_normalize0	108560496
dpe_submuluz	412452
dpe_submulz	51701866
dpe_subz	53733048
dperotate	652460
dpetor	94271
drop	1345923
flat	1345922
flattergram_i	2967
fplll	0
fplll_dpe	1603170
fplll_fast	2103634
fplll_flatter	625438
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44560
get_gramschmidt	1098367
gramschmidt_dynprec	2691844
gramschmidt_upper	1336
gsisinv	5192421
incrementalGSgen	168
itodbl_exp	162635587
kerint	42
kerint0	70
lll	1243313
lll_finish	2164355
lll_trivial	771723
lllall	36699
lllallgen	168
lllfp	5367900
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093074
mulshift	318943
nbits2prec64	7486563
pari_rint	10794429
potential	1345924
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31930339
rotateG	443710
rotateG_fast	11545317
setG2_fast	17026357
setG2_heuristic	188352
setG_fast	22655001
setG_heuristic	206374
set_line	24925468
sizered	1345924
spread	5849784
submuliu2n	4201702
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507251
submulziu	5923586
submulzu2n	262549
subzi	18524862
truncexpo	12139
u64toi	19900941
u64toineg	671548
update_alpha	11989109
vectail_inplace	2090133

Generated by: LCOV version 1.16