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 30549-267e77144f) Lines: 1335 1641 81.4 % Date: 2025-11-16 09:22:34 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654256
Babai_fast	30200757
Babai_heuristic	288770
GS_extraprec	4724995
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34917
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4843828
ZM_flatter	626512
ZM_flatter_rank	624498
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606480
ZM_is_lower	1204549
ZM_is_upper	4233878
ZM_lll_norms	7132862
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104555
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580834
addmulzu2n	271563
addzi	17784012
affdbldpe	3206359
affdpe	25731661
affidpe	20750155
affii_or_copy_gc	1390587
cget_dblmat	8414675
cget_dblvec	34980391
cget_dpemat	3206359
cget_dpevec	13293209
condition_bound	4724995
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118222368
dbldotsquare	2480819
dblrotate	34637234
do_SWAPgen	196
dpeM_diagonal_shallow	20286
dpe_abscmp	14515834
dpe_abssmall	1390603
dpe_addmuluz	342913
dpe_addz	1943188
dpe_cmp	5262469
dpe_cmpmul	5262467
dpe_divz	14075383
dpe_muluz	799918
dpe_mulz	56965468
dpe_negz	244437
dpe_normalize	48109234
dpe_normalize0	108562697
dpe_submuluz	412454
dpe_submulz	51703102
dpe_subz	53734304
dperotate	652462
dpetor	94269
drop	1346006
flat	1346006
flattergram_i	2967
fplll	0
fplll_dpe	1603181
fplll_fast	2103679
fplll_flatter	625459
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44559
get_gramschmidt	1098364
gramschmidt_dynprec	2692012
gramschmidt_upper	1336
gsisinv	5192600
incrementalGSgen	168
itodbl_exp	162608765
kerint	42
kerint0	70
lll	1243328
lll_finish	2164379
lll_trivial	771732
lllall	36699
lllallgen	168
lllfp	5368169
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093513
mulshift	318942
nbits2prec64	7486882
pari_rint	10794785
potential	1346005
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31929535
rotateG	443280
rotateG_fast	11545745
setG2_fast	17026869
setG2_heuristic	187610
setG_fast	22655890
setG_heuristic	205626
set_line	24926109
sizered	1346005
spread	5850003
submuliu2n	4196798
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923687
submulzu2n	262549
subzi	18525448
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11989158
vectail_inplace	2090166

Generated by: LCOV version 1.16