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 30586-ccf601f509) Lines: 1336 1642 81.4 % Date: 2025-12-26 09:21:14 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4655008
Babai_fast	30150301
Babai_heuristic	288770
GS_extraprec	4727639
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847365
ZM_flatter	626834
ZM_flatter_rank	624820
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606405
ZM_is_lower	1205081
ZM_is_upper	4236294
ZM_lll_norms	7136450
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4086975
addmuliu642n	668454
addmuliu64_inplace	9572959
addmulziu	4580769
addmulzu2n	271563
addzi	17783043
affdbldpe	3206751
affdpe	25731365
affidpe	20752171
affii_or_copy_gc	1390397
cget_dblmat	8415345
cget_dblvec	34984090
cget_dpemat	3206723
cget_dpevec	13295331
condition_bound	4727639
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118054315
dbldotsquare	2480927
dblrotate	34566089
do_SWAPgen	196
dpeM_diagonal_shallow	20147
dpe_abscmp	14516938
dpe_abssmall	1390412
dpe_addmuluz	342910
dpe_addz	1943108
dpe_cmp	5263364
dpe_cmpmul	5263361
dpe_divz	14076490
dpe_muluz	799860
dpe_mulz	56967067
dpe_negz	244382
dpe_normalize	48111675
dpe_normalize0	108569413
dpe_submuluz	412410
dpe_submulz	51703793
dpe_subz	53734938
dperotate	652350
dpetor	93801
drop	1347070
flat	1347071
flattergram_i	2967
fplll	0
fplll_dpe	1603372
fplll_fast	2103842
fplll_flatter	625781
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44539
get_gramschmidt	1098808
gramschmidt_dynprec	2694141
gramschmidt_upper	1336
gsisinv	5195376
incrementalGSgen	168
itodbl_exp	162364932
kerint	42
kerint0	70
lll	1243315
lll_finish	2164443
lll_trivial	771685
lllall	36699
lllallgen	168
lllfp	5371249
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4096636
mulshift	317717
nbits2prec64	7492505
pari_rint	10774848
potential	1347070
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31884147
rotateG	443224
rotateG_fast	11522067
setG2_fast	16991322
setG2_heuristic	187610
setG_fast	22619711
setG_heuristic	205626
set_line	24890195
sizered	1347071
spread	5852681
submuliu2n	4178190
submuliu642n	684645
submuliu64_inplace	9623916
submulshift	1501323
submulziu	5923232
submulzu2n	262549
subzi	18524603
truncexpo	12138
u64toi	19881520
u64toineg	668454
update_alpha	11965380
vectail_inplace	2090313

Generated by: LCOV version 1.16