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 30585-4c42182400) Lines: 1336 1642 81.4 % Date: 2025-12-23 09:21:19 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654988
Babai_fast	30142731
Babai_heuristic	288770
GS_extraprec	4727807
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847771
ZM_flatter	626848
ZM_flatter_rank	624834
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606291
ZM_is_lower	1205100
ZM_is_upper	4236411
ZM_lll_norms	7136734
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4087760
addmuliu642n	668454
addmuliu64_inplace	9573025
addmulziu	4580799
addmulzu2n	271563
addzi	17783288
affdbldpe	3206793
affdpe	25730807
affidpe	20751738
affii_or_copy_gc	1390411
cget_dblmat	8414972
cget_dblvec	34980391
cget_dpemat	3206792
cget_dpevec	13295673
condition_bound	4727807
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118024721
dbldotsquare	2480963
dblrotate	34557399
do_SWAPgen	196
dpeM_diagonal_shallow	20147
dpe_abscmp	14516376
dpe_abssmall	1390418
dpe_addmuluz	342912
dpe_addz	1943126
dpe_cmp	5263334
dpe_cmpmul	5263331
dpe_divz	14075934
dpe_muluz	799872
dpe_mulz	56963721
dpe_negz	244403
dpe_normalize	48108366
dpe_normalize0	108562174
dpe_submuluz	412412
dpe_submulz	51700515
dpe_subz	53731677
dperotate	652350
dpetor	93800
drop	1347114
flat	1347116
flattergram_i	2967
fplll	0
fplll_dpe	1603398
fplll_fast	2103751
fplll_flatter	625795
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44538
get_gramschmidt	1098828
gramschmidt_dynprec	2694230
gramschmidt_upper	1336
gsisinv	5195548
incrementalGSgen	168
itodbl_exp	162325356
kerint	42
kerint0	70
lll	1243322
lll_finish	2164349
lll_trivial	771686
lllall	36699
lllallgen	168
lllfp	5371391
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4096267
mulshift	317717
nbits2prec64	7492753
pari_rint	10773224
potential	1347114
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31875512
rotateG	443224
rotateG_fast	11519170
setG2_fast	16986701
setG2_heuristic	187610
setG_fast	22614208
setG_heuristic	205626
set_line	24884385
sizered	1347115
spread	5852739
submuliu2n	4180384
submuliu642n	684645
submuliu64_inplace	9624052
submulshift	1501323
submulziu	5923330
submulzu2n	262549
subzi	18524766
truncexpo	12138
u64toi	19881722
u64toineg	668454
update_alpha	11962519
vectail_inplace	2090219

Generated by: LCOV version 1.16