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 30391-f41a6adeb0) Lines: 1335 1641 81.4 % Date: 2025-07-14 09:22:41 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4653277
Babai_fast	30202123
Babai_heuristic	288770
GS_extraprec	4723572
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4840259
ZM_flatter	626020
ZM_flatter_rank	624006
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606564
ZM_is_lower	1204036
ZM_is_upper	4232025
ZM_lll_norms	7128810
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104976
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580855
addmulzu2n	271563
addzi	17783681
affdbldpe	3205311
affdpe	25729922
affidpe	20747139
affii_or_copy_gc	1390582
cget_dblmat	8412992
cget_dblvec	34974483
cget_dpemat	3205323
cget_dpevec	13289563
condition_bound	4723572
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118229717
dbldotsquare	2480323
dblrotate	34639908
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14514389
dpe_abssmall	1390585
dpe_addmuluz	342913
dpe_addz	1943188
dpe_cmp	5261483
dpe_cmpmul	5261483
dpe_divz	14073915
dpe_muluz	799911
dpe_mulz	56962135
dpe_negz	244425
dpe_normalize	48106311
dpe_normalize0	108555157
dpe_submuluz	412447
dpe_submulz	51700839
dpe_subz	53731998
dperotate	652462
dpetor	94271
drop	1345341
flat	1345340
flattergram_i	2967
fplll	0
fplll_dpe	1602658
fplll_fast	2103254
fplll_flatter	624967
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44553
get_gramschmidt	1097869
gramschmidt_dynprec	2690679
gramschmidt_upper	1336
gsisinv	5191180
incrementalGSgen	168
itodbl_exp	162623419
kerint	42
kerint0	70
lll	1243283
lll_finish	2163947
lll_trivial	771020
lllall	36699
lllallgen	168
lllfp	5366125
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4092313
mulshift	318942
nbits2prec64	7483734
pari_rint	10795850
potential	1345340
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31932242
rotateG	443280
rotateG_fast	11546675
setG2_fast	17028328
setG2_heuristic	187610
setG_fast	22656491
setG_heuristic	205626
set_line	24926533
sizered	1345341
spread	5848666
submuliu2n	4197484
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923639
submulzu2n	262549
subzi	18525206
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11990035
vectail_inplace	2089730

Generated by: LCOV version 1.16