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

Generated by: LCOV version 1.16