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 30072-2ccdc2326c) Lines: 1335 1641 81.4 % Date: 2025-03-12 09:19:58 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	4144
fplll_heuristic	4144
gc_lll	4733
lllgram	9089
truncexpo	12138
ZC_to_RC	15745
dpeM_diagonal_shallow	20294
RgM_flip	34904
lllgramint	36439
lllall	36699
get_gaussred	44322
RgM_is_square_mat	45828
dpetor	94018
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244162
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317383
dpe_addmuluz	342689
absrsmall2	401359
dpe_submuluz	411963
rotateG	442797
ZM_is_knapsack	605843
ZM_flatter_rank	616402
fplll_flatter	617363
ZM_flatter	618416
dperotate	651496
addmuliu642n	667961
u64toineg	667961
submuliu642n	684017
absrsmall	696359
lll_trivial	770157
dpe_muluz	799202
get_gramschmidt	1082685
lll	1174907
ZM_is_lower	1182397
realdotproduct	1182991
drop	1335867
flat	1335867
potential	1335867
sizered	1335867
affii_or_copy_gc	1388065
dpe_abssmall	1388074
submulshift	1500202
fplll_dpe	1568219
dpe_addz	1942238
vectail_inplace	2054972
fplll_fast	2068651
lll_finish	2129154
dbldotsquare	2440724
gramschmidt_dynprec	2671733
affdbldpe	3136436
cget_dpemat	3136440
mpabscmp	4064136
addmuliu2n	4084009
submuliu2n	4175202
ZM_is_upper	4178844
addmulziu	4577424
Babai_dpe	4586600
GS_extraprec	4689544
condition_bound	4689544
ZM2_lll_norms	4701618
gsisinv	5149569
dpe_cmpmul	5194552
dpe_cmp	5194559
lllfp	5269281
spread	5806101
submulziu	5920100
ZM_lll_norms	6954978
nbits2prec64	7415432
cget_dblmat	8274582
addmuliu64_inplace	9535090
submuliu64_inplace	9587479
pari_rint	10719364
rotateG_fast	11472743
update_alpha	11915567
cget_dpevec	13044429
dpe_divz	13957054
dpe_abscmp	14397719
setG2_fast	16903092
addzi	17775886
subzi	18517513
u64toi	19806586
affidpe	20524186
setG_fast	22458447
set_line	24694316
affdpe	25567398
Babai_fast	30008707
rotate	31739896
dblrotate	34418079
cget_dblvec	34483051
dpe_normalize	47898045
dpe_submulz	51518705
dpe_subz	53548925
dpe_mulz	56713128
dpe_normalize0	108020563
dbldotproduct	117590805
itodbl_exp	161660334

Generated by: LCOV version 1.16