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 30106-3f17b77578) Lines: 1335 1641 81.4 % Date: 2025-03-31 09:19:50 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	20147
RgM_flip	34904
lllgramint	36439
lllall	36699
get_gaussred	44315
RgM_is_square_mat	45828
dpetor	93701
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244179
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	317357
dpe_addmuluz	342689
absrsmall2	401359
dpe_submuluz	411956
rotateG	442783
ZM_is_knapsack	605878
ZM_flatter_rank	616335
fplll_flatter	617296
ZM_flatter	618349
dperotate	651468
addmuliu642n	667843
u64toineg	667843
submuliu642n	683910
absrsmall	696359
lll_trivial	770049
dpe_muluz	799196
get_gramschmidt	1082385
lll	1174801
ZM_is_lower	1182188
realdotproduct	1182991
drop	1335791
flat	1335791
potential	1335792
sizered	1335792
affii_or_copy_gc	1388079
dpe_abssmall	1388090
submulshift	1499977
fplll_dpe	1567638
dpe_addz	1942236
vectail_inplace	2054425
fplll_fast	2068100
lll_finish	2128489
dbldotsquare	2439864
gramschmidt_dynprec	2671582
affdbldpe	3135271
cget_dpemat	3135273
mpabscmp	4063898
addmuliu2n	4085336
submuliu2n	4177728
ZM_is_upper	4178211
addmulziu	4577368
Babai_dpe	4585483
GS_extraprec	4689466
condition_bound	4689466
ZM2_lll_norms	4701342
gsisinv	5149264
dpe_cmpmul	5193651
dpe_cmp	5193658
lllfp	5268843
spread	5805823
submulziu	5920065
ZM_lll_norms	6954012
nbits2prec64	7414880
cget_dblmat	8272391
addmuliu64_inplace	9532764
submuliu64_inplace	9585270
pari_rint	10708434
rotateG_fast	11462051
update_alpha	11904994
cget_dpevec	13039872
dpe_divz	13955172
dpe_abscmp	14395869
setG2_fast	16890179
addzi	17776217
subzi	18517808
u64toi	19801944
affidpe	20520286
setG_fast	22444134
set_line	24678779
affdpe	25565057
Babai_fast	29993453
rotate	31718095
dblrotate	34386111
cget_dblvec	34474084
dpe_normalize	47894328
dpe_submulz	51515666
dpe_subz	53545895
dpe_mulz	56709213
dpe_normalize0	108011181
dbldotproduct	117552206
itodbl_exp	161572400

Generated by: LCOV version 1.16