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 30551-f8501633d1) Lines: 1335 1641 81.4 % Date: 2025-11-20 09:22:21 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654286
Babai_fast	30202725
Babai_heuristic	289747
GS_extraprec	4725169
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4843825
ZM_flatter	626516
ZM_flatter_rank	624502
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606655
ZM_is_lower	1204557
ZM_is_upper	4234050
ZM_lll_norms	7133019
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4104902
addmuliu642n	671548
addmuliu64_inplace	9581970
addmulziu	4580862
addmulzu2n	271563
addzi	17783894
affdbldpe	3206392
affdpe	25731663
affidpe	20750076
affii_or_copy_gc	1390599
cget_dblmat	8415487
cget_dblvec	34982401
cget_dpemat	3206387
cget_dpevec	13293078
condition_bound	4725168
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118229890
dbldotsquare	2480855
dblrotate	34640708
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14515889
dpe_abssmall	1390608
dpe_addmuluz	342913
dpe_addz	1943185
dpe_cmp	5262497
dpe_cmpmul	5262491
dpe_divz	14075431
dpe_muluz	799918
dpe_mulz	56965321
dpe_negz	244439
dpe_normalize	48109243
dpe_normalize0	108562776
dpe_submuluz	412454
dpe_submulz	51702974
dpe_subz	53734164
dperotate	652462
dpetor	94271
drop	1346086
flat	1346088
flattergram_i	2967
fplll	0
fplll_dpe	1603197
fplll_fast	2103877
fplll_flatter	625463
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44559
get_gramschmidt	1098378
gramschmidt_dynprec	2692175
gramschmidt_upper	1336
gsisinv	5192792
incrementalGSgen	168
itodbl_exp	162639723
kerint	42
kerint0	70
lll	1243329
lll_finish	2164575
lll_trivial	771730
lllall	36699
lllallgen	168
lllfp	5368413
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093854
mulshift	318943
nbits2prec64	7487373
pari_rint	10796375
potential	1346087
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31935109
rotateG	443711
rotateG_fast	11546905
setG2_fast	17028759
setG2_heuristic	188352
setG_fast	22658126
setG_heuristic	206374
set_line	24928984
sizered	1346088
spread	5850369
submuliu2n	4197686
submuliu642n	687471
submuliu64_inplace	9632820
submulshift	1507251
submulziu	5923737
submulzu2n	262549
subzi	18525370
truncexpo	12139
u64toi	19902261
u64toineg	671548
update_alpha	11990722
vectail_inplace	2090348

Generated by: LCOV version 1.16