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 30483-b6b1f87815) Lines: 1335 1641 81.4 % Date: 2025-09-12 09:24:16 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654253
Babai_fast	30202383
Babai_heuristic	288770
GS_extraprec	4724919
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4841570
ZM_flatter	626499
ZM_flatter_rank	624485
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606528
ZM_is_lower	1204545
ZM_is_upper	4233821
ZM_lll_norms	7130579
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104268
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580878
addmulzu2n	271563
addzi	17783754
affdbldpe	3206346
affdpe	25731594
affidpe	20750082
affii_or_copy_gc	1390591
cget_dblmat	8414879
cget_dblvec	34980721
cget_dpemat	3206344
cget_dpevec	13292957
condition_bound	4724919
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118228402
dbldotsquare	2480748
dblrotate	34639029
do_SWAPgen	196
dpeM_diagonal_shallow	20286
dpe_abscmp	14515831
dpe_abssmall	1390602
dpe_addmuluz	342913
dpe_addz	1943191
dpe_cmp	5262469
dpe_cmpmul	5262463
dpe_divz	14075381
dpe_muluz	799918
dpe_mulz	56965292
dpe_negz	244440
dpe_normalize	48109152
dpe_normalize0	108562516
dpe_submuluz	412454
dpe_submulz	51702942
dpe_subz	53734126
dperotate	652460
dpetor	94267
drop	1345984
flat	1345983
flattergram_i	2967
fplll	0
fplll_dpe	1603175
fplll_fast	2103722
fplll_flatter	625446
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1098362
gramschmidt_dynprec	2691966
gramschmidt_upper	1336
gsisinv	5192534
incrementalGSgen	168
itodbl_exp	162613657
kerint	42
kerint0	70
lll	1243315
lll_finish	2164435
lll_trivial	771720
lllall	36699
lllallgen	168
lllfp	5368088
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4093510
mulshift	318942
nbits2prec64	7486829
pari_rint	10795509
potential	1345985
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31931353
rotateG	443279
rotateG_fast	11546333
setG2_fast	17028149
setG2_heuristic	187610
setG_fast	22657078
setG_heuristic	205626
set_line	24927298
sizered	1345984
spread	5849985
submuliu2n	4197063
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923750
submulzu2n	262549
subzi	18525271
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11989755
vectail_inplace	2090214

Generated by: LCOV version 1.16