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 30371-bd27ad7662) Lines: 1335 1641 81.4 % Date: 2025-07-07 09:23:05 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	4246
fplll_heuristic	4246
gc_lll	4835
lllgram	9089
truncexpo	12139
ZC_to_RC	15952
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44553
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	188352
realsqrdotproduct	198160
setG_heuristic	206374
dpe_negz	244438
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	289747
mulshift	318943
dpe_addmuluz	342912
absrsmall2	402705
dpe_submuluz	412446
rotateG	443711
ZM_is_knapsack	606403
ZM_flatter_rank	623979
fplll_flatter	624941
ZM_flatter	625993
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	698128
lll_trivial	771027
dpe_muluz	799909
get_gramschmidt	1097857
realdotproduct	1186355
ZM_is_lower	1204026
lll	1243281
drop	1345178
flat	1345178
potential	1345179
sizered	1345179
affii_or_copy_gc	1390574
dpe_abssmall	1390589
submulshift	1507251
fplll_dpe	1602643
dpe_addz	1943190
vectail_inplace	2089557
fplll_fast	2103084
lll_finish	2163775
dbldotsquare	2480141
gramschmidt_dynprec	2690354
cget_dpemat	3205283
affdbldpe	3205286
mpabscmp	4091252
addmuliu2n	4105645
submuliu2n	4200437
ZM_is_upper	4231695
addmulziu	4580846
Babai_dpe	4653152
GS_extraprec	4723118
condition_bound	4723119
ZM2_lll_norms	4839908
gsisinv	5190751
dpe_cmpmul	5261365
dpe_cmp	5261368
lllfp	5365634
spread	5848060
submulziu	5923656
ZM_lll_norms	7128274
nbits2prec64	7482956
cget_dblmat	8412300
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10793674
rotateG_fast	11543202
update_alpha	11986992
cget_dpevec	13289231
dpe_divz	14073242
dpe_abscmp	14513699
setG2_fast	17022768
addzi	17783978
subzi	18525318
u64toi	19900941
affidpe	20746341
setG_fast	22649900
set_line	24919481
affdpe	25729442
Babai_fast	30192864
rotate	31923984
dblrotate	34629537
cget_dblvec	34969110
dpe_normalize	48102879
dpe_submulz	51697700
dpe_subz	53728888
dpe_mulz	56958957
dpe_normalize0	108547899
dbldotproduct	118193853
itodbl_exp	162586426

Generated by: LCOV version 1.16