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 30365-beea1ff998) Lines: 1335 1641 81.4 % Date: 2025-07-01 09:21:48 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	244445
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	289747
mulshift	318943
dpe_addmuluz	342913
absrsmall2	402705
dpe_submuluz	412447
rotateG	443711
ZM_is_knapsack	606320
ZM_flatter_rank	623987
fplll_flatter	624948
ZM_flatter	626001
dperotate	652460
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	698128
lll_trivial	771023
dpe_muluz	799911
get_gramschmidt	1097867
realdotproduct	1186355
ZM_is_lower	1204032
lll	1243282
drop	1345204
potential	1345205
flat	1345206
sizered	1345206
affii_or_copy_gc	1390572
dpe_abssmall	1390582
submulshift	1507251
fplll_dpe	1602645
dpe_addz	1943185
vectail_inplace	2089484
fplll_fast	2103002
lll_finish	2163704
dbldotsquare	2480133
gramschmidt_dynprec	2690408
affdbldpe	3205288
cget_dpemat	3205303
mpabscmp	4091220
addmuliu2n	4105406
submuliu2n	4199817
ZM_is_upper	4231745
addmulziu	4580857
Babai_dpe	4653161
GS_extraprec	4723194
condition_bound	4723194
ZM2_lll_norms	4840109
gsisinv	5190824
dpe_cmpmul	5261365
dpe_cmp	5261367
lllfp	5365714
spread	5848057
submulziu	5923600
ZM_lll_norms	7128421
nbits2prec64	7483042
cget_dblmat	8411988
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10793074
rotateG_fast	11542726
update_alpha	11986573
cget_dpevec	13289465
dpe_divz	14073045
dpe_abscmp	14513613
setG2_fast	17021912
addzi	17783399
subzi	18524899
u64toi	19900941
affidpe	20746180
setG_fast	22648751
set_line	24918418
affdpe	25729167
Babai_fast	30191437
rotate	31922627
dblrotate	34628155
cget_dblvec	34967865
dpe_normalize	48101777
dpe_submulz	51696590
dpe_subz	53727670
dpe_mulz	56957725
dpe_normalize0	108544954
dbldotproduct	118188803
itodbl_exp	162556688

Generated by: LCOV version 1.16