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 30582-6e9af8ee1d) Lines: 1336 1642 81.4 % Date: 2025-12-20 09:23:49 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656276
Babai_fast	30184890
Babai_heuristic	289747
GS_extraprec	4728436
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4848157
ZM_flatter	626964
ZM_flatter_rank	624950
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606780
ZM_is_lower	1205149
ZM_is_upper	4237314
ZM_lll_norms	7138151
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4097894
addmuliu642n	670410
addmuliu64_inplace	9578590
addmulziu	4580855
addmulzu2n	271563
addzi	17784076
affdbldpe	3207635
affdpe	25736543
affidpe	20757185
affii_or_copy_gc	1390712
cget_dblmat	8418495
cget_dblvec	34997090
cget_dpemat	3207637
cget_dpevec	13299071
condition_bound	4728436
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118165695
dbldotsquare	2481785
dblrotate	34611240
do_SWAPgen	196
dpeM_diagonal_shallow	20279
dpe_abscmp	14520212
dpe_abssmall	1390725
dpe_addmuluz	342913
dpe_addz	1943206
dpe_cmp	5264459
dpe_cmpmul	5264454
dpe_divz	14079737
dpe_muluz	799925
dpe_mulz	56975107
dpe_negz	244440
dpe_normalize	48117807
dpe_normalize0	108584200
dpe_submuluz	412461
dpe_submulz	51710785
dpe_subz	53742015
dperotate	652516
dpetor	94227
drop	1347419
flat	1347420
flattergram_i	2967
fplll	0
fplll_dpe	1603820
fplll_fast	2104627
fplll_flatter	625911
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44580
get_gramschmidt	1098980
gramschmidt_dynprec	2694839
gramschmidt_upper	1336
gsisinv	5196221
incrementalGSgen	168
itodbl_exp	162516332
kerint	42
kerint0	70
lll	1243356
lll_finish	2165369
lll_trivial	771727
lllall	36699
lllallgen	168
lllfp	5372456
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4098094
mulshift	318483
nbits2prec64	7494187
pari_rint	10787449
potential	1347419
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31917134
rotateG	443738
rotateG_fast	11537118
setG2_fast	17014164
setG2_heuristic	188352
setG_fast	22645166
setG_heuristic	206374
set_line	24916443
sizered	1347420
spread	5853941
submuliu2n	4187338
submuliu642n	686221
submuliu64_inplace	9629660
submulshift	1504863
submulziu	5923862
submulzu2n	262549
subzi	18525583
truncexpo	12139
u64toi	19894471
u64toineg	670410
update_alpha	11980996
vectail_inplace	2091129

Generated by: LCOV version 1.16