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 30574-595e4ba651) Lines: 1336 1642 81.4 % Date: 2025-12-18 09:22:54 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656273
Babai_fast	30206730
Babai_heuristic	289747
GS_extraprec	4728159
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4847899
ZM_flatter	626940
ZM_flatter_rank	624926
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606708
ZM_is_lower	1205196
ZM_is_upper	4237175
ZM_lll_norms	7137876
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4107677
addmuliu642n	671548
addmuliu64_inplace	9582880
addmulziu	4580874
addmulzu2n	271563
addzi	17784087
affdbldpe	3207696
affdpe	25735634
affidpe	20756995
affii_or_copy_gc	1390601
cget_dblmat	8418471
cget_dblvec	34995698
cget_dpemat	3207711
cget_dpevec	13299395
condition_bound	4728158
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118242437
dbldotsquare	2481850
dblrotate	34645548
do_SWAPgen	196
dpeM_diagonal_shallow	20294
dpe_abscmp	14519900
dpe_abssmall	1390609
dpe_addmuluz	342913
dpe_addz	1943188
dpe_cmp	5264442
dpe_cmpmul	5264441
dpe_divz	14079425
dpe_muluz	799918
dpe_mulz	56973960
dpe_negz	244428
dpe_normalize	48117240
dpe_normalize0	108583352
dpe_submuluz	412454
dpe_submulz	51709643
dpe_subz	53740842
dperotate	652462
dpetor	94285
drop	1347315
flat	1347316
flattergram_i	2967
fplll	0
fplll_dpe	1603851
fplll_fast	2104624
fplll_flatter	625887
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44559
get_gramschmidt	1099025
gramschmidt_dynprec	2694632
gramschmidt_upper	1336
gsisinv	5196010
incrementalGSgen	168
itodbl_exp	162631917
kerint	42
kerint0	70
lll	1243390
lll_finish	2165334
lll_trivial	771750
lllall	36699
lllallgen	168
lllfp	5372189
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097482
mulshift	318943
nbits2prec64	7493786
pari_rint	10798482
potential	1347315
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31939970
rotateG	443711
rotateG_fast	11548535
setG2_fast	17031199
setG2_heuristic	188352
setG_fast	22662421
setG_heuristic	206374
set_line	24934188
sizered	1347316
spread	5853635
submuliu2n	4201228
submuliu642n	687471
submuliu64_inplace	9633716
submulshift	1507251
submulziu	5923747
submulzu2n	262549
subzi	18525613
truncexpo	12139
u64toi	19904067
u64toineg	671548
update_alpha	11992409
vectail_inplace	2091080

Generated by: LCOV version 1.16