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 30571-c0dfe82732) Lines: 1336 1642 81.4 % Date: 2025-12-09 09:22:05 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656248
Babai_fast	30206780
Babai_heuristic	288770
GS_extraprec	4728209
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4848067
ZM_flatter	626942
ZM_flatter_rank	624928
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606667
ZM_is_lower	1205209
ZM_is_upper	4237229
ZM_lll_norms	7137996
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104935
addmuliu642n	671548
addmuliu64_inplace	9582880
addmulziu	4580774
addmulzu2n	271563
addzi	17783390
affdbldpe	3207733
affdpe	25735351
affidpe	20756800
affii_or_copy_gc	1390570
cget_dblmat	8418362
cget_dblvec	34995900
cget_dpemat	3207748
cget_dpevec	13299497
condition_bound	4728209
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118243515
dbldotsquare	2481821
dblrotate	34644710
do_SWAPgen	196
dpeM_diagonal_shallow	20294
dpe_abscmp	14519790
dpe_abssmall	1390600
dpe_addmuluz	342913
dpe_addz	1943191
dpe_cmp	5264439
dpe_cmpmul	5264425
dpe_divz	14079270
dpe_muluz	799911
dpe_mulz	56973014
dpe_negz	244420
dpe_normalize	48116697
dpe_normalize0	108581578
dpe_submuluz	412453
dpe_submulz	51708860
dpe_subz	53739948
dperotate	652460
dpetor	94285
drop	1347336
flat	1347338
flattergram_i	2967
fplll	0
fplll_dpe	1603868
fplll_fast	2104596
fplll_flatter	625889
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1099041
gramschmidt_dynprec	2694676
gramschmidt_upper	1336
gsisinv	5196071
incrementalGSgen	168
itodbl_exp	162633628
kerint	42
kerint0	70
lll	1243392
lll_finish	2165301
lll_trivial	771757
lllall	36699
lllallgen	168
lllfp	5372258
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097614
mulshift	318942
nbits2prec64	7493905
pari_rint	10798066
potential	1347335
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31936966
rotateG	443279
rotateG_fast	11548257
setG2_fast	17030963
setG2_heuristic	187610
setG_fast	22662350
setG_heuristic	205626
set_line	24933709
sizered	1347338
spread	5853645
submuliu2n	4197404
submuliu642n	687471
submuliu64_inplace	9633716
submulshift	1507243
submulziu	5923518
submulzu2n	262549
subzi	18525032
truncexpo	12138
u64toi	19904067
u64toineg	671548
update_alpha	11991673
vectail_inplace	2091050

Generated by: LCOV version 1.16