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 30587-f85873d515) Lines: 1336 1642 81.4 % Date: 2025-12-27 09:21:13 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654953
Babai_fast	30147318
Babai_heuristic	288770
GS_extraprec	4727727
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847590
ZM_flatter	626842
ZM_flatter_rank	624827
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606306
ZM_is_lower	1205088
ZM_is_upper	4236384
ZM_lll_norms	7136572
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4090631
addmuliu642n	668454
addmuliu64_inplace	9572959
addmulziu	4580812
addmulzu2n	271563
addzi	17783209
affdbldpe	3206744
affdpe	25730997
affidpe	20751764
affii_or_copy_gc	1390393
cget_dblmat	8414935
cget_dblvec	34981251
cget_dpemat	3206749
cget_dpevec	13295326
condition_bound	4727727
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118048032
dbldotsquare	2480844
dblrotate	34562616
do_SWAPgen	196
dpeM_diagonal_shallow	20147
dpe_abscmp	14516624
dpe_abssmall	1390415
dpe_addmuluz	342913
dpe_addz	1943124
dpe_cmp	5263327
dpe_cmpmul	5263321
dpe_divz	14076149
dpe_muluz	799870
dpe_mulz	56965575
dpe_negz	244387
dpe_normalize	48110258
dpe_normalize0	108565858
dpe_submuluz	412408
dpe_submulz	51702412
dpe_subz	53733503
dperotate	652346
dpetor	93802
drop	1347108
flat	1347108
flattergram_i	2967
fplll	0
fplll_dpe	1603373
fplll_fast	2103739
fplll_flatter	625788
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44536
get_gramschmidt	1098815
gramschmidt_dynprec	2694215
gramschmidt_upper	1336
gsisinv	5195469
incrementalGSgen	168
itodbl_exp	162391137
kerint	42
kerint0	70
lll	1243315
lll_finish	2164353
lll_trivial	771687
lllall	36699
lllallgen	168
lllfp	5371369
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4096478
mulshift	317717
nbits2prec64	7492667
pari_rint	10773517
potential	1347109
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31880595
rotateG	443222
rotateG_fast	11520904
setG2_fast	16989218
setG2_heuristic	187610
setG_fast	22617533
setG_heuristic	205626
set_line	24888454
sizered	1347108
spread	5852668
submuliu2n	4182864
submuliu642n	684645
submuliu64_inplace	9623916
submulshift	1501323
submulziu	5923193
submulzu2n	262549
subzi	18524676
truncexpo	12138
u64toi	19881520
u64toineg	668454
update_alpha	11964177
vectail_inplace	2090225

Generated by: LCOV version 1.16