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: 2025-12-29 09:21:39 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4654938
Babai_fast	30149074
Babai_heuristic	288770
GS_extraprec	4727314
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847130
ZM_flatter	626801
ZM_flatter_rank	624787
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606359
ZM_is_lower	1205062
ZM_is_upper	4236087
ZM_lll_norms	7136120
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4087327
addmuliu642n	668454
addmuliu64_inplace	9572959
addmulziu	4580801
addmulzu2n	271563
addzi	17783093
affdbldpe	3206710
affdpe	25731046
affidpe	20751840
affii_or_copy_gc	1390415
cget_dblmat	8415090
cget_dblvec	34982647
cget_dpemat	3206711
cget_dpevec	13295166
condition_bound	4727315
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118051210
dbldotsquare	2480827
dblrotate	34564528
do_SWAPgen	196
dpeM_diagonal_shallow	20147
dpe_abscmp	14516731
dpe_abssmall	1390432
dpe_addmuluz	342913
dpe_addz	1943128
dpe_cmp	5263278
dpe_cmpmul	5263266
dpe_divz	14076298
dpe_muluz	799875
dpe_mulz	56966581
dpe_negz	244369
dpe_normalize	48111345
dpe_normalize0	108568689
dpe_submuluz	412411
dpe_submulz	51703441
dpe_subz	53734535
dperotate	652350
dpetor	93802
drop	1346970
flat	1346971
flattergram_i	2967
fplll	0
fplll_dpe	1603356
fplll_fast	2103774
fplll_flatter	625748
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44539
get_gramschmidt	1098792
gramschmidt_dynprec	2693942
gramschmidt_upper	1336
gsisinv	5195065
incrementalGSgen	168
itodbl_exp	162374866
kerint	42
kerint0	70
lll	1243315
lll_finish	2164378
lll_trivial	771689
lllall	36699
lllallgen	168
lllfp	5370955
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4096264
mulshift	317717
nbits2prec64	7492026
pari_rint	10774241
potential	1346970
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31882549
rotateG	443224
rotateG_fast	11521532
setG2_fast	16990623
setG2_heuristic	187610
setG_fast	22618824
setG_heuristic	205626
set_line	24889502
sizered	1346971
spread	5852326
submuliu2n	4178391
submuliu642n	684645
submuliu64_inplace	9623916
submulshift	1501323
submulziu	5923336
submulzu2n	262549
subzi	18524663
truncexpo	12138
u64toi	19881520
u64toineg	668454
update_alpha	11964844
vectail_inplace	2090252

Generated by: LCOV version 1.16