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 30425-4669acb345) Lines: 1335 1641 81.4 % Date: 2025-07-30 09:23:31 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4653214
Babai_fast	30202498
Babai_heuristic	288770
GS_extraprec	4723507
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4840192
ZM_flatter	626014
ZM_flatter_rank	624000
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606579
ZM_is_lower	1204039
ZM_is_upper	4231983
ZM_lll_norms	7128760
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4104693
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580803
addmulzu2n	271563
addzi	17783304
affdbldpe	3205318
affdpe	25730019
affidpe	20746994
affii_or_copy_gc	1390556
cget_dblmat	8413066
cget_dblvec	34974866
cget_dpemat	3205320
cget_dpevec	13289511
condition_bound	4723508
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118229583
dbldotsquare	2480324
dblrotate	34640251
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14514363
dpe_abssmall	1390582
dpe_addmuluz	342909
dpe_addz	1943181
dpe_cmp	5261467
dpe_cmpmul	5261462
dpe_divz	14073861
dpe_muluz	799905
dpe_mulz	56962165
dpe_negz	244430
dpe_normalize	48106140
dpe_normalize0	108554922
dpe_submuluz	412447
dpe_submulz	51700833
dpe_subz	53732049
dperotate	652462
dpetor	94271
drop	1345317
flat	1345319
flattergram_i	2967
fplll	0
fplll_dpe	1602661
fplll_fast	2103268
fplll_flatter	624961
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44553
get_gramschmidt	1097871
gramschmidt_dynprec	2690636
gramschmidt_upper	1336
gsisinv	5191136
incrementalGSgen	168
itodbl_exp	162630300
kerint	42
kerint0	70
lll	1243283
lll_finish	2163959
lll_trivial	771022
lllall	36699
lllallgen	168
lllfp	5366053
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4092254
mulshift	318942
nbits2prec64	7483610
pari_rint	10795808
potential	1345319
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31932515
rotateG	443280
rotateG_fast	11546749
setG2_fast	17028456
setG2_heuristic	187610
setG_fast	22656789
setG_heuristic	205626
set_line	24926707
sizered	1345319
spread	5848622
submuliu2n	4197487
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923571
submulzu2n	262549
subzi	18524786
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11990129
vectail_inplace	2089741

Generated by: LCOV version 1.16