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 30367-364c17a628) Lines: 1335 1641 81.4 % Date: 2025-07-03 09:21:30 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4653234
Babai_fast	30199258
Babai_heuristic	288770
GS_extraprec	4723466
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4840316
ZM_flatter	626020
ZM_flatter_rank	624006
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606413
ZM_is_lower	1204044
ZM_is_upper	4231962
ZM_lll_norms	7128726
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4107331
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580864
addmulzu2n	271563
addzi	17783927
affdbldpe	3205323
affdpe	25729876
affidpe	20746863
affii_or_copy_gc	1390577
cget_dblmat	8412420
cget_dblvec	34970899
cget_dpemat	3205280
cget_dpevec	13289544
condition_bound	4723466
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118219106
dbldotsquare	2480172
dblrotate	34636520
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14514182
dpe_abssmall	1390591
dpe_addmuluz	342913
dpe_addz	1943189
dpe_cmp	5261441
dpe_cmpmul	5261439
dpe_divz	14073700
dpe_muluz	799907
dpe_mulz	56961405
dpe_negz	244438
dpe_normalize	48105364
dpe_normalize0	108553166
dpe_submuluz	412444
dpe_submulz	51700118
dpe_subz	53731294
dperotate	652460
dpetor	94271
drop	1345299
flat	1345302
flattergram_i	2967
fplll	0
fplll_dpe	1602664
fplll_fast	2103110
fplll_flatter	624967
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44553
get_gramschmidt	1097879
gramschmidt_dynprec	2690602
gramschmidt_upper	1336
gsisinv	5191093
incrementalGSgen	168
itodbl_exp	162585716
kerint	42
kerint0	70
lll	1243282
lll_finish	2163806
lll_trivial	771021
lllall	36699
lllallgen	168
lllfp	5366002
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4091850
mulshift	318942
nbits2prec64	7483511
pari_rint	10794522
potential	1345300
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31928874
rotateG	443280
rotateG_fast	11545509
setG2_fast	17026527
setG2_heuristic	187610
setG_fast	22653935
setG_heuristic	205626
set_line	24923677
sizered	1345301
spread	5848414
submuliu2n	4200968
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507243
submulziu	5923660
submulzu2n	262549
subzi	18525446
truncexpo	12138
u64toi	19900941
u64toineg	671548
update_alpha	11988948
vectail_inplace	2089585

Generated by: LCOV version 1.16