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 30480-572da319a6) Lines: 1335 1641 81.4 % Date: 2025-08-27 09:24:05 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
RgM_flop	0
dbg_flatter	0
dbg_flattergram	0
fplll	0
matkerint0	28
lllgramkerim	35
lllkerim	35
kerint	42
lllgen	42
lllgramgen	42
lllgramkerimgen	42
lllkerimgen	42
qflllgram	63
kerint0	70
incrementalGSgen	168
lllallgen	168
lllgramallgen	168
lllint	183
REDgen	196
do_SWAPgen	196
qflllgram0	245
qflll0	301
pslg	504
ZM_flattergram	961
ZM_flattergram_rank	961
gramschmidt_upper	1336
RgM_Cholesky_dynprec	2967
flattergram_i	2967
ZM_to_RM	4244
fplll_heuristic	4244
gc_lll	4833
lllgram	9089
truncexpo	12138
ZC_to_RC	15945
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44560
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187610
realsqrdotproduct	197413
setG_heuristic	205626
dpe_negz	244420
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288770
mulshift	318942
dpe_addmuluz	342913
absrsmall2	401466
dpe_submuluz	412454
rotateG	443280
ZM_is_knapsack	606390
ZM_flatter_rank	624467
fplll_flatter	625428
ZM_flatter	626481
dperotate	652462
addmuliu642n	671548
u64toineg	671548
submuliu642n	687471
absrsmall	696466
lll_trivial	771715
dpe_muluz	799918
get_gramschmidt	1098340
realdotproduct	1183370
ZM_is_lower	1204521
lll	1243312
flat	1345876
drop	1345877
potential	1345877
sizered	1345878
affii_or_copy_gc	1390583
dpe_abssmall	1390600
submulshift	1507243
fplll_dpe	1603149
dpe_addz	1943187
vectail_inplace	2090044
fplll_fast	2103564
lll_finish	2164264
dbldotsquare	2480787
gramschmidt_dynprec	2691755
cget_dpemat	3206295
affdbldpe	3206296
mpabscmp	4092644
addmuliu2n	4104654
submuliu2n	4198907
ZM_is_upper	4233592
addmulziu	4580837
Babai_dpe	4654135
GS_extraprec	4724593
condition_bound	4724593
ZM2_lll_norms	4841442
gsisinv	5192206
dpe_cmpmul	5262330
dpe_cmp	5262335
lllfp	5367752
spread	5849514
submulziu	5923728
ZM_lll_norms	7130304
nbits2prec64	7486308
cget_dblmat	8414239
addmuliu64_inplace	9581364
submuliu64_inplace	9632106
pari_rint	10793913
rotateG_fast	11543457
update_alpha	11986838
cget_dpevec	13293014
dpe_divz	14074685
dpe_abscmp	14515141
setG2_fast	17023390
addzi	17783673
subzi	18525272
u64toi	19900941
affidpe	20749419
setG_fast	22651377
set_line	24921256
affdpe	25730873
Babai_fast	30194509
rotate	31922626
dblrotate	34630314
cget_dblvec	34976190
dpe_normalize	48105707
dpe_submulz	51699438
dpe_subz	53730617
dpe_mulz	56961635
dpe_normalize0	108554956
dbldotproduct	118198493
itodbl_exp	162570407

Generated by: LCOV version 1.16