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

Generated by: LCOV version 1.16