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 30584-b9873745ba) Lines: 1336 1642 81.4 % Date: 2025-12-21 09:21:02 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4655003
Babai_fast	30148052
Babai_heuristic	288770
GS_extraprec	4727628
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4847589
ZM_flatter	626840
ZM_flatter_rank	624826
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606298
ZM_is_lower	1205093
ZM_is_upper	4236283
ZM_lll_norms	7136572
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4090080
addmuliu642n	668454
addmuliu64_inplace	9573025
addmulziu	4580754
addmulzu2n	271563
addzi	17783128
affdbldpe	3206764
affdpe	25731177
affidpe	20752070
affii_or_copy_gc	1390391
cget_dblmat	8414941
cget_dblvec	34981560
cget_dpemat	3206777
cget_dpevec	13295586
condition_bound	4727628
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118049573
dbldotsquare	2480875
dblrotate	34564189
do_SWAPgen	196
dpeM_diagonal_shallow	20146
dpe_abscmp	14516784
dpe_abssmall	1390414
dpe_addmuluz	342913
dpe_addz	1943118
dpe_cmp	5263360
dpe_cmpmul	5263358
dpe_divz	14076323
dpe_muluz	799872
dpe_mulz	56966268
dpe_negz	244391
dpe_normalize	48110864
dpe_normalize0	108567689
dpe_submuluz	412410
dpe_submulz	51703051
dpe_subz	53734161
dperotate	652349
dpetor	93800
drop	1347054
flat	1347056
flattergram_i	2967
fplll	0
fplll_dpe	1603378
fplll_fast	2103741
fplll_flatter	625787
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44538
get_gramschmidt	1098819
gramschmidt_dynprec	2694111
gramschmidt_upper	1336
gsisinv	5195373
incrementalGSgen	168
itodbl_exp	162382639
kerint	42
kerint0	70
lll	1243320
lll_finish	2164350
lll_trivial	771690
lllall	36699
lllallgen	168
lllfp	5371206
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4096328
mulshift	317717
nbits2prec64	7492499
pari_rint	10774339
potential	1347054
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31882229
rotateG	443224
rotateG_fast	11521431
setG2_fast	16990339
setG2_heuristic	187610
setG_fast	22618410
setG_heuristic	205626
set_line	24889062
sizered	1347056
spread	5852568
submuliu2n	4182127
submuliu642n	684645
submuliu64_inplace	9624052
submulshift	1501323
submulziu	5923227
submulzu2n	262549
subzi	18524686
truncexpo	12138
u64toi	19881722
u64toineg	668454
update_alpha	11964734
vectail_inplace	2090225

Generated by: LCOV version 1.16