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 30569-8181146aa1) Lines: 1335 1641 81.4 % Date: 2025-12-04 09:22:12 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4656283
Babai_fast	30200392
Babai_heuristic	288770
GS_extraprec	4728307
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15945
ZM2_lll_norms	4848271
ZM_flatter	626961
ZM_flatter_rank	624947
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606582
ZM_is_lower	1205223
ZM_is_upper	4237345
ZM_lll_norms	7138143
ZM_to_RM	4244
absrsmall	696466
absrsmall2	401466
addmuliu2n	4105555
addmuliu642n	671548
addmuliu64_inplace	9582880
addmulziu	4580804
addmulzu2n	271563
addzi	17783397
affdbldpe	3207778
affdpe	25735081
affidpe	20756850
affii_or_copy_gc	1390576
cget_dblmat	8418110
cget_dblvec	34993852
cget_dpemat	3207783
cget_dpevec	13300277
condition_bound	4728307
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118216921
dbldotsquare	2482080
dblrotate	34637978
do_SWAPgen	196
dpeM_diagonal_shallow	20294
dpe_abscmp	14519474
dpe_abssmall	1390584
dpe_addmuluz	342911
dpe_addz	1943181
dpe_cmp	5264459
dpe_cmpmul	5264454
dpe_divz	14078948
dpe_muluz	799916
dpe_mulz	56970479
dpe_negz	244442
dpe_normalize	48113957
dpe_normalize0	108575882
dpe_submuluz	412454
dpe_submulz	51706217
dpe_subz	53737327
dperotate	652462
dpetor	94285
drop	1347385
flat	1347385
flattergram_i	2967
fplll	0
fplll_dpe	1603891
fplll_fast	2104534
fplll_flatter	625908
fplll_heuristic	4244
gc_lll	4833
get_gaussred	44560
get_gramschmidt	1099055
gramschmidt_dynprec	2694765
gramschmidt_upper	1336
gsisinv	5196165
incrementalGSgen	168
itodbl_exp	162600966
kerint	42
kerint0	70
lll	1243390
lll_finish	2165249
lll_trivial	771757
lllall	36699
lllallgen	168
lllfp	5372394
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4097303
mulshift	318942
nbits2prec64	7494088
pari_rint	10797292
potential	1347385
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1183370
realsqrdotproduct	197413
rotate	31930207
rotateG	443280
rotateG_fast	11546005
setG2_fast	17027135
setG2_heuristic	187610
setG_fast	22657938
setG_heuristic	205626
set_line	24929401
sizered	1347385
spread	5853672
submuliu2n	4200083
submuliu642n	687471
submuliu64_inplace	9633716
submulshift	1507243
submulziu	5923660
submulzu2n	262549
subzi	18524920
truncexpo	12138
u64toi	19904067
u64toineg	671548
update_alpha	11989439
vectail_inplace	2090996

Generated by: LCOV version 1.16