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 30365-beea1ff998) Lines: 1335 1641 81.4 % Date: 2025-07-01 09:21:48 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4653161
Babai_fast	30191437
Babai_heuristic	289747
GS_extraprec	4723194
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15952
ZM2_lll_norms	4840109
ZM_flatter	626001
ZM_flatter_rank	623987
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606320
ZM_is_lower	1204032
ZM_is_upper	4231745
ZM_lll_norms	7128421
ZM_to_RM	4246
absrsmall	698128
absrsmall2	402705
addmuliu2n	4105406
addmuliu642n	671548
addmuliu64_inplace	9581364
addmulziu	4580857
addmulzu2n	271563
addzi	17783399
affdbldpe	3205288
affdpe	25729167
affidpe	20746180
affii_or_copy_gc	1390572
cget_dblmat	8411988
cget_dblvec	34967865
cget_dpemat	3205303
cget_dpevec	13289465
condition_bound	4723194
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118188803
dbldotsquare	2480133
dblrotate	34628155
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14513613
dpe_abssmall	1390582
dpe_addmuluz	342913
dpe_addz	1943185
dpe_cmp	5261367
dpe_cmpmul	5261365
dpe_divz	14073045
dpe_muluz	799911
dpe_mulz	56957725
dpe_negz	244445
dpe_normalize	48101777
dpe_normalize0	108544954
dpe_submuluz	412447
dpe_submulz	51696590
dpe_subz	53727670
dperotate	652460
dpetor	94271
drop	1345204
flat	1345206
flattergram_i	2967
fplll	0
fplll_dpe	1602645
fplll_fast	2103002
fplll_flatter	624948
fplll_heuristic	4246
gc_lll	4835
get_gaussred	44553
get_gramschmidt	1097867
gramschmidt_dynprec	2690408
gramschmidt_upper	1336
gsisinv	5190824
incrementalGSgen	168
itodbl_exp	162556688
kerint	42
kerint0	70
lll	1243282
lll_finish	2163704
lll_trivial	771023
lllall	36699
lllallgen	168
lllfp	5365714
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4091220
mulshift	318943
nbits2prec64	7483042
pari_rint	10793074
potential	1345205
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1186355
realsqrdotproduct	198160
rotate	31922627
rotateG	443711
rotateG_fast	11542726
setG2_fast	17021912
setG2_heuristic	188352
setG_fast	22648751
setG_heuristic	206374
set_line	24918418
sizered	1345206
spread	5848057
submuliu2n	4199817
submuliu642n	687471
submuliu64_inplace	9632106
submulshift	1507251
submulziu	5923600
submulzu2n	262549
subzi	18524899
truncexpo	12139
u64toi	19900941
u64toineg	671548
update_alpha	11986573
vectail_inplace	2089484

Generated by: LCOV version 1.16