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 30347-cb65b7994e) Lines: 1335 1641 81.4 % Date: 2025-06-27 09:22:08 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	4144
fplll_heuristic	4144
gc_lll	4733
lllgram	9089
truncexpo	12138
ZC_to_RC	15745
dpeM_diagonal_shallow	20287
RgM_flip	34918
lllgramint	36439
lllall	36699
get_gaussred	44553
RgM_is_square_mat	45828
dpetor	94271
setG2_heuristic	187538
realsqrdotproduct	197241
setG_heuristic	205419
dpe_negz	244426
submulzu2n	262549
addmulzu2n	271563
Babai_heuristic	288670
mulshift	318862
dpe_addmuluz	342913
absrsmall2	401359
dpe_submuluz	412447
rotateG	443280
ZM_is_knapsack	606469
ZM_flatter_rank	623986
fplll_flatter	624947
ZM_flatter	626000
dperotate	652462
addmuliu642n	671434
u64toineg	671434
submuliu642n	687345
absrsmall	696359
lll_trivial	771024
dpe_muluz	799908
get_gramschmidt	1097852
realdotproduct	1182991
ZM_is_lower	1197530
lll	1243283
drop	1345197
potential	1345200
flat	1345201
sizered	1345201
affii_or_copy_gc	1390459
dpe_abssmall	1390469
submulshift	1507003
fplll_dpe	1596150
dpe_addz	1943185
vectail_inplace	2083121
fplll_fast	2096648
lll_finish	2157338
dbldotsquare	2473674
gramschmidt_dynprec	2690401
affdbldpe	3192292
cget_dpemat	3192292
mpabscmp	4091752
addmuliu2n	4103734
submuliu2n	4196191
ZM_is_upper	4225242
addmulziu	4580576
Babai_dpe	4646681
GS_extraprec	4723171
condition_bound	4723172
ZM2_lll_norms	4840004
gsisinv	5190781
dpe_cmpmul	5254895
dpe_cmp	5254900
lllfp	5365697
spread	5848158
submulziu	5923612
ZM_lll_norms	7121937
nbits2prec64	7483009
cget_dblmat	8386570
addmuliu64_inplace	9578046
submuliu64_inplace	9628809
pari_rint	10778943
rotateG_fast	11528595
update_alpha	11972006
cget_dpevec	13256776
dpe_divz	14067071
dpe_abscmp	14507557
setG2_fast	17010781
addzi	17783553
subzi	18525083
u64toi	19894200
affidpe	20727128
setG_fast	22631753
set_line	24894492
affdpe	25716736
Babai_fast	30175969
rotate	31895011
dblrotate	34585754
cget_dblvec	34907268
dpe_normalize	48092899
dpe_submulz	51694146
dpe_subz	53725328
dpe_mulz	56948898
dpe_normalize0	108521822
dbldotproduct	118174823
itodbl_exp	162513433

Generated by: LCOV version 1.16