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
Babai_dpe	4646681
Babai_fast	30175969
Babai_heuristic	288670
GS_extraprec	4723171
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15745
ZM2_lll_norms	4840004
ZM_flatter	626000
ZM_flatter_rank	623986
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606469
ZM_is_lower	1197530
ZM_is_upper	4225242
ZM_lll_norms	7121937
ZM_to_RM	4144
absrsmall	696359
absrsmall2	401359
addmuliu2n	4103734
addmuliu642n	671434
addmuliu64_inplace	9578046
addmulziu	4580576
addmulzu2n	271563
addzi	17783553
affdbldpe	3192292
affdpe	25716736
affidpe	20727128
affii_or_copy_gc	1390459
cget_dblmat	8386570
cget_dblvec	34907268
cget_dpemat	3192292
cget_dpevec	13256776
condition_bound	4723172
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118174823
dbldotsquare	2473674
dblrotate	34585754
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14507557
dpe_abssmall	1390469
dpe_addmuluz	342913
dpe_addz	1943185
dpe_cmp	5254900
dpe_cmpmul	5254895
dpe_divz	14067071
dpe_muluz	799908
dpe_mulz	56948898
dpe_negz	244426
dpe_normalize	48092899
dpe_normalize0	108521822
dpe_submuluz	412447
dpe_submulz	51694146
dpe_subz	53725328
dperotate	652462
dpetor	94271
drop	1345197
flat	1345201
flattergram_i	2967
fplll	0
fplll_dpe	1596150
fplll_fast	2096648
fplll_flatter	624947
fplll_heuristic	4144
gc_lll	4733
get_gaussred	44553
get_gramschmidt	1097852
gramschmidt_dynprec	2690401
gramschmidt_upper	1336
gsisinv	5190781
incrementalGSgen	168
itodbl_exp	162513433
kerint	42
kerint0	70
lll	1243283
lll_finish	2157338
lll_trivial	771024
lllall	36699
lllallgen	168
lllfp	5365697
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4091752
mulshift	318862
nbits2prec64	7483009
pari_rint	10778943
potential	1345200
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1182991
realsqrdotproduct	197241
rotate	31895011
rotateG	443280
rotateG_fast	11528595
setG2_fast	17010781
setG2_heuristic	187538
setG_fast	22631753
setG_heuristic	205419
set_line	24894492
sizered	1345201
spread	5848158
submuliu2n	4196191
submuliu642n	687345
submuliu64_inplace	9628809
submulshift	1507003
submulziu	5923612
submulzu2n	262549
subzi	18525083
truncexpo	12138
u64toi	19894200
u64toineg	671434
update_alpha	11972006
vectail_inplace	2083121

Generated by: LCOV version 1.16