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 30364-8108102770) Lines: 1335 1641 81.4 % Date: 2025-06-30 09:21:07 Functions: 125 130 96.2 % Legend: Lines: hit not hit

Function Name	Hit count
Babai	0
Babai_dpe	4646794
Babai_fast	30177416
Babai_heuristic	289647
GS_extraprec	4723730
REDgen	196
RgM_Cholesky_dynprec	2967
RgM_flip	34918
RgM_flop	0
RgM_is_square_mat	45828
ZC_to_RC	15752
ZM2_lll_norms	4840428
ZM_flatter	626031
ZM_flatter_rank	624017
ZM_flattergram	961
ZM_flattergram_rank	961
ZM_is_knapsack	606564
ZM_is_lower	1197570
ZM_is_upper	4225667
ZM_lll_norms	7122503
ZM_to_RM	4146
absrsmall	698021
absrsmall2	402598
addmuliu2n	4104112
addmuliu642n	671434
addmuliu64_inplace	9578046
addmulziu	4580588
addmulzu2n	271563
addzi	17783717
affdbldpe	3192353
affdpe	25717195
affidpe	20727556
affii_or_copy_gc	1390466
cget_dblmat	8387110
cget_dblvec	34909798
cget_dpemat	3192374
cget_dpevec	13257152
condition_bound	4723730
dbg_flatter	0
dbg_flattergram	0
dbldotproduct	118179362
dbldotsquare	2473820
dblrotate	34587838
do_SWAPgen	196
dpeM_diagonal_shallow	20287
dpe_abscmp	14507833
dpe_abssmall	1390481
dpe_addmuluz	342913
dpe_addz	1943189
dpe_cmp	5255025
dpe_cmpmul	5255017
dpe_divz	14067371
dpe_muluz	799911
dpe_mulz	56949717
dpe_negz	244451
dpe_normalize	48093401
dpe_normalize0	108523148
dpe_submuluz	412447
dpe_submulz	51694823
dpe_subz	53726012
dperotate	652462
dpetor	94271
drop	1345397
flat	1345396
flattergram_i	2967
fplll	0
fplll_dpe	1596176
fplll_fast	2096780
fplll_flatter	624978
fplll_heuristic	4146
gc_lll	4735
get_gaussred	44553
get_gramschmidt	1097890
gramschmidt_dynprec	2690793
gramschmidt_upper	1336
gsisinv	5191352
incrementalGSgen	168
itodbl_exp	162517754
kerint	42
kerint0	70
lll	1243282
lll_finish	2157477
lll_trivial	771019
lllall	36699
lllallgen	168
lllfp	5366285
lllgen	42
lllgram	9089
lllgramallgen	168
lllgramgen	42
lllgramint	36439
lllgramkerim	35
lllgramkerimgen	42
lllint	183
lllkerim	35
lllkerimgen	42
matkerint0	28
mpabscmp	4092471
mulshift	318863
nbits2prec64	7484004
pari_rint	10780093
potential	1345396
pslg	504
qflll0	301
qflllgram	63
qflllgram0	245
realdotproduct	1185976
realsqrdotproduct	197988
rotate	31899236
rotateG	443711
rotateG_fast	11529291
setG2_fast	17011962
setG2_heuristic	188280
setG_fast	22633255
setG_heuristic	206167
set_line	24896779
sizered	1345396
spread	5848824
submuliu2n	4196761
submuliu642n	687345
submuliu64_inplace	9628809
submulshift	1507011
submulziu	5923605
submulzu2n	262549
subzi	18525431
truncexpo	12139
u64toi	19894200
u64toineg	671434
update_alpha	11973163
vectail_inplace	2083256

Generated by: LCOV version 1.16