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 - language - compile.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30824-18397de1d0) Lines: 1599 1779 89.9 % Date: 2026-04-18 09:26:04 Functions: 88 91 96.7 % Legend: Lines: hit not hit

Function Name	Hit count
closure_deriv	0
closuretoinl	0
debug_context	0
pari_translate_string	4
compileunexport	6
compileuninline	6
L_compile_err	7
U_compile_err	7
localvars_find	7
matchQ	8
call0	28
compilelocal	28
str_defproto	39
compileexport	41
pack_localvars	53
localpush	70
closure_derivn	112
strtofunction	119
getvardyn	131
push_frame	259
compilelambda	352
countmatrixelts	427
compilestate_reset	452
compilenewptr	847
strtoclosure	1820
compilelvalue	1848
op_insert_loc	2975
compilemy	3545
countvar	3573
is_node_zero	4252
compilemat	9680
optimizemat	9680
ctxmvar	9710
closurefunc	10602
localvars_read_str	10992
compilematcoeff	13595
optimizematcoeff	14596
compileseq	15199
optimizeseq	15199
matindex_type	15723
getclosure	20394
compilefuncinline	20655
checkdups	20953
compilecall	23375
optimizecall	23382
fetch_member_raw	25263
compilestore	46026
cattovec	48854
getlvalue	49643
compilestate_restore	56422
var_push	65730
getvar	84322
access_push	116426
addcopy	274344
getentry	369399
pari_close_compiler	370515
pari_init_compiler	371941
detag	438694
gp_closure	937020
compilestate_save	1431615
strntoGENexp	3822346
translate	3822350
data_push	4804414
snm_closure	9128415
genclosurectx	9130016
genclosure	9140837
genctx	9145319
frame_push	9155131
getfunction	10098989
getcodepos	10099075
optimizefunc	10763290
compilefunc	10768112
getmvar	11139876
gcopyunclone	13959557
compilevec	15460353
optimizevec	15461585
vec_optimize	15558431
compilecast	18613231
first_safe_arg	21590394
get_ret_type	21664732
getfunc	21937976
compilecast_loc	27745028
compilesmall	30552139
countlisttogen	52641263
listtogen	52641263
compilenode	52949347
optimizenode	62096921
op_push	115720053
is_func_named	118401671
parseproto	153578016
op_push_loc	159506343

Generated by: LCOV version 1.16