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 30802-b11b770002) Lines: 1599 1779 89.9 % Date: 2026-04-12 09:26:48 Functions: 88 91 96.7 % Legend: Lines: hit not hit

Function Name	Hit count
L_compile_err	7
U_compile_err	7
access_push	116174
addcopy	273798
call0	28
cattovec	48854
checkdups	20883
closure_deriv	0
closure_derivn	112
closurefunc	10602
closuretoinl	0
compilecall	23326
compilecast	18611264
compilecast_loc	27786236
compileexport	41
compilefunc	10767118
compilefuncinline	20606
compilelambda	352
compilelocal	28
compilelvalue	1848
compilemat	9680
compilematcoeff	13588
compilemy	3524
compilenewptr	847
compilenode	52946841
compileseq	15157
compilesmall	30551495
compilestate_reset	452
compilestate_restore	56422
compilestate_save	1431516
compilestore	45942
compileunexport	6
compileuninline	6
compilevec	15460248
countlisttogen	52638827
countmatrixelts	420
countvar	3552
ctxmvar	9668
data_push	4804316
debug_context	0
detag	437756
fetch_member_raw	25263
first_safe_arg	21588308
frame_push	9198210
gcopyunclone	14002554
genclosure	9183974
genclosurectx	9173178
genctx	9188438
get_ret_type	21705947
getclosure	20345
getcodepos	10142094
getentry	368601
getfunc	21935106
getfunction	10142008
getlvalue	49566
getmvar	11138168
getvar	84070
getvardyn	131
gp_closure	936957
is_func_named	118390737
is_node_zero	4245
listtogen	52638827
localpush	70
localvars_find	7
localvars_read_str	10992
matchQ	8
matindex_type	15716
op_insert_loc	2975
op_push	115717904
op_push_loc	159719141
optimizecall	23333
optimizefunc	10762303
optimizemat	9680
optimizematcoeff	14589
optimizenode	62094135
optimizeseq	15157
optimizevec	15461473
pack_localvars	53
pari_close_compiler	372946
pari_init_compiler	374693
pari_translate_string	4
parseproto	154219826
push_frame	259
snm_closure	9171562
str_defproto	39
strntoGENexp	3822346
strtoclosure	1820
strtofunction	119
translate	3822350
var_push	65569
vec_optimize	15558242

Generated by: LCOV version 1.16