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 30773-2078653b96) Lines: 1599 1779 89.9 % Date: 2026-04-04 09:27:12 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	441
compilestate_reset	452
compilenewptr	847
strtoclosure	1820
compilelvalue	1848
op_insert_loc	2975
compilemy	3461
countvar	3489
is_node_zero	4161
ctxmvar	9668
compilemat	9680
optimizemat	9680
closurefunc	10581
localvars_read_str	10992
compilematcoeff	13602
optimizematcoeff	14603
compileseq	15136
optimizeseq	15136
matindex_type	15730
getclosure	20289
compilefuncinline	20550
checkdups	20799
compilecall	23333
optimizecall	23340
fetch_member_raw	25263
compilestore	45942
cattovec	48672
getlvalue	49566
compilestate_restore	56422
var_push	65492
getvar	83965
access_push	115684
addcopy	273336
getentry	368013
pari_close_compiler	373236
pari_init_compiler	374694
detag	436944
gp_closure	936908
compilestate_save	1431452
strntoGENexp	3822318
translate	3822322
data_push	4804232
snm_closure	9171582
genclosurectx	9173200
genclosure	9183972
genctx	9188441
frame_push	9198178
getfunction	10141994
getcodepos	10142005
optimizefunc	10761617
compilefunc	10766411
getmvar	11137013
gcopyunclone	14002426
compilevec	15460220
optimizevec	15461466
vec_optimize	15558088
compilecast	18610067
first_safe_arg	21586908
get_ret_type	21704694
getfunc	21933160
compilecast_loc	27785138
compilesmall	30551201
countlisttogen	52637413
listtogen	52637413
compilenode	52945350
optimizenode	62092581
op_push	115716861
is_func_named	118383429
parseproto	154217121
op_push_loc	159717560

Generated by: LCOV version 1.16