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 30651-3e52073f6d) Lines: 1608 1779 90.4 % Date: 2026-01-28 09:23:10 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
compileexport	41
pack_localvars	53
localpush	70
str_defproto	95
closure_derivn	112
strtofunction	119
getvardyn	131
push_frame	259
compilelambda	339
countmatrixelts	427
compilestate_reset	452
compilenewptr	840
strtoclosure	1820
compilelvalue	1834
op_insert_loc	2975
compilemy	3420
countvar	3448
is_node_zero	4113
ctxmvar	9599
compilemat	9667
optimizemat	9667
closurefunc	10524
localvars_read_str	10992
compilematcoeff	13540
optimizematcoeff	14534
compileseq	15037
optimizeseq	15037
matindex_type	15654
getclosure	20231
compilefuncinline	20486
checkdups	20669
compilecall	23305
optimizecall	23312
fetch_member_raw	25263
compilestore	45750
cattovec	48296
getlvalue	49367
compilestate_restore	56395
var_push	65300
getvar	83513
access_push	115236
addcopy	270492
getentry	364660
pari_close_compiler	370812
pari_init_compiler	373158
detag	433134
gp_closure	935945
compilestate_save	1430364
strntoGENexp	3822191
translate	3822195
data_push	4803299
snm_closure	9164592
genclosurectx	9166196
genclosure	9176939
genctx	9181323
frame_push	9190981
getfunction	10133817
getcodepos	10133902
optimizefunc	10754703
compilefunc	10759523
getmvar	11127027
gcopyunclone	13994315
compilevec	15459275
optimizevec	15460504
vec_optimize	15556761
compilecast	18597880
first_safe_arg	21572908
get_ret_type	21684093
getfunc	21916007
compilecast_loc	27765851
compilesmall	30547059
countlisttogen	52621229
listtogen	52621229
compilenode	52929251
optimizenode	62075144
op_push	115702097
is_func_named	118307902
parseproto	154066713
op_push_loc	159658848

Generated by: LCOV version 1.16