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 30816-9c15a02229) Lines: 1599 1779 89.9 % Date: 2026-04-15 09:25:30 Functions: 88 91 96.7 % Legend: Lines: hit not hit

Function Name	Hit count
L_compile_err	7
U_compile_err	7
access_push	116349
addcopy	274260
call0	28
cattovec	48854
checkdups	20932
closure_deriv	0
closure_derivn	112
closurefunc	10602
closuretoinl	0
compilecall	23361
compilecast	18612951
compilecast_loc	27744720
compileexport	41
compilefunc	10767972
compilefuncinline	20655
compilelambda	352
compilelocal	28
compilelvalue	1848
compilemat	9680
compilematcoeff	13595
compilemy	3531
compilenewptr	847
compilenode	52948997
compileseq	15192
compilesmall	30552055
compilestate_reset	452
compilestate_restore	56422
compilestate_save	1431615
compilestore	46033
compileunexport	6
compileuninline	6
compilevec	15460346
countlisttogen	52640920
countmatrixelts	427
countvar	3559
ctxmvar	9703
data_push	4804400
debug_context	0
detag	438526
fetch_member_raw	25263
first_safe_arg	21590086
frame_push	9155043
gcopyunclone	13959511
genclosure	9140790
genclosurectx	9129971
genctx	9145305
get_ret_type	21664417
getclosure	20394
getcodepos	10099027
getentry	369280
getfunc	21937549
getfunction	10098951
getlvalue	49650
getmvar	11139631
getvar	84287
getvardyn	131
gp_closure	937020
is_func_named	118400201
is_node_zero	4238
listtogen	52640920
localpush	70
localvars_find	7
localvars_read_str	10992
matchQ	8
matindex_type	15723
op_insert_loc	2975
op_push	115719808
op_push_loc	159505706
optimizecall	23368
optimizefunc	10763150
optimizemat	9680
optimizematcoeff	14596
optimizenode	62096529
optimizeseq	15192
optimizevec	15461578
pack_localvars	53
pari_close_compiler	370419
pari_init_compiler	371941
pari_translate_string	4
parseproto	153576474
push_frame	259
snm_closure	9128384
str_defproto	39
strntoGENexp	3822346
strtoclosure	1820
strtofunction	119
translate	3822350
var_push	65688
vec_optimize	15558396

Generated by: LCOV version 1.16