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 30719-2b7f142d49) Lines: 1599 1779 89.9 % Date: 2026-03-01 09:23:56 Functions: 88 91 96.7 % Legend: Lines: hit not hit

Function Name	Hit count
L_compile_err	7
U_compile_err	7
access_push	115277
addcopy	270938
call0	28
cattovec	48560
checkdups	20682
closure_deriv	0
closure_derivn	112
closurefunc	10574
closuretoinl	0
compilecall	23305
compilecast	18600932
compilecast_loc	27769331
compileexport	41
compilefunc	10761711
compilefuncinline	20488
compilelambda	339
compilelocal	28
compilelvalue	1834
compilemat	9674
compilematcoeff	13554
compilemy	3420
compilenewptr	840
compilenode	52934258
compileseq	15088
compilesmall	30548219
compilestate_reset	452
compilestate_restore	56408
compilestate_save	1431182
compilestore	45865
compileunexport	6
compileuninline	6
compilevec	15459450
countlisttogen	52626215
countmatrixelts	427
countvar	3448
ctxmvar	9620
data_push	4804107
debug_context	0
detag	433897
fetch_member_raw	25263
first_safe_arg	21577452
frame_push	9191396
gcopyunclone	13995498
genclosure	9177330
genclosurectx	9166579
genctx	9181696
get_ret_type	21688763
getclosure	20240
getcodepos	10135091
getentry	365298
getfunc	21921003
getfunction	10135038
getlvalue	49482
getmvar	11129775
getvar	83655
getvardyn	131
gp_closure	936713
is_func_named	118332005
is_node_zero	4120
listtogen	52626215
localpush	70
localvars_find	7
localvars_read_str	10992
matchQ	8
matindex_type	15668
op_insert_loc	2975
op_push	115707091
op_push_loc	159669885
optimizecall	23312
optimizefunc	10756924
optimizemat	9674
optimizematcoeff	14548
optimizenode	62080557
optimizeseq	15088
optimizevec	15460682
pack_localvars	53
pari_close_compiler	371861
pari_init_compiler	373347
pari_translate_string	4
parseproto	154089523
push_frame	259
snm_closure	9164936
str_defproto	39
strntoGENexp	3822290
strtoclosure	1820
strtofunction	119
translate	3822294
var_push	65320
vec_optimize	15557160

Generated by: LCOV version 1.16