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: 2026-02-28 09:24:01 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	339
countmatrixelts	427
compilestate_reset	452
compilenewptr	840
strtoclosure	1820
compilelvalue	1834
op_insert_loc	2975
compilemy	3420
countvar	3448
is_node_zero	4120
ctxmvar	9620
compilemat	9674
optimizemat	9674
closurefunc	10574
localvars_read_str	10992
compilematcoeff	13554
optimizematcoeff	14548
compileseq	15088
optimizeseq	15088
matindex_type	15668
getclosure	20240
compilefuncinline	20488
checkdups	20682
compilecall	23305
optimizecall	23312
fetch_member_raw	25263
compilestore	45865
cattovec	48560
getlvalue	49482
compilestate_restore	56408
var_push	65320
getvar	83655
access_push	115277
addcopy	270938
getentry	365298
pari_close_compiler	371782
pari_init_compiler	373328
detag	433897
gp_closure	936713
compilestate_save	1431179
strntoGENexp	3822290
translate	3822294
data_push	4804107
snm_closure	9164893
genclosurectx	9166528
genclosure	9177287
genctx	9181611
frame_push	9191341
getfunction	10134950
getcodepos	10135042
optimizefunc	10756924
compilefunc	10761711
getmvar	11129775
gcopyunclone	13995440
compilevec	15459450
optimizevec	15460682
vec_optimize	15557160
compilecast	18600932
first_safe_arg	21577452
get_ret_type	21688743
getfunc	21921003
compilecast_loc	27769248
compilesmall	30548219
countlisttogen	52626215
listtogen	52626215
compilenode	52934258
optimizenode	62080557
op_push	115707091
is_func_named	118332005
parseproto	154088640
op_push_loc	159669601

Generated by: LCOV version 1.16