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 30748-2ce22a5f1f) Lines: 1599 1779 89.9 % Date: 2026-03-18 09:25:54 Functions: 88 91 96.7 % Legend: Lines: hit not hit

Function Name	Hit count
L_compile_err	7
U_compile_err	7
access_push	115684
addcopy	273203
call0	28
cattovec	48672
checkdups	20799
closure_deriv	0
closure_derivn	112
closurefunc	10581
closuretoinl	0
compilecall	23333
compilecast	18609626
compilecast_loc	27784580
compileexport	41
compilefunc	10766180
compilefuncinline	20550
compilelambda	352
compilelocal	28
compilelvalue	1848
compilemat	9680
compilematcoeff	13602
compilemy	3461
compilenewptr	847
compilenode	52944797
compileseq	15136
compilesmall	30551075
compilestate_reset	452
compilestate_restore	56422
compilestate_save	1431372
compilestore	45921
compileunexport	6
compileuninline	6
compilevec	15460185
countlisttogen	52636881
countmatrixelts	441
countvar	3489
ctxmvar	9668
data_push	4804232
debug_context	0
detag	436769
fetch_member_raw	25263
first_safe_arg	21586446
frame_push	9198141
gcopyunclone	14002399
genclosure	9183982
genclosurectx	9173202
genctx	9188378
get_ret_type	21704239
getclosure	20289
getcodepos	10141926
getentry	367859
getfunc	21932544
getfunction	10141855
getlvalue	49545
getmvar	11136628
getvar	83944
getvardyn	131
gp_closure	936838
is_func_named	118380888
is_node_zero	4161
listtogen	52636881
localpush	70
localvars_find	7
localvars_read_str	10992
matchQ	8
matindex_type	15730
op_insert_loc	2975
op_push	115716350
op_push_loc	159716508
optimizecall	23340
optimizefunc	10761386
optimizemat	9680
optimizematcoeff	14603
optimizenode	62091993
optimizeseq	15136
optimizevec	15461431
pack_localvars	53
pari_close_compiler	373613
pari_init_compiler	374682
pari_translate_string	4
parseproto	154215114
push_frame	259
snm_closure	9171578
str_defproto	39
strntoGENexp	3822318
strtoclosure	1820
strtofunction	119
translate	3822322
var_push	65492
vec_optimize	15558053

Generated by: LCOV version 1.16