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 30775-9d8a55740a) Lines: 1599 1779 89.9 % Date: 2026-04-05 09:26:48 Functions: 88 91 96.7 % Legend: Lines: hit not hit

Function Name	Hit count
L_compile_err	7
U_compile_err	7
access_push	115481
addcopy	273175
call0	28
cattovec	48672
checkdups	20757
closure_deriv	0
closure_derivn	112
closurefunc	10581
closuretoinl	0
compilecall	23319
compilecast	18609675
compilecast_loc	27784655
compileexport	41
compilefunc	10766257
compilefuncinline	20543
compilelambda	352
compilelocal	28
compilelvalue	1848
compilemat	9680
compilematcoeff	13588
compilemy	3426
compilenewptr	847
compilenode	52944930
compileseq	15129
compilesmall	30551166
compilestate_reset	452
compilestate_restore	56422
compilestate_save	1431439
compilestore	45935
compileunexport	6
compileuninline	6
compilevec	15460206
countlisttogen	52636944
countmatrixelts	413
countvar	3454
ctxmvar	9661
data_push	4804218
debug_context	0
detag	436440
fetch_member_raw	25263
first_safe_arg	21586572
frame_push	9198070
gcopyunclone	14002341
genclosure	9183982
genclosurectx	9173202
genctx	9188392
get_ret_type	21704466
getclosure	20282
getcodepos	10141986
getentry	367747
getfunc	21932558
getfunction	10141889
getlvalue	49559
getmvar	11136663
getvar	83860
getvardyn	131
gp_closure	936901
is_func_named	118381966
is_node_zero	4140
listtogen	52636944
localpush	70
localvars_find	7
localvars_read_str	10992
matchQ	8
matindex_type	15716
op_insert_loc	2975
op_push	115716245
op_push_loc	159716485
optimizecall	23326
optimizefunc	10761463
optimizemat	9680
optimizematcoeff	14589
optimizenode	62091909
optimizeseq	15129
optimizevec	15461424
pack_localvars	53
pari_close_compiler	372780
pari_init_compiler	374686
pari_translate_string	4
parseproto	154215352
push_frame	259
snm_closure	9171590
str_defproto	39
strntoGENexp	3822318
strtoclosure	1820
strtofunction	119
translate	3822322
var_push	65394
vec_optimize	15557997

Generated by: LCOV version 1.16