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 30657-d14c2a9e4e) Lines: 1608 1779 90.4 % Date: 2026-01-29 09:23:20 Functions: 88 91 96.7 % Legend: Lines: hit not hit

Function Name	Hit count
L_compile_err	7
U_compile_err	7
access_push	115236
addcopy	270492
call0	28
cattovec	48296
checkdups	20669
closure_deriv	0
closure_derivn	112
closurefunc	10524
closuretoinl	0
compilecall	23305
compilecast	18597880
compilecast_loc	27765908
compileexport	41
compilefunc	10759523
compilefuncinline	20486
compilelambda	339
compilelocal	28
compilelvalue	1834
compilemat	9667
compilematcoeff	13540
compilemy	3420
compilenewptr	840
compilenode	52929251
compileseq	15037
compilesmall	30547059
compilestate_reset	452
compilestate_restore	56395
compilestate_save	1430365
compilestore	45750
compileunexport	6
compileuninline	6
compilevec	15459275
countlisttogen	52621229
countmatrixelts	427
countvar	3448
ctxmvar	9599
data_push	4803299
debug_context	0
detag	433134
fetch_member_raw	25263
first_safe_arg	21572908
frame_push	9190996
gcopyunclone	13994340
genclosure	9176977
genclosurectx	9166246
genctx	9181344
get_ret_type	21684127
getclosure	20231
getcodepos	10133954
getentry	364660
getfunc	21916007
getfunction	10133869
getlvalue	49367
getmvar	11127027
getvar	83513
getvardyn	131
gp_closure	935945
is_func_named	118307902
is_node_zero	4113
listtogen	52621229
localpush	70
localvars_find	7
localvars_read_str	10992
matchQ	8
matindex_type	15654
op_insert_loc	2975
op_push	115702097
op_push_loc	159659079
optimizecall	23312
optimizefunc	10754703
optimizemat	9667
optimizematcoeff	14534
optimizenode	62075144
optimizeseq	15037
optimizevec	15460504
pack_localvars	53
pari_close_compiler	371209
pari_init_compiler	373150
pari_translate_string	4
parseproto	154067457
push_frame	259
snm_closure	9164632
str_defproto	95
strntoGENexp	3822191
strtoclosure	1820
strtofunction	119
translate	3822195
var_push	65300
vec_optimize	15556761

Generated by: LCOV version 1.16