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 - basemath - FpV.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 74.5 % 989 737 Test Date: 2026-07-22 22:45:42 Functions: 79.1 % 139 110 Legend: Lines:     hit not hit

Function Name	Hit count
Flm_Fl_mul_inplace	0
Flv_Fl_div_inplace	0
Flv_Fl_mul_inplace	0
Flv_sub_inplace	0
Flx_dotproduct	0
FpC_center_inplace	0
FpM_add	0
FpM_powu	0
FpM_sub	0
FpMs_FpC_mul	0
FpMs_FpCs_solve	0
FpMs_FpCs_solve_safe	0
FpV_add	0
FpV_dotsquare	0
FpV_sub	0
FpXC_to_mod_raw	0
FpXM_to_mod	0
ZV_zMs_mul	0
ZlM_gauss	0
ZpMs_ZpCs_solve	0
_FpM_mul	0
_FpM_sqr	0
gen_ZpM_Dixon_Wiedemann	0
wrap_relcomb	0
wrap_relcomb_modp	0
zCs_to_ZC	0
zMs_ZC_mul	0
zMs_compress	0
zMs_to_ZM	0
FpXQC_to_mod	7
_F3C_center_inplace	7
Flc_Flv_mul	14
Flc_to_mod	28
FqC_to_mod	28
matid_F2xqM	35
FpM_center_inplace	42
FpMs_leftkernel_elt	42
_FpC_center_inplace	42
scalar_Flm	42
matid_FlxqM	56
FpC_to_mod	105
FpMs_leftkernel_elt_col	147
FpMs_structelim_back	147
gen_FpM_Wiedemann	147
random_FpV	147
Fp_center_inplace	168
FpM_to_mod	226
FpV_red	420
FpVV_to_mod	574
Flm_powers	840
_Flm_one	840
random_FpC	924
zm_mul	2114
gen_matid	2464
Flm_Fl_sub	3710
Flv_sum	3871
Flv_Fl_div	4706
ZMV_to_FlmV	4940
FpC_FpV_mul	5881
Fp_to_mod	5954
Flv_neg_inplace	6407
Flm_Flc_mul_pre	6791
Flm_mul_sw	8288
Flm_center	11347
ZVV_to_FlvV	14722
_Flm_mul	21403
vecprow	23037
FqM_to_mod	26145
Flm_add	29322
add_slices	33152
FpV_to_mod	36488
random_Flv	41429
Flm_powu	51360
Flm_Fl_add	51472
subtract_slices	58014
Flm_to_mod	59694
Flv_dotproduct_pre	62204
add_slices_ip	66303
wrap_relker	68817
FpV_FpMs_mul	68964
Flm_Fl_mul	82642
FpXC_to_mod	84035
Flm_sqr	92727
_Flm_sqr	92727
FqC_to_mod_raw	107975
Flv_center	164710
FpC_add	284658
Flm_neg	325386
Flm_Flc_mul_i_2	339524
Flv_add_inplace	510726
Fl_to_intmod	578850
Fq_to_mod_raw	582533
Flv_dotproduct	730750
Flm_transpose	736485
Flv_dotproductspec_i	748652
FpM_Fp_mul	768115
FpC_sub	965837
FpC_Fp_mul	974694
FpX_to_mod_raw	997283
Flm_Flc_mul	1086741
FpM_FpC_mul_FpX	1234380
FpX_to_mod	1263472
matid_Flm	1443974
Flv_Fl_mul	1754489
FpM_FpC_mul_i	1763476
FpM_FpC_mul	1763477
FpM_mul	2062152
FpM_center	2815816
Flv_neg	4110877
FpM_red	5712608
zm_zc_mul	6450565
FpC_center	7078370
Flm_Flc_mul_pre_Flx	7669179
Flv_Fl_mul_part_inplace	7984627
FpV_dotproduct	8684145
Flm_Fl_mul_OK	8691733
Flv_dotproductspec_SMALL	9718556
Flx_dotproduct_pre	9741609
ZM_to_Flm	13459347
Flm_mul_pre	14068736
Flm_mul	14781135
Flm_Fl_mul_pre_i	17752703
FpMrow_FpC_mul_i	18956390
to_intmod	18975948
Flm_sub	26303971
Flm_Fl_mul_pre	26361881
Flm_mul_classical	28994628
Flm_mul_i	29001974
FpC_red	31818470
ZV_to_Flv	58163895
Flm_Flc_mul_i_SMALL	84337559
__Flm_Flc_mul_i_SMALL	87504966
Flm_Flc_mul_i	96570258
zmrow_zc_mul	97688616
__Flm_Flc_mul_i	100954806
Flv_sub	242133384
Flmrow_Flc_mul_i	563790777
Flv_add	569672290
Flmrow_Flc_mul_SMALL	781106564

Generated by: LCOV version 2.0-1