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 - RgX.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30218-f32872418f) Lines: 1623 1779 91.2 % Date: 2025-04-27 09:18:32 Functions: 204 222 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
RgXQX_mul	0
RgXQX_powers	0
RgXQX_sqr	0
RgXV_prod	0
RgX_RgXQV_eval	0
RgX_RgXn_eval	0
RgX_Rg_eval_bk	0
RgX_sqrhigh_i	0
RgX_sqrhigh_i2	0
RgX_translate_FpX	0
RgXn_exp	0
RgXn_inv_FpXQX	0
RgXn_powu	0
RgXn_sqr_basecase	0
_RgX_mul	0
_gen_sub	0
_sub	0
_zeroXn	0
RgXn_div_FpXQX	7
RgXn_sqrt	7
RgXn_sqrhigh	14
RgXQX_RgXQ_mul	35
RgX_rem_FpXQX	70
RgXn_inv_FpX	91
RgXn_div_FpX	119
RgXQV_RgXQ_mul	133
rfrac_deflate	140
rfrac_deflate_max	140
rfrac_deflate_order	140
RgXn_reverse	154
RgX_sqr_FpXQX	196
QXY_QXQ_evalx	238
RgXn_sqr2	315
RgXQM_mul	322
RgXX_to_RgM	322
RgXQ_trace	476
RgXnV_red_shallow	483
RgXn_powers	483
RgXV_maxdegree	588
zero_FpXQX_mod	616
RgX_RgXnV_eval	966
RgXQV_red	1211
_zero	1232
RgX_homogenize_deg	1260
RgXY_degreex	1387
ZX_unscale_divpow	1393
RgX_sqr_FpX	1407
QXQX_homogenous_evalpow	1652
_oneXn	1939
RgXY_swap	2051
RgX_mul_FpXQX	2079
RgXn_powu_i	2286
RgXV_rescale	2401
RgX_divs	2667
RgXQ_matrix_pow	2940
RgXV_RgV_eval	2947
QXV_QXQ_eval	3017
RgX_digits	3157
do_QXQ_eval	3255
RgXY_derivx	3836
RgX_muls	3992
_mulXn	4528
RgXQ_norm	5158
RgXn_eval	5159
RgXV_unscale	6223
QXQM_to_mod_shallow	6734
QX_ZXQV_eval	6902
RgXQV_factorback	7118
RgM_to_RgXV_reverse	7202
RgXQ_powers	8582
QXQ_powers	9205
_RgX_divrem	11333
ZXQ_powers	11760
RgX_pseudodivrem	11818
_sqrXn	11893
RgXQX_pseudodivrem	12063
RgXn_sqr	12152
QXQXV_to_mod	12537
ZX_unscale_div	12997
RgXQM_red	13223
RgX_sqr_QXQX	13425
QXQC_to_mod_shallow	14938
ZXQX_dvd	17342
QXQV_to_mod	18359
RgX_homogenize	18732
RgM_to_RgXX	23476
_gen_zero	24184
RgX_affine	30212
RgX_recip	31388
RgXQX_translate	32464
RgXY_swapspec	32769
QXQX_to_mod	37226
RgX_sqr_i	37961
RgX_sqrspec_basecase	38000
RgX_sqrspec	38039
RgX_normalize	39130
RgX_splitting	43631
RgX_rem_QXQX	49851
RgX_unscale	51409
RgXn_expint	52920
RgX_integXn	56377
RgX_recip_shallow	59388
RgX_Rg_add_shallow	65074
RgX_mul2n	65268
_sqr	67312
RgX_rem_FpX	68320
RgXQC_red	68355
RgXV_to_RgM	78556
_pow	88307
RgX_sqrspec_basecase_limb	100082
RgXQ_pow	102160
zero_FpX_mod	102627
_ZXQmul	111151
RgXQ_powu	116704
RgXQX_divrem	155695
QXQ_to_mod	166761
RgX_RgV_eval	166768
ZXQ_powu	168508
RgX_mul_QXQX	171133
Kronecker_to_mod	186210
RgV_to_RgX_reverse	188283
_ZXQsqr	200568
QXQX_to_mod_shallow	203599
RgX_addspec	222294
RgX_div_by_X_x	251073
_mul	276617
get_Rg_algebra	281050
RgM_to_RgXV	301989
RgX_rotate_shallow	317037
RgV_to_RgM	335576
RgX_RgXQ_eval	417203
RgX_liftred	455393
RgXQX_red	508531
_gen_cmul	512818
RgX_addmulXn	514764
RgXn_div	584450
_gen_sqr	591653
RgX_mul_FpX	609812
_add	623036
RgXQX_pseudorem	627576
RgX_pseudorem	627576
RgXn_recip_shallow	642864
RgX_homogenous_evalpow	668741
_red	723931
RgXn_inv	807483
RgX_deriv	825324
QXQ_to_mod_shallow	840415
RgX_valrem_inexact	852035
gen_bkeval	873998
RgX_inflate	881785
RgXn_inv_fast	905064
RgXn_inv_i	905064
ZX_unscale2n	924459
ZX_unscale	1013197
_one	1018660
_cmul	1039987
RgX_deflate	1175268
RgX_Rg_sub	1222875
RgXn_div_fast	1284113
RgXn_div_i	1284113
Rg_to_RgC	1355058
RgX_sqr	1372495
RgX_sqr_fast	1384647
ZX_z_unscale	1467287
RgV_to_RgX	1492451
RgX_shift	1578036
RgX_mulhigh_i2	1589510
RgX_mul_normalized	1719102
_gen_mul	1840014
_gen_nored	2027875
_gen_one	2068863
RgXn_div_gen	2188958
RgX_recipspec_shallow	2583666
RgXn_mulhigh	2614799
RgX_mulhigh_i	2671190
RgX_blocks	2788484
RgX_mulXn	2997279
RgX_val	3667765
rem	4042973
RgX_rescale	4342208
Rg_RgX_sub	4951490
RgX_recip_i	5112426
RgX_translate_basecase	5701557
RgX_translate_i	5701746
RgX_translate_fast	6063250
RgX_translate	6063252
RgXn_mul_basecase	6627987
Rg_get_0	6942919
RgX_Rg_divexact	7177500
RgX_renormalize_lg	7886391
RgXn_red_shallow	7944007
RgX_neg	8821169
RgX_addspec_shallow	8907565
RgXn_mul2	9414465
RgX_addmulXn_shallow	10065952
RgXn_mul	11061914
gen_bkeval_powers	12467381
RgX_to_RgC	13408887
RgX_divrem	14231663
gen_RgXQ_eval_powers	14560885
RgX_rem	14704041
RgX_rem_fast	14704076
_gen_add	19238090
brent_kung_optpow	19435219
RgX_divrem_i	23512189
RgX_equal	24895514
RgX_Rg_div	30323156
RgX_mulspec_basecase	34200072
RgX_mul_i	38830003
RgX_mulspec	40266292
RgX_Rg_add	44517084
RgX_even_odd	49729230
RgX_sub	72796159
RgX_valrem	80769876
RgXspec_kill0	81693914
RgX_mul	107408849
RgX_mulspec_basecase_limb	111057620
RgX_mul_fast	121141949
RgX_add	144846938
Rg_get_1	156947187
RgX_shift_shallow	175571188
RgX_Rg_mul	201362867

Generated by: LCOV version 1.16