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 30347-cb65b7994e) Lines: 1623 1779 91.2 % Date: 2025-06-27 09:22:08 Functions: 204 222 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Kronecker_to_mod	186210
QXQC_to_mod_shallow	14938
QXQM_to_mod_shallow	6734
QXQV_to_mod	22342
QXQXV_to_mod	12733
QXQX_homogenous_evalpow	1652
QXQX_to_mod	37471
QXQX_to_mod_shallow	204271
QXQ_powers	9590
QXQ_to_mod	169946
QXQ_to_mod_shallow	841535
QXV_QXQ_eval	3241
QXY_QXQ_evalx	371
QX_ZXQV_eval	7594
RgM_to_RgXV	303231
RgM_to_RgXV_reverse	7202
RgM_to_RgXX	23714
RgV_to_RgM	336706
RgV_to_RgX	1501734
RgV_to_RgX_reverse	188283
RgXQC_red	68355
RgXQM_mul	322
RgXQM_red	13223
RgXQV_RgXQ_mul	133
RgXQV_factorback	7118
RgXQV_red	1211
RgXQX_RgXQ_mul	35
RgXQX_divrem	156871
RgXQX_mul	0
RgXQX_powers	0
RgXQX_pseudodivrem	12063
RgXQX_pseudorem	660116
RgXQX_red	508979
RgXQX_sqr	0
RgXQX_translate	33584
RgXQ_matrix_pow	2940
RgXQ_norm	2680
RgXQ_pow	102160
RgXQ_powers	8596
RgXQ_powu	116725
RgXQ_trace	476
RgXV_RgV_eval	2947
RgXV_maxdegree	588
RgXV_prod	0
RgXV_rescale	2401
RgXV_to_RgM	79030
RgXV_unscale	6559
RgXX_to_RgM	322
RgXY_degreex	1387
RgXY_derivx	3836
RgXY_swap	2051
RgXY_swapspec	32773
RgX_RgV_eval	166768
RgX_RgXQV_eval	0
RgX_RgXQ_eval	417518
RgX_RgXnV_eval	966
RgX_RgXn_eval	0
RgX_Rg_add	45363979
RgX_Rg_add_shallow	65101
RgX_Rg_div	30719610
RgX_Rg_divexact	7483796
RgX_Rg_eval_bk	0
RgX_Rg_mul	202880411
RgX_Rg_sub	1226064
RgX_add	145709072
RgX_addmulXn	514796
RgX_addmulXn_shallow	10131432
RgX_addspec	222326
RgX_addspec_shallow	8939567
RgX_affine	30212
RgX_blocks	2788484
RgX_deflate	1181411
RgX_deriv	830470
RgX_digits	3157
RgX_div_by_X_x	265422
RgX_divrem	14233903
RgX_divrem_i	23519494
RgX_divs	2667
RgX_equal	24897628
RgX_even_odd	49755389
RgX_homogenize	18732
RgX_homogenize_deg	1260
RgX_homogenous_evalpow	887822
RgX_inflate	883145
RgX_integXn	56377
RgX_liftred	455393
RgX_mul	107834842
RgX_mul2n	65268
RgX_mulXn	2997279
RgX_mul_FpX	609812
RgX_mul_FpXQX	2079
RgX_mul_QXQX	171133
RgX_mul_fast	121568032
RgX_mul_i	38833958
RgX_mul_normalized	1719204
RgX_mulhigh_i	2671190
RgX_mulhigh_i2	1589510
RgX_muls	3992
RgX_mulspec	40270361
RgX_mulspec_basecase	34204094
RgX_mulspec_basecase_limb	111071694
RgX_neg	9247177
RgX_normalize	39130
RgX_pseudodivrem	11818
RgX_pseudorem	660116
RgX_recip	31388
RgX_recip_i	5206065
RgX_recip_shallow	59388
RgX_recipspec_shallow	2583873
RgX_rem	14716809
RgX_rem_FpX	68320
RgX_rem_FpXQX	70
RgX_rem_QXQX	49851
RgX_rem_fast	14716792
RgX_renormalize_lg	7886629
RgX_rescale	4343394
RgX_rotate_shallow	317037
RgX_shift	1578036
RgX_shift_shallow	177404432
RgX_splitting	43631
RgX_sqr	1373424
RgX_sqr_FpX	1407
RgX_sqr_FpXQX	196
RgX_sqr_QXQX	13425
RgX_sqr_fast	1385576
RgX_sqr_i	37961
RgX_sqrhigh_i	0
RgX_sqrhigh_i2	0
RgX_sqrspec	38039
RgX_sqrspec_basecase	38000
RgX_sqrspec_basecase_limb	100082
RgX_sub	72827100
RgX_to_RgC	13426142
RgX_translate	6064075
RgX_translate_FpX	0
RgX_translate_basecase	5702321
RgX_translate_fast	6064074
RgX_translate_i	5702509
RgX_unscale	51890
RgX_val	3667905
RgX_valrem	80794802
RgX_valrem_inexact	852252
RgXnV_red_shallow	483
RgXn_div	584450
RgXn_div_FpX	119
RgXn_div_FpXQX	7
RgXn_div_fast	1284113
RgXn_div_gen	2188987
RgXn_div_i	1284113
RgXn_eval	5187
RgXn_exp	0
RgXn_expint	52920
RgXn_inv	807482
RgXn_inv_FpX	91
RgXn_inv_FpXQX	0
RgXn_inv_fast	905092
RgXn_inv_i	905092
RgXn_mul	11061997
RgXn_mul2	9414549
RgXn_mul_basecase	6627987
RgXn_mulhigh	2614799
RgXn_powers	483
RgXn_powu	0
RgXn_powu_i	2286
RgXn_recip_shallow	643039
RgXn_red_shallow	7944009
RgXn_reverse	154
RgXn_sqr	12152
RgXn_sqr2	315
RgXn_sqr_basecase	0
RgXn_sqrhigh	14
RgXn_sqrt	7
RgXspec_kill0	81701952
Rg_RgX_sub	4953244
Rg_get_0	6942779
Rg_get_1	156951339
Rg_to_RgC	1360789
ZXQX_dvd	17804
ZXQ_powers	12145
ZXQ_powu	168509
ZX_unscale	1013197
ZX_unscale2n	1113370
ZX_unscale_div	12997
ZX_unscale_divpow	1393
ZX_z_unscale	1485105
_RgX_divrem	11333
_RgX_mul	0
_ZXQmul	111193
_ZXQsqr	200608
_add	623394
_cmul	1040650
_gen_add	19264384
_gen_cmul	512818
_gen_mul	1845158
_gen_nored	2033951
_gen_one	2075151
_gen_sqr	593291
_gen_sub	0
_gen_zero	24184
_mul	276655
_mulXn	4528
_one	1019736
_oneXn	1939
_pow	88307
_red	724308
_sqr	67318
_sqrXn	11893
_sub	0
_zero	1232
_zeroXn	0
brent_kung_optpow	19591673
do_QXQ_eval	3612
gen_RgXQ_eval_powers	14621956
gen_bkeval	875535
gen_bkeval_powers	12526778
get_Rg_algebra	282211
rem	4260629
rfrac_deflate	140
rfrac_deflate_max	140
rfrac_deflate_order	140
zero_FpXQX_mod	616
zero_FpX_mod	102627

Generated by: LCOV version 1.16