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 30359-47f31365a1) Lines: 1630 1786 91.3 % Date: 2025-06-29 09:21:56 Functions: 205 223 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Kronecker_to_mod	186210
QXQC_to_mod_shallow	14854
QXQM_to_mod_shallow	6720
QXQV_to_mod	22339
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	840905
QXV_QXQ_eval	3241
QXY_QXQ_evalx	371
QX_ZXQV_eval	7595
RgM_to_RgXV	303235
RgM_to_RgXV_reverse	7202
RgM_to_RgXX	23714
RgV_to_RgM	336703
RgV_to_RgX	1501742
RgV_to_RgX_reverse	188283
RgXQC_red	68187
RgXQM_mul	322
RgXQM_red	13195
RgXQV_RgXQ_mul	133
RgXQV_factorback	7118
RgXQV_red	1211
RgXQX_RgXQ_mul	35
RgXQX_RgXQ_translate	33584
RgXQX_divrem	156871
RgXQX_mul	0
RgXQX_powers	0
RgXQX_pseudodivrem	12063
RgXQX_pseudorem	660119
RgXQX_red	508979
RgXQX_sqr	0
RgXQ_matrix_pow	2940
RgXQ_norm	2680
RgXQ_pow	102160
RgXQ_powers	8596
RgXQ_powu	116731
RgXQ_trace	476
RgXV_RgV_eval	2947
RgXV_maxdegree	588
RgXV_prod	0
RgXV_rescale	2401
RgXV_to_RgM	79032
RgXV_unscale	6559
RgXX_to_RgM	322
RgXY_degreex	1387
RgXY_derivx	3836
RgXY_swap	2051
RgXY_swapspec	32767
RgX_RgV_eval	166768
RgX_RgXQV_eval	0
RgX_RgXQ_eval	417521
RgX_RgXnV_eval	966
RgX_RgXn_eval	0
RgX_Rg_add	45363744
RgX_Rg_add_shallow	65102
RgX_Rg_div	30719529
RgX_Rg_divexact	7483412
RgX_Rg_eval_bk	0
RgX_Rg_mul	202878758
RgX_Rg_sub	1226042
RgX_Rg_translate	6064158
RgX_Rg_translate_FpX	0
RgX_Rg_translate_FpXQX	7
RgX_Rg_translate_basecase	5702420
RgX_Rg_translate_fast	6064157
RgX_Rg_translate_i	5702608
RgX_add	145709193
RgX_addmulXn	514764
RgX_addmulXn_shallow	10131643
RgX_addspec	222294
RgX_addspec_shallow	8939618
RgX_affine	30212
RgX_blocks	2788484
RgX_deflate	1181415
RgX_deriv	830470
RgX_digits	3157
RgX_div_by_X_x	265423
RgX_divrem	14233929
RgX_divrem_i	23519675
RgX_divs	2667
RgX_equal	24892503
RgX_even_odd	49757556
RgX_homogenize	18732
RgX_homogenize_deg	1260
RgX_homogenous_evalpow	887905
RgX_inflate	883187
RgX_integXn	56374
RgX_liftred	455393
RgX_mul	107835097
RgX_mul2n	65268
RgX_mulXn	2997279
RgX_mul_FpX	609812
RgX_mul_FpXQX	2079
RgX_mul_QXQX	171133
RgX_mul_fast	121568271
RgX_mul_i	38834121
RgX_mul_normalized	1719207
RgX_mulhigh_i	2671189
RgX_mulhigh_i2	1589510
RgX_muls	3992
RgX_mulspec	40270428
RgX_mulspec_basecase	34204196
RgX_mulspec_basecase_limb	111071815
RgX_neg	9247367
RgX_normalize	39130
RgX_pseudodivrem	11818
RgX_pseudorem	660119
RgX_recip	31388
RgX_recip_i	5206430
RgX_recip_shallow	59388
RgX_recipspec_shallow	2584095
RgX_rem	14716764
RgX_rem_FpX	68327
RgX_rem_FpXQX	70
RgX_rem_QXQX	49851
RgX_rem_fast	14716746
RgX_renormalize_lg	7886625
RgX_rescale	4343462
RgX_rotate_shallow	317037
RgX_shift	1578036
RgX_shift_shallow	177405247
RgX_splitting	43631
RgX_sqr	1373498
RgX_sqr_FpX	1407
RgX_sqr_FpXQX	196
RgX_sqr_QXQX	13425
RgX_sqr_fast	1385650
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	72827995
RgX_to_RgC	13426169
RgX_unscale	51885
RgX_val	3667905
RgX_valrem	80796199
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	2188989
RgXn_div_i	1284113
RgXn_eval	5187
RgXn_exp	0
RgXn_expint	52916
RgXn_inv	807480
RgXn_inv_FpX	91
RgXn_inv_FpXQX	0
RgXn_inv_fast	905091
RgXn_inv_i	905091
RgXn_mul	11061993
RgXn_mul2	9414549
RgXn_mul_basecase	6627987
RgXn_mulhigh	2614799
RgXn_powers	483
RgXn_powu	0
RgXn_powu_i	2286
RgXn_recip_shallow	643038
RgXn_red_shallow	7944007
RgXn_reverse	154
RgXn_sqr	12152
RgXn_sqr2	315
RgXn_sqr_basecase	0
RgXn_sqrhigh	14
RgXn_sqrt	7
RgXspec_kill0	81702183
Rg_RgX_sub	4953322
Rg_get_0	6942779
Rg_get_1	156950330
Rg_to_RgC	1360770
ZXQX_dvd	17804
ZXQ_powers	12145
ZXQ_powu	168507
ZX_unscale	1013197
ZX_unscale2n	1113428
ZX_unscale_div	12997
ZX_unscale_divpow	1393
ZX_z_unscale	1485103
_RgX_divrem	11333
_RgX_mul	0
_ZXQmul	111194
_ZXQsqr	200602
_add	623387
_cmul	1040650
_gen_add	19257653
_gen_cmul	512818
_gen_mul	1844896
_gen_nored	2033649
_gen_one	2074862
_gen_sqr	593313
_gen_sub	0
_gen_zero	24184
_mul	276652
_mulXn	4528
_one	1019726
_oneXn	1939
_pow	88307
_red	724301
_sqr	67319
_sqrXn	11893
_sub	0
_zero	1232
_zeroXn	0
brent_kung_optpow	19590324
do_QXQ_eval	3612
gen_RgXQ_eval_powers	14622312
gen_bkeval	875617
gen_bkeval_powers	12526699
get_Rg_algebra	282220
rem	4260634
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