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
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_Rg_translate_FpX	0
RgX_sqrhigh_i	0
RgX_sqrhigh_i2	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
RgX_Rg_translate_FpXQX	7
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
RgXn_sqr2	315
RgXQM_mul	322
RgXX_to_RgM	322
QXY_QXQ_evalx	371
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_norm	2680
RgXQ_matrix_pow	2940
RgXV_RgV_eval	2947
RgX_digits	3157
QXV_QXQ_eval	3241
do_QXQ_eval	3612
RgXY_derivx	3836
RgX_muls	3992
_mulXn	4528
RgXn_eval	5187
RgXV_unscale	6559
QXQM_to_mod_shallow	6720
RgXQV_factorback	7118
RgM_to_RgXV_reverse	7202
QX_ZXQV_eval	7595
RgXQ_powers	8596
QXQ_powers	9590
_RgX_divrem	11333
RgX_pseudodivrem	11818
_sqrXn	11893
RgXQX_pseudodivrem	12063
ZXQ_powers	12145
RgXn_sqr	12152
QXQXV_to_mod	12733
ZX_unscale_div	12997
RgXQM_red	13195
RgX_sqr_QXQX	13425
QXQC_to_mod_shallow	14854
ZXQX_dvd	17804
RgX_homogenize	18732
QXQV_to_mod	22339
RgM_to_RgXX	23714
_gen_zero	24184
RgX_affine	30212
RgX_recip	31388
RgXY_swapspec	32767
RgXQX_RgXQ_translate	33584
QXQX_to_mod	37471
RgX_sqr_i	37961
RgX_sqrspec_basecase	38000
RgX_sqrspec	38039
RgX_normalize	39130
RgX_splitting	43631
RgX_rem_QXQX	49851
RgX_unscale	51885
RgXn_expint	52916
RgX_integXn	56374
RgX_recip_shallow	59388
RgX_Rg_add_shallow	65102
RgX_mul2n	65268
_sqr	67319
RgXQC_red	68187
RgX_rem_FpX	68327
RgXV_to_RgM	79032
_pow	88307
RgX_sqrspec_basecase_limb	100082
RgXQ_pow	102160
zero_FpX_mod	102627
_ZXQmul	111194
RgXQ_powu	116731
RgXQX_divrem	156871
RgX_RgV_eval	166768
ZXQ_powu	168507
QXQ_to_mod	169946
RgX_mul_QXQX	171133
Kronecker_to_mod	186210
RgV_to_RgX_reverse	188283
_ZXQsqr	200602
QXQX_to_mod_shallow	204271
RgX_addspec	222294
RgX_div_by_X_x	265423
_mul	276652
get_Rg_algebra	282220
RgM_to_RgXV	303235
RgX_rotate_shallow	317037
RgV_to_RgM	336703
RgX_RgXQ_eval	417521
RgX_liftred	455393
RgXQX_red	508979
_gen_cmul	512818
RgX_addmulXn	514764
RgXn_div	584450
_gen_sqr	593313
RgX_mul_FpX	609812
_add	623387
RgXn_recip_shallow	643038
RgXQX_pseudorem	660119
RgX_pseudorem	660119
_red	724301
RgXn_inv	807480
RgX_deriv	830470
QXQ_to_mod_shallow	840905
RgX_valrem_inexact	852252
gen_bkeval	875617
RgX_inflate	883187
RgX_homogenous_evalpow	887905
RgXn_inv_fast	905091
RgXn_inv_i	905091
ZX_unscale	1013197
_one	1019726
_cmul	1040650
ZX_unscale2n	1113428
RgX_deflate	1181415
RgX_Rg_sub	1226042
RgXn_div_fast	1284113
RgXn_div_i	1284113
Rg_to_RgC	1360770
RgX_sqr	1373498
RgX_sqr_fast	1385650
ZX_z_unscale	1485103
RgV_to_RgX	1501742
RgX_shift	1578036
RgX_mulhigh_i2	1589510
RgX_mul_normalized	1719207
_gen_mul	1844896
_gen_nored	2033649
_gen_one	2074862
RgXn_div_gen	2188989
RgX_recipspec_shallow	2584095
RgXn_mulhigh	2614799
RgX_mulhigh_i	2671189
RgX_blocks	2788484
RgX_mulXn	2997279
RgX_val	3667905
rem	4260634
RgX_rescale	4343462
Rg_RgX_sub	4953322
RgX_recip_i	5206430
RgX_Rg_translate_basecase	5702420
RgX_Rg_translate_i	5702608
RgX_Rg_translate_fast	6064157
RgX_Rg_translate	6064158
RgXn_mul_basecase	6627987
Rg_get_0	6942779
RgX_Rg_divexact	7483412
RgX_renormalize_lg	7886625
RgXn_red_shallow	7944007
RgX_addspec_shallow	8939618
RgX_neg	9247367
RgXn_mul2	9414549
RgX_addmulXn_shallow	10131643
RgXn_mul	11061993
gen_bkeval_powers	12526699
RgX_to_RgC	13426169
RgX_divrem	14233929
gen_RgXQ_eval_powers	14622312
RgX_rem_fast	14716746
RgX_rem	14716764
_gen_add	19257653
brent_kung_optpow	19590324
RgX_divrem_i	23519675
RgX_equal	24892503
RgX_Rg_div	30719529
RgX_mulspec_basecase	34204196
RgX_mul_i	38834121
RgX_mulspec	40270428
RgX_Rg_add	45363744
RgX_even_odd	49757556
RgX_sub	72827995
RgX_valrem	80796199
RgXspec_kill0	81702183
RgX_mul	107835097
RgX_mulspec_basecase_limb	111071815
RgX_mul_fast	121568271
RgX_add	145709193
Rg_get_1	156950330
RgX_shift_shallow	177405247
RgX_Rg_mul	202878758

Generated by: LCOV version 1.16