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 30365-beea1ff998) Lines: 1630 1786 91.3 % Date: 2025-07-02 09:21:24 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
_zero	1232
RgX_homogenize_deg	1260
RgXY_degreex	1387
ZX_unscale_divpow	1393
RgX_sqr_FpX	1407
RgXQV_red	1414
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	17734
RgX_homogenize	18732
QXQV_to_mod	22341
RgM_to_RgXX	23679
_gen_zero	24184
RgX_affine	30212
RgX_recip	31388
RgXY_swapspec	32771
RgXQX_RgXQ_translate	33584
QXQX_to_mod	37471
RgX_sqr_i	37961
RgX_sqrspec_basecase	38000
RgX_sqrspec	38039
RgX_normalize	39158
RgX_splitting	43631
RgX_rem_QXQX	49851
RgX_unscale	51885
RgXn_expint	52920
RgX_integXn	56377
RgX_recip_shallow	59388
RgX_Rg_add_shallow	65103
RgX_mul2n	65268
RgXQC_red	68187
RgX_rem_FpX	68327
_sqr	74878
RgXV_to_RgM	79032
_pow	88307
RgX_sqrspec_basecase_limb	100082
RgXQ_pow	102160
zero_FpX_mod	102627
_ZXQmul	111194
RgXQ_powu	120497
RgXQX_divrem	156857
RgX_RgV_eval	166768
ZXQ_powu	168504
QXQ_to_mod	169946
RgX_mul_QXQX	170888
Kronecker_to_mod	185965
RgV_to_RgX_reverse	188283
_ZXQsqr	200605
QXQX_to_mod_shallow	204096
RgX_addspec	222294
RgX_div_by_X_x	265421
_mul	281006
get_Rg_algebra	282197
RgM_to_RgXV	303220
RgX_rotate_shallow	317037
RgV_to_RgM	336704
RgX_RgXQ_eval	417528
RgX_liftred	454903
RgXQX_red	508139
_gen_cmul	512818
RgX_addmulXn	514764
RgXn_div	584450
_gen_sqr	593298
RgX_mul_FpX	609812
_add	623391
RgXn_recip_shallow	643043
RgX_pseudorem	660110
RgXQX_pseudorem	660111
_red	724314
RgXn_inv	807478
RgX_deriv	830489
QXQ_to_mod_shallow	840695
RgX_valrem_inexact	852252
gen_bkeval	875594
RgX_inflate	885504
RgX_homogenous_evalpow	887856
RgXn_inv_fast	905087
RgXn_inv_i	905087
ZX_unscale	1013197
_one	1019737
_cmul	1040664
ZX_unscale2n	1113395
RgX_deflate	1181410
RgX_Rg_sub	1226057
RgXn_div_fast	1284113
RgXn_div_i	1284113
Rg_to_RgC	1360771
RgX_sqr	1371379
RgX_sqr_fast	1383528
ZX_z_unscale	1510535
RgV_to_RgX	1516811
RgX_shift	1578036
RgX_mulhigh_i2	1589510
RgX_mul_normalized	1719198
_gen_mul	1844920
_gen_nored	2033580
_gen_one	2074848
RgXn_div_gen	2188986
RgX_recipspec_shallow	2584034
RgXn_mulhigh	2614799
RgX_mulhigh_i	2671190
RgX_blocks	2788484
RgX_mulXn	2997279
RgX_val	3667905
rem	4260589
RgX_rescale	4343354
Rg_RgX_sub	4953060
RgX_recip_i	5206074
RgX_Rg_translate_basecase	5702259
RgX_Rg_translate_i	5702449
RgX_Rg_translate_fast	6064015
RgX_Rg_translate	6064018
RgXn_mul_basecase	6633454
Rg_get_0	6942982
RgX_Rg_divexact	7483743
RgX_renormalize_lg	7886629
RgXn_red_shallow	7944234
RgX_addspec_shallow	8939288
RgX_neg	9250086
RgXn_mul2	9420016
RgX_addmulXn_shallow	10131172
RgXn_mul	11067687
gen_bkeval_powers	12525767
RgX_to_RgC	13446899
RgX_divrem	14236208
gen_RgXQ_eval_powers	14621516
RgX_rem_fast	14733735
RgX_rem	14733745
_gen_add	19266129
brent_kung_optpow	19586663
RgX_divrem_i	23521536
RgX_equal	24797044
RgX_Rg_div	30725222
RgX_mulspec_basecase	34203638
RgX_mul_i	38833609
RgX_mulspec	40269869
RgX_Rg_add	45393398
RgX_even_odd	49749400
RgX_sub	72817914
RgX_valrem	80790980
RgXspec_kill0	81711964
RgX_mul	107918426
RgX_mulspec_basecase_limb	111249988
RgX_mul_fast	121657312
RgX_add	145997569
Rg_get_1	156955798
RgX_shift_shallow	177409041
RgX_Rg_mul	203080195

Generated by: LCOV version 1.16