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Hexagon (tests/tcg/hexagon) update overflow test 

Add a test that sets USR multiple times in a packet

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20220210021556.9217-9-tsimpson@quicinc.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Taylor Simpson 2022-02-09 18:15:52 -08:00
parent 2479540fff
commit 8576e7ecae
1 changed files with 60 additions and 1 deletions
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61
tests/tcg/hexagon/overflow.c
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@ -1,5 +1,5 @@
/*
* Copyright(c) 2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
* Copyright(c) 2021-2022 Qualcomm Innovation Center, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -72,6 +72,20 @@ int read_usr_overflow(void)
return result & 1;
}
int get_usr_overflow(int usr)
{
return usr & 1;
}
int get_usr_fp_invalid(int usr)
{
return (usr >> 1) & 1;
}
int get_usr_lpcfg(int usr)
{
return (usr >> 8) & 0x3;
}
jmp_buf jmp_env;
int usr_overflow;
@ -82,6 +96,49 @@ static void sig_segv(int sig, siginfo_t *info, void *puc)
longjmp(jmp_env, 1);
}
static void test_packet(void)
{
int convres;
int satres;
int usr;
asm("r2 = usr\n\t"
"r2 = clrbit(r2, #0)\n\t" /* clear overflow bit */
"r2 = clrbit(r2, #1)\n\t" /* clear FP invalid bit */
"usr = r2\n\t"
"{\n\t"
" %0 = convert_sf2uw(%3):chop\n\t"
" %1 = satb(%4)\n\t"
"}\n\t"
"%2 = usr\n\t"
: "=r"(convres), "=r"(satres), "=r"(usr)
: "r"(0x6a051b86), "r"(0x0410eec0)
: "r2", "usr");
check(convres, 0xffffffff);
check(satres, 0x7f);
check(get_usr_overflow(usr), 1);
check(get_usr_fp_invalid(usr), 1);
asm("r2 = usr\n\t"
"r2 = clrbit(r2, #0)\n\t" /* clear overflow bit */
"usr = r2\n\t"
"%2 = r2\n\t"
"p3 = sp3loop0(1f, #1)\n\t"
"1:\n\t"
"{\n\t"
" %0 = satb(%2)\n\t"
"}:endloop0\n\t"
"%1 = usr\n\t"
: "=r"(satres), "=r"(usr)
: "r"(0x0410eec0)
: "r2", "usr", "p3", "sa0", "lc0");
check(satres, 0x7f);
check(get_usr_overflow(usr), 1);
check(get_usr_lpcfg(usr), 2);
}
int main()
{
struct sigaction act;
@ -102,6 +159,8 @@ int main()
check(usr_overflow, 0);
test_packet();
puts(err ? "FAIL" : "PASS");
return err ? EXIT_FAILURE : EXIT_SUCCESS;
}