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tests/tcg/s390x: Add div.c

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Add a basic test to prevent regressions.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20221101111300.2539919-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Ilya Leoshkevich 2022-11-01 12:13:00 +01:00 committed by Richard Henderson
parent 894448ae7d
commit 29b8de001f
2 changed files with 41 additions and 0 deletions
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1
tests/tcg/s390x/Makefile.target
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@ -24,6 +24,7 @@ TESTS+=trap
TESTS+=signals-s390x
TESTS+=branch-relative-long
TESTS+=noexec
TESTS+=div
Z13_TESTS=vistr
$(Z13_TESTS): CFLAGS+=-march=z13 -O2

40
tests/tcg/s390x/div.c Normal file
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@ -0,0 +1,40 @@
#include <assert.h>
#include <stdint.h>
static void test_dr(void)
{
register int32_t r0 asm("r0") = -1;
register int32_t r1 asm("r1") = -4241;
int32_t b = 101, q, r;
asm("dr %[r0],%[b]"
: [r0] "+r" (r0), [r1] "+r" (r1)
: [b] "r" (b)
: "cc");
q = r1;
r = r0;
assert(q == -41);
assert(r == -100);
}
static void test_dlr(void)
{
register uint32_t r0 asm("r0") = 0;
register uint32_t r1 asm("r1") = 4243;
uint32_t b = 101, q, r;
asm("dlr %[r0],%[b]"
: [r0] "+r" (r0), [r1] "+r" (r1)
: [b] "r" (b)
: "cc");
q = r1;
r = r0;
assert(q == 42);
assert(r == 1);
}
int main(void)
{
test_dr();
test_dlr();
}