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tests/tcg/s390x: Add C(G)HRL test 

Test COMPARE HALFWORD RELATIVE LONG instructions.
Test that the bytes following the second operand do not affect the
instruction.
Test the sign extension performed on the second operand.

Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20230310114157.3024170-3-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Nina Schoetterl-Glausch 2023-03-10 12:41:57 +01:00 committed by Thomas Huth
parent 54fce97cfc
commit 410791228c
2 changed files with 81 additions and 0 deletions
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1
tests/tcg/s390x/Makefile.target
View File

@ -28,6 +28,7 @@ TESTS+=div
TESTS+=clst
TESTS+=long-double
TESTS+=cdsg
TESTS+=chrl
cdsg: CFLAGS+=-pthread
cdsg: LDFLAGS+=-pthread

80
tests/tcg/s390x/chrl.c Normal file
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@ -0,0 +1,80 @@
#include <stdlib.h>
#include <assert.h>
#include <stdint.h>
static void test_chrl(void)
{
uint32_t program_mask, cc;
asm volatile (
".pushsection .rodata\n"
"0:\n\t"
".short 1, 0x8000\n\t"
".popsection\n\t"
"chrl %[r], 0b\n\t"
"ipm %[program_mask]\n"
: [program_mask] "=r" (program_mask)
: [r] "r" (1)
);
cc = program_mask >> 28;
assert(!cc);
asm volatile (
".pushsection .rodata\n"
"0:\n\t"
".short -1, 0x8000\n\t"
".popsection\n\t"
"chrl %[r], 0b\n\t"
"ipm %[program_mask]\n"
: [program_mask] "=r" (program_mask)
: [r] "r" (-1)
);
cc = program_mask >> 28;
assert(!cc);
}
static void test_cghrl(void)
{
uint32_t program_mask, cc;
asm volatile (
".pushsection .rodata\n"
"0:\n\t"
".short 1, 0x8000, 0, 0\n\t"
".popsection\n\t"
"cghrl %[r], 0b\n\t"
"ipm %[program_mask]\n"
: [program_mask] "=r" (program_mask)
: [r] "r" (1L)
);
cc = program_mask >> 28;
assert(!cc);
asm volatile (
".pushsection .rodata\n"
"0:\n\t"
".short -1, 0x8000, 0, 0\n\t"
".popsection\n\t"
"cghrl %[r], 0b\n\t"
"ipm %[program_mask]\n"
: [program_mask] "=r" (program_mask)
: [r] "r" (-1L)
);
cc = program_mask >> 28;
assert(!cc);
}
int main(void)
{
test_chrl();
test_cghrl();
return EXIT_SUCCESS;
}