Tests for Byte-Reverse Halfword, Word and Doubleword
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Tested-by: Fabiano Rosas <farosas@linux.ibm.com>
[AJB: tweak to make rules for skip/plugins]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20210423205757.
1752480-3-matheus.ferst@eldorado.org.br>
Message-Id: <
20210512102051.12134-28-alex.bennee@linaro.org>
endif
bcdsub: CFLAGS += -mpower8-vector
+PPC64_TESTS += byte_reverse
+ifneq ($(DOCKER_IMAGE)$(CROSS_CC_HAS_POWER10),)
+run-byte_reverse: QEMU_OPTS+=-cpu POWER10
+run-plugin-byte_reverse-with-%: QEMU_OPTS+=-cpu POWER10
+else
+byte_reverse:
+ $(call skip-test, "BUILD of $@", "missing compiler support")
+run-byte_reverse:
+ $(call skip-test, "RUN of byte_reverse", "not built")
+run-plugin-byte_reverse-with-%:
+ $(call skip-test, "RUN of byte_reverse ($*)", "not built")
+endif
+
TESTS += $(PPC64_TESTS)
endif
bcdsub: CFLAGS += -mpower8-vector
+PPC64LE_TESTS += byte_reverse
+ifneq ($(DOCKER_IMAGE)$(CROSS_CC_HAS_POWER10),)
+run-byte_reverse: QEMU_OPTS+=-cpu POWER10
+run-plugin-byte_reverse-with-%: QEMU_OPTS+=-cpu POWER10
+else
+byte_reverse:
+ $(call skip-test, "BUILD of $@", "missing compiler support")
+run-byte_reverse:
+ $(call skip-test, "RUN of byte_reverse", "not built")
+run-plugin-byte_reverse-with-%:
+ $(call skip-test, "RUN of byte_reverse ($*)", "not built")
+endif
+
TESTS += $(PPC64LE_TESTS)
--- /dev/null
+#include <assert.h>
+
+int main(void)
+{
+ unsigned long var;
+
+ var = 0xFEDCBA9876543210;
+ asm("brh %0, %0" : "+r"(var));
+ assert(var == 0xDCFE98BA54761032);
+
+ var = 0xFEDCBA9876543210;
+ asm("brw %0, %0" : "+r"(var));
+ assert(var == 0x98BADCFE10325476);
+
+ var = 0xFEDCBA9876543210;
+ asm("brd %0, %0" : "+r"(var));
+ assert(var == 0x1032547698BADCFE);
+
+ return 0;
+}
+