[RFC PATCH 2/4] tests/tcg: build sha1-vector for SVE and compare

["Alex Bennée" <alex.bennee@linaro.org>]

The aim of this is to test code generation for vectorised operations.
Unfortunately gcc struggles to do much with the messy sha1 code (try
-fopt-info-vec-missed to see why). However it's better than nothing.

We assume the non-vectorised output is gold and baring compiler bugs
the outputs should match.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/tcg/aarch64/Makefile.target | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tests/tcg/aarch64/Makefile.target b/tests/tcg/aarch64/Makefile.target
index 1d967901bd..a03844ce48 100644
--- a/tests/tcg/aarch64/Makefile.target
+++ b/tests/tcg/aarch64/Makefile.target
@@ -50,6 +50,18 @@ sysregs: CFLAGS+=-march=armv8.1-a+sve
 AARCH64_TESTS += sve-ioctls
 sve-ioctls: CFLAGS+=-march=armv8.1-a+sve
 
+# Vector SHA1
+
+sha1-vector: CFLAGS=-march=armv8.1-a+sve -O3
+sha1-vector: sha1.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $< -o $@ $(LDFLAGS)
+
+run-sha1-vector: sha1-vector run-sha1
+	$(call run-test, $<, $(QEMU) $(QEMU_OPTS) $<, "$< on $(TARGET_NAME)")
+	$(call diff-out, sha1-vector, sha1.out)
+
+TESTS += sha1-vector
+
 ifneq ($(HAVE_GDB_BIN),)
 GDB_SCRIPT=$(SRC_PATH)/tests/guest-debug/run-test.py
 
-- 
2.30.2