[PATCH v2 05/10] Hexagon (tests/tcg/hexagon) Add tests for vreg multiple writes

[Taylor Simpson]

Signed-off-by: Taylor Simpson <ltaylorsimp...@gmail.com>
---
 tests/tcg/hexagon/multiple-writes.c | 46 +++++++++++++++++++++++++++++
 tests/tcg/hexagon/meson.build       |  2 +-
 2 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/tests/tcg/hexagon/multiple-writes.c 
b/tests/tcg/hexagon/multiple-writes.c
index 4305903547..b93f2ab32e 100644
--- a/tests/tcg/hexagon/multiple-writes.c
+++ b/tests/tcg/hexagon/multiple-writes.c
@@ -199,6 +199,49 @@ static int test_post_increment3(void)
     return sig;
 }
 
+static int test_vreg_legal_predicated(void)
+{
+    int sig;
+
+    asm volatile(
+        "r0 = #0\n"
+        "r1 = ##1f\n"
+        "memw(%1) = r1\n"
+        "r2 = #7\n"
+        "r3 = #13\n"
+        "p0 = cmp.eq(r2, r3)\n"
+        "{\n"
+        "    if (p0) v0 = v1\n"
+        "    if (!p0) v0 = v2\n"
+        "}\n"
+        "1:\n"
+        "%0 = #23\n"
+        : "=r"(sig)
+        : "r"(&resume_pc)
+        : "r0", "r1", "r2", "r3", "p0", "v0", "v1", "memory");
+
+    return sig;
+}
+
+static int test_vreg_illegal(void)
+{
+    int sig;
+
+    asm volatile(
+        "r0 = #0\n"
+        "r1 = ##1f\n"
+        "memw(%1) = r1\n"
+        ".word 0x1e0361e0    /* { v0 = v1 */\n"
+        ".word 0x1e03e2e0    /*   v0 = v2  } */\n"
+        "1:\n"
+        "%0 = r0\n"
+        : "=r"(sig)
+        : "r"(&resume_pc)
+        : "r0", "r1", "memory");
+
+    return sig;
+}
+
 int main()
 {
     struct sigaction act;
@@ -224,6 +267,9 @@ int main()
     assert(test_post_increment2() == SIGILL);
     assert(test_post_increment3() == SIGILL);
 
+    assert(test_vreg_legal_predicated() == 23);
+    assert(test_vreg_illegal() == SIGILL);
+
     puts("PASS");
     return EXIT_SUCCESS;
 }
diff --git a/tests/tcg/hexagon/meson.build b/tests/tcg/hexagon/meson.build
index 4a2826c427..08c6e34c20 100644
--- a/tests/tcg/hexagon/meson.build
+++ b/tests/tcg/hexagon/meson.build
@@ -54,7 +54,7 @@ tests += {
   'load_unpack.c': {'cflags': cflags},
   # Build this test with -mv71 to exercise the CABAC instruction
   'misc.c': {'cflags': [cflags, '-mv71', '-O2']},
-  'multiple-writes.c': {'cflags': cflags},
+  'multiple-writes.c': {'cflags': [cflags, '-mhvx']},
   'overflow.c': {'cflags': cflags, 'exe_name': 'hex-overflow'},
   'preg_alias.c': {'cflags': cflags},
   'dual_stores.c': {'cflags': cflags},
-- 
2.43.0