[PATCH] tests/tcg: cover lzcnt/tzcnt/popcnt

[PATCH] tests/tcg: cover lzcnt/tzcnt/popcnt

[Paolo Bonzini]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 tests/tcg/i386/test-i386.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tests/tcg/i386/test-i386.c b/tests/tcg/i386/test-i386.c
index 864c4e620d5..ce3bf74b5a8 100644
--- a/tests/tcg/i386/test-i386.c
+++ b/tests/tcg/i386/test-i386.c
@@ -715,6 +715,30 @@ void test_mul(void)
     printf("%-10s A=" FMTLX " R=" FMTLX " %ld\n", #op, val, res, resz);\
 }
 
+void test_xcnt(void)
+{
+    TEST_BSX(tzcntw, "w", 0);
+    TEST_BSX(tzcntw, "w", 0x12340128);
+    TEST_BSX(lzcntw, "w", 0);
+    TEST_BSX(lzcntw, "w", 0x12340128);
+    TEST_BSX(popcntw, "w", 0);
+    TEST_BSX(popcntw, "w", 0x12340128);
+    TEST_BSX(tzcntl, "k", 0);
+    TEST_BSX(tzcntl, "k", 0x00340128);
+    TEST_BSX(lzcntl, "k", 0);
+    TEST_BSX(lzcntl, "k", 0x00340128);
+    TEST_BSX(popcntl, "k", 0);
+    TEST_BSX(popcntl, "k", 0x00340128);
+#if defined(__x86_64__)
+    TEST_BSX(tzcntq, "", 0);
+    TEST_BSX(tzcntq, "", 0x003401281234);
+    TEST_BSX(lzcntq, "", 0);
+    TEST_BSX(lzcntq, "", 0x003401281234);
+    TEST_BSX(popcntq, "", 0);
+    TEST_BSX(popcntq, "", 0x003401281234);
+#endif
+}
+
 void test_bsx(void)
 {
     TEST_BSX(bsrw, "w", 0);
@@ -2162,6 +2186,7 @@ int main(int argc, char **argv)
         func();
     }
     test_bsx();
+    test_xcnt();
     test_mul();
     test_jcc();
     test_loop();
-- 
2.45.0

Re: [PATCH] tests/tcg: cover lzcnt/tzcnt/popcnt

[Zhao Liu]

On Thu, May 09, 2024 at 05:25:32PM +0200, Paolo Bonzini wrote:
> Date: Thu,  9 May 2024 17:25:32 +0200
> From: Paolo Bonzini <pbonzini@redhat.com>
> Subject: [PATCH] tests/tcg: cover lzcnt/tzcnt/popcnt
> X-Mailer: git-send-email 2.45.0
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  tests/tcg/i386/test-i386.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>