8 files changed, 59 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.target/i386/pr82942-2.c b/gcc/testsuite/gcc.target/i386/pr82942-2.c
index cb0e337113e..ddb4e689659 100644
--- a/gcc/testsuite/gcc.target/i386/pr82942-2.c
+++ b/gcc/testsuite/gcc.target/i386/pr82942-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-mavx512f -mavx512er -O2" } */
+/* { dg-options "-mavx512f -mavx512er -mtune=knl -O2" } */
 
 #include "pr82941-1.c"
 
diff --git a/gcc/testsuite/gcc.target/i386/pr82990-1.c b/gcc/testsuite/gcc.target/i386/pr82990-1.c
new file mode 100644
index 00000000000..ff1d6d40eb2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr82990-1.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=knl -mvzeroupper" } */
+
+#include <immintrin.h>
+
+extern __m512d y, z;
+
+void
+pr82941 ()
+{
+  z = y;
+}
+
+/* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr82990-2.c b/gcc/testsuite/gcc.target/i386/pr82990-2.c
new file mode 100644
index 00000000000..0d3cb2333dd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr82990-2.c
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=skylake-avx512 -mno-vzeroupper" } */
+
+#include "pr82941-1.c"
+
+/* { dg-final { scan-assembler-not "vzeroupper" } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr82990-3.c b/gcc/testsuite/gcc.target/i386/pr82990-3.c
new file mode 100644
index 00000000000..201fa98d8d4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr82990-3.c
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512f -mavx512er -mvzeroupper -O2" } */
+
+#include "pr82941-1.c"
+
+/* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr82990-4.c b/gcc/testsuite/gcc.target/i386/pr82990-4.c
new file mode 100644
index 00000000000..09f161c7291
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr82990-4.c
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512f -mno-avx512er -mno-vzeroupper -O2" } */
+
+#include "pr82941-1.c"
+
+/* { dg-final { scan-assembler-not "vzeroupper" } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr82990-5.c b/gcc/testsuite/gcc.target/i386/pr82990-5.c
new file mode 100644
index 00000000000..9932bdc5375
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr82990-5.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mavx512f -mtune=generic" } */
+
+#include <immintrin.h>
+
+extern __m512d y, z;
+
+void
+pr82941 ()
+{
+  z = y;
+}
+
+/* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr82990-6.c b/gcc/testsuite/gcc.target/i386/pr82990-6.c
new file mode 100644
index 00000000000..063a61c111d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr82990-6.c
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=skylake-avx512 -mtune=knl" } */
+
+#include "pr82941-1.c"
+
+/* { dg-final { scan-assembler-not "vzeroupper" } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr82990-7.c b/gcc/testsuite/gcc.target/i386/pr82990-7.c
new file mode 100644
index 00000000000..dedde8b854b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr82990-7.c
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=skylake-avx512 -mtune=generic -mtune-ctrl=^emit_vzeroupper" } */
+
+#include "pr82941-1.c"
+
+/* { dg-final { scan-assembler-not "vzeroupper" } } */