x86: Add testcases for PR target/80566

	PR target/80566
	* g++.target/i386/pr80566-1.C: New test.
	* g++.target/i386/pr80566-2.C: Likewise.

diff --git a/gcc/testsuite/g++.target/i386/pr80566-1.C b/gcc/testsuite/g++.target/i386/pr80566-1.C
new file mode 100644 (file)
index 0000000..753f974
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/pr80566-1.C
@@ -0,0 +1,15 @@
+// { dg-do compile }
+// { dg-options "-O2 -march=haswell" }
+
+#include <cstring>
+
+int *
+foo()
+{
+  int * p = new int[16];
+  memset(p,0,16*sizeof(int));
+  return p;
+}
+
+/* { dg-final { scan-assembler-times "vpxor\[ \\t\]+\[^\n\]*%xmm" 1 } } */
+/* { dg-final { scan-assembler-times "vmovdqu\[ \\t\]+\[^\n\]*%ymm" 2 } } */

diff --git a/gcc/testsuite/g++.target/i386/pr80566-2.C b/gcc/testsuite/g++.target/i386/pr80566-2.C
new file mode 100644 (file)
index 0000000..2a2e82d
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/pr80566-2.C
@@ -0,0 +1,14 @@
+// { dg-do compile }
+// { dg-options "-O2 -march=haswell" }
+
+#include <cstring>
+
+int *
+foo(int * q)
+{
+  int * p = new int[16];
+  memcpy(q,p,16*sizeof(int));
+  return p;
+}
+
+/* { dg-final { scan-assembler-times "vmovdqu\[ \\t\]+\[^\n\]*%ymm" 4 } } */