[gcc(refs/vendors/riscv/heads/ext-dce)] Added tests for core_bench_list, core_list_init, core_init_matrix, matrix_add_const

[gcc(refs/vendors/riscv/heads/ext-dce)] Added tests for core_bench_list, core_list_init, core_init_matrix, matrix_add_const

[Jivan Hakobyan]

https://gcc.gnu.org/g:899a2944d19a381f4161ca6757ee0def911c55c4

commit 899a2944d19a381f4161ca6757ee0def911c55c4
Author: Jivan Hakobyan <jivanhakobyan9@gmail.com>
Date:   Wed Nov 15 17:16:45 2023 +0400

    Added tests for core_bench_list, core_list_init, core_init_matrix, matrix_add_const

Diff:
---
 gcc/testsuite/gcc.dg/core_bench_list.c  | 15 +++++++++++++++
 gcc/testsuite/gcc.dg/core_init_matrix.c | 17 +++++++++++++++++
 gcc/testsuite/gcc.dg/core_list_init.c   | 18 ++++++++++++++++++
 gcc/testsuite/gcc.dg/matrix_add_const.c | 11 +++++++++++
 4 files changed, 61 insertions(+)

diff --git a/gcc/testsuite/gcc.dg/core_bench_list.c b/gcc/testsuite/gcc.dg/core_bench_list.c
new file mode 100644
index 00000000000..957e9c841ed
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/core_bench_list.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-rtl-ext_dce" } */
+/* { dg-final { scan-rtl-dump {Successfully transformed} "ext_dce" } } */
+
+short
+core_bench_list (int N) {
+
+  short a = 0;
+  for (int i = 0; i < 4; i++) {
+    if (i > N) {
+      a++;
+    }
+  }
+  return a * 4;
+}
diff --git a/gcc/testsuite/gcc.dg/core_init_matrix.c b/gcc/testsuite/gcc.dg/core_init_matrix.c
new file mode 100644
index 00000000000..9289244c71f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/core_init_matrix.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-rtl-ext_dce" } */
+/* { dg-final { scan-rtl-dump {Successfully transformed} "ext_dce" } } */
+
+void
+core_init_matrix(short* A, short* B, int seed) {
+  int  order = 1;
+
+  for (int i = 0; i < seed; i++) {
+    for (int j = 0; j < seed; j++) {
+      short val = seed + order;
+      B[i] = val;
+      A[i] = val;
+      order++;
+    }
+  }
+}
diff --git a/gcc/testsuite/gcc.dg/core_list_init.c b/gcc/testsuite/gcc.dg/core_list_init.c
new file mode 100644
index 00000000000..2f36dae85aa
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/core_list_init.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-rtl-ext_dce" } */
+/* { dg-final { scan-rtl-dump {Successfully transformed} "ext_dce" } } */
+
+unsigned short
+core_list_init (int size, short seed) {
+
+  for (int i = 0; i < size; i++) {
+    unsigned short datpat = ((unsigned short)(seed ^ i) & 0xf);
+    unsigned short dat = (datpat << 3) | (i & 0x7);
+    if (i > seed) {
+      return dat;
+    }
+  }
+
+  return 0;
+
+}
diff --git a/gcc/testsuite/gcc.dg/matrix_add_const.c b/gcc/testsuite/gcc.dg/matrix_add_const.c
new file mode 100644
index 00000000000..9a2dd53b17a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/matrix_add_const.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-rtl-ext_dce" } */
+/* { dg-final { scan-rtl-dump {Successfully transformed} "ext_dce" } } */
+
+void
+matrix_add_const(int N, short *A, short val)
+{
+    for (int j = 0; j < N; j++) {
+      A[j] += val;
+    }
+}