From: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Thu, 14 Nov 2024 16:15:09 +0000 (+0000)
Subject: aarch64: Add non-local goto and jump tests for GCS
X-Git-Tag: basepoints/gcc-16~4285
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=89c7ebdee1177ee8131bb50dc2c8fc6217c66d9e;p=thirdparty%2Fgcc.git

aarch64: Add non-local goto and jump tests for GCS

These are scan asm tests only, relying on existing execution tests
for runtime coverage.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/gcs-nonlocal-1.c: New test.
	* gcc.target/aarch64/gcs-nonlocal-1-track-speculation.c: New test.
	* gcc.target/aarch64/gcs-nonlocal-2.c: New test.
	* gcc.target/aarch64/gcs-nonlocal-2-track-speculation.c: New test.
	* gcc.target/aarch64/gcs-nonlocal-1.h: New header file.
	* gcc.target/aarch64/gcs-nonlocal-2.h: New header file.
---

diff --git a/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1-track-speculation.c b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1-track-speculation.c
new file mode 100644
index 000000000000..4ee05ca55035
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1-track-speculation.c
@@ -0,0 +1,7 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mbranch-protection=gcs -mtrack-speculation" } */
+/* { dg-final { scan-assembler-times "hint\\t40 // chkfeat x16" 2 } } */
+/* { dg-final { scan-assembler-times "mrs\\tx\[0-9\]+, s3_3_c2_c5_1 // gcspr_el0" 2 } } */
+/* { dg-final { scan-assembler-times "sysl\\txzr, #3, c7, c7, #1 // gcspopm" 1 } } */
+
+#include "gcs-nonlocal-1.h"
diff --git a/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1.c b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1.c
new file mode 100644
index 000000000000..57d865577add
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1.c
@@ -0,0 +1,7 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mbranch-protection=gcs" } */
+/* { dg-final { scan-assembler-times "hint\\t40 // chkfeat x16" 2 } } */
+/* { dg-final { scan-assembler-times "mrs\\tx\[0-9\]+, s3_3_c2_c5_1 // gcspr_el0" 2 } } */
+/* { dg-final { scan-assembler-times "sysl\\txzr, #3, c7, c7, #1 // gcspopm" 1 } } */
+
+#include "gcs-nonlocal-1.h"
diff --git a/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1.h b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1.h
new file mode 100644
index 000000000000..6a3e47d2db0e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-1.h
@@ -0,0 +1,20 @@
+
+int bar1 (int);
+int bar2 (int);
+
+void foo (int cmd)
+{
+  __label__ start;
+  int x = 0;
+
+  void nonlocal_goto (void)
+  {
+    x++;
+    goto start;
+  }
+
+start:
+  while (bar1 (x))
+    if (bar2 (x))
+      nonlocal_goto ();
+}
diff --git a/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2-track-speculation.c b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2-track-speculation.c
new file mode 100644
index 000000000000..fdf9e6121428
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2-track-speculation.c
@@ -0,0 +1,7 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mbranch-protection=gcs -mtrack-speculation" } */
+/* { dg-final { scan-assembler-times "hint\\t40 // chkfeat x16" 2 } } */
+/* { dg-final { scan-assembler-times "mrs\\tx\[0-9\]+, s3_3_c2_c5_1 // gcspr_el0" 2 } } */
+/* { dg-final { scan-assembler-times "sysl\\txzr, #3, c7, c7, #1 // gcspopm" 1 } } */
+
+#include "gcs-nonlocal-2.h"
diff --git a/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2.c b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2.c
new file mode 100644
index 000000000000..2414332906ee
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2.c
@@ -0,0 +1,7 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mbranch-protection=gcs" } */
+/* { dg-final { scan-assembler-times "hint\\t40 // chkfeat x16" 2 } } */
+/* { dg-final { scan-assembler-times "mrs\\tx\[0-9\]+, s3_3_c2_c5_1 // gcspr_el0" 2 } } */
+/* { dg-final { scan-assembler-times "sysl\\txzr, #3, c7, c7, #1 // gcspopm" 1 } } */
+
+#include "gcs-nonlocal-2.h"
diff --git a/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2.h b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2.h
new file mode 100644
index 000000000000..dd6e307b4bda
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/gcs-nonlocal-2.h
@@ -0,0 +1,16 @@
+
+void longj (void *buf)
+{
+  __builtin_longjmp (buf, 1);
+}
+
+void foo (void);
+void bar (void);
+
+void setj (void *buf)
+{
+  if (__builtin_setjmp (buf))
+    foo ();
+  else
+    bar ();
+}