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From: Szabolcs Nagy <nsz@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org
Subject: [gcc(refs/vendors/ARM/heads/gcs)] aarch64: Add __builtin_aarch64_chkfeat tests
Date: Wed, 10 Apr 2024 10:48:18 +0000 (GMT)	[thread overview]
Message-ID: <20240410104818.9A07C3858288@sourceware.org> (raw)

https://gcc.gnu.org/g:0c0ee07e8b10e071c5b88fbae6f109778a4e578c

commit 0c0ee07e8b10e071c5b88fbae6f109778a4e578c
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date:   Fri Jun 2 16:15:25 2023 +0100

    aarch64: Add __builtin_aarch64_chkfeat tests
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/aarch64/chkfeat-1.c: New test.
            * gcc.target/aarch64/chkfeat-2.c: New test.

Diff:
---
 gcc/testsuite/gcc.target/aarch64/chkfeat-1.c | 75 ++++++++++++++++++++++++++++
 gcc/testsuite/gcc.target/aarch64/chkfeat-2.c | 15 ++++++
 2 files changed, 90 insertions(+)

diff --git a/gcc/testsuite/gcc.target/aarch64/chkfeat-1.c b/gcc/testsuite/gcc.target/aarch64/chkfeat-1.c
new file mode 100644
index 00000000000..2fae81e740f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/chkfeat-1.c
@@ -0,0 +1,75 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mbranch-protection=none" } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
+
+/*
+**foo1:
+**	mov	x16, 1
+**	hint	40 // chkfeat x16
+**	mov	x0, x16
+**	ret
+*/
+unsigned long long
+foo1 (void)
+{
+  return __builtin_aarch64_chkfeat (1);
+}
+
+/*
+**foo2:
+**	mov	x16, 1
+**	movk	x16, 0x5678, lsl 32
+**	movk	x16, 0x1234, lsl 48
+**	hint	40 // chkfeat x16
+**	mov	x0, x16
+**	ret
+*/
+unsigned long long
+foo2 (void)
+{
+  return __builtin_aarch64_chkfeat (0x1234567800000001);
+}
+
+/*
+**foo3:
+**	mov	x16, x0
+**	hint	40 // chkfeat x16
+**	mov	x0, x16
+**	ret
+*/
+unsigned long long
+foo3 (unsigned long long x)
+{
+  return __builtin_aarch64_chkfeat (x);
+}
+
+/*
+**foo4:
+**	ldr	x16, \[x0\]
+**	hint	40 // chkfeat x16
+**	str	x16, \[x0\]
+**	ret
+*/
+void
+foo4 (unsigned long long *p)
+{
+  *p = __builtin_aarch64_chkfeat (*p);
+}
+
+/*
+**foo5:
+**	mov	x16, 1
+**	hint	40 // chkfeat x16
+**	cmp	x16, 0
+**(
+**	csel	w0, w1, w0, eq
+**|
+**	csel	w0, w0, w1, ne
+**)
+**	ret
+*/
+int
+foo5 (int x, int y)
+{
+  return __builtin_aarch64_chkfeat (1) ? x : y;
+}
diff --git a/gcc/testsuite/gcc.target/aarch64/chkfeat-2.c b/gcc/testsuite/gcc.target/aarch64/chkfeat-2.c
new file mode 100644
index 00000000000..682524e244f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/chkfeat-2.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler-times {hint\t40 // chkfeat x16} 2 } } */
+
+void bar (void);
+
+/* Extern call may change enabled HW features.  */
+unsigned long long
+foo (void)
+{
+  unsigned long long a = __builtin_aarch64_chkfeat (1);
+  bar ();
+  unsigned long long b = __builtin_aarch64_chkfeat (1);
+  return a + b;
+}

             reply	other threads:[~2024-04-10 10:48 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-10 10:48 Szabolcs Nagy [this message]
  -- strict thread matches above, loose matches on Subject: below --
2024-02-14 15:26 Szabolcs Nagy

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