[v2,05/21] aarch64: Add __builtin_aarch64_chkfeat tests

Message ID	20241031132323.948159-6-yury.khrustalev@arm.com
State	New
Headers	show Return-Path: <gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org> DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 82017385734A From: Yury Khrustalev <yury.khrustalev@arm.com> To: gcc-patches@gcc.gnu.org Cc: nsz@gcc.gnu.org, richard.earnshaw@arm.com, matthieu.longo@arm.com, richard.ball@arm.com, richard.sandiford@arm.com Subject: [PATCH v2 05/21] aarch64: Add __builtin_aarch64_chkfeat tests Date: Thu, 31 Oct 2024 13:23:07 +0000 Message-Id: <20241031132323.948159-6-yury.khrustalev@arm.com> In-Reply-To: <20241031132323.948159-1-yury.khrustalev@arm.com> References: <20241031132323.948159-1-yury.khrustalev@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: list Errors-To: gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org
Series	aarch64: Add support for Guarded Control Stack extension \| expand [v2,00/21] aarch64: Add support for Guarded Control Stack extension [v2,01/21] aarch64: Add -mbranch-protection=gcs option [v2,02/21] aarch64: Add branch-protection target pragma tests [v2,03/21] aarch64: Add support for chkfeat insn [v2,04/21] aarch64: Add __builtin_aarch64_chkfeat [v2,05/21] aarch64: Add __builtin_aarch64_chkfeat tests [v2,06/21] aarch64: Add GCS instructions [v2,07/21] aarch64: Add GCS builtins [v2,08/21] aarch64: Add __builtin_aarch64_gcs* tests [v2,09/21] aarch64: Add GCS support for nonlocal stack save [v2,10/21] aarch64: Add non-local goto and jump tests for GCS [v2,11/21] aarch64: Add ACLE feature macros for GCS [v2,12/21] aarch64: Add test for GCS ACLE defs [v2,13/21] aarch64: Add target pragma tests for gcs [v2,14/21] aarch64: Add GCS support to the unwinder [v2,15/21] aarch64: Emit GNU property NOTE for GCS [v2,16/21] aarch64: libgcc: add GCS marking to asm [v2,17/21] aarch64: libatomic: add GCS marking to asm [v2,18/21] aarch64: Introduce indirect_return attribute [v2,19/21] aarch64: Add tests and docs for indirect_return attribute [v2,20/21] aarch64: Fix tests incompatible with GCS [v2,21/21] aarch64: Fix nonlocal goto tests incompatible with GCS

Message ID

20241031132323.948159-6-yury.khrustalev@arm.com

State

New

Headers

DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 82017385734A
From: Yury Khrustalev <yury.khrustalev@arm.com>
To: gcc-patches@gcc.gnu.org
Cc: nsz@gcc.gnu.org, richard.earnshaw@arm.com, matthieu.longo@arm.com,
 richard.ball@arm.com, richard.sandiford@arm.com
Subject: [PATCH v2 05/21] aarch64: Add __builtin_aarch64_chkfeat tests
Date: Thu, 31 Oct 2024 13:23:07 +0000
Message-Id: <20241031132323.948159-6-yury.khrustalev@arm.com>
In-Reply-To: <20241031132323.948159-1-yury.khrustalev@arm.com>
References: <20241031132323.948159-1-yury.khrustalev@arm.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: list
Errors-To: gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org

Series

aarch64: Add support for Guarded Control Stack extension | expand

Commit Message

Yury Khrustalev Oct. 31, 2024, 1:23 p.m. UTC

From: Szabolcs Nagy <szabolcs.nagy@arm.com>

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/chkfeat-1.c: New test.
	* gcc.target/aarch64/chkfeat-2.c: New test.
	Co-authored-by: Richard Sandiford <richard.sandiford@arm.com>
---
 gcc/testsuite/gcc.target/aarch64/chkfeat-1.c | 75 ++++++++++++++++++++
 gcc/testsuite/gcc.target/aarch64/chkfeat-2.c | 30 ++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/aarch64/chkfeat-1.c
 create mode 100644 gcc/testsuite/gcc.target/aarch64/chkfeat-2.c

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..f98d7096ffd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/chkfeat-2.c
@@ -0,0 +1,30 @@ 
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
+
+void bar (void);
+
+/* Extern call may change enabled HW features.  */
+
+/*
+** foo:
+**	...
+**	mov	x16, 1
+**	...
+**	hint	40 // chkfeat x16
+**	...
+**	bl	bar
+**	...
+**	mov	x16, 1
+**	...
+**	hint	40 // chkfeat x16
+**	...
+*/
+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;
+}

[v2,05/21] aarch64: Add __builtin_aarch64_chkfeat tests

Commit Message

Patch