[llvm-branch-commits] [libcxx] [lldb] [libcxxabi] [llvm] [clang] [lld] [compiler-rt] [libc] [flang] [mlir] [openmp] [clang-tools-extra] [clang] Support __attribute__((ifunc(...))) on Darwin platforms (PR #73687)
Jon Roelofs via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Fri Dec 8 13:13:38 PST 2023
https://github.com/jroelofs updated https://github.com/llvm/llvm-project/pull/73687
>From aeb39b92bbd7670fb8c6b9e76a456a92199691b3 Mon Sep 17 00:00:00 2001
From: Jon Roelofs <jonathan_roelofs at apple.com>
Date: Wed, 29 Nov 2023 12:23:46 -0800
Subject: [PATCH] adjust tests per review feedback
Created using spr 1.3.4
---
clang/test/CodeGen/attr-ifunc.c | 20 +++++++++++++++++++
clang/test/CodeGen/attr-ifunc.cpp | 4 ++++
.../CodeGenCXX/externc-ifunc-resolver.cpp | 2 ++
clang/test/SemaCXX/externc-ifunc-resolver.cpp | 4 ++++
4 files changed, 30 insertions(+)
diff --git a/clang/test/CodeGen/attr-ifunc.c b/clang/test/CodeGen/attr-ifunc.c
index 4f8fe13530fdb..2ad41edf20dfa 100644
--- a/clang/test/CodeGen/attr-ifunc.c
+++ b/clang/test/CodeGen/attr-ifunc.c
@@ -1,6 +1,7 @@
// RUN: %clang_cc1 -triple x86_64-windows -fsyntax-only -verify %s
// RUN: %clang_cc1 -triple x86_64-linux -fsyntax-only -verify -emit-llvm-only -DCHECK_ALIASES %s
// RUN: %clang_cc1 -triple x86_64-linux -fsyntax-only -verify -emit-llvm-only %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx -fsyntax-only -verify -emit-llvm-only %s
#if defined(_WIN32)
void foo(void) {}
@@ -36,6 +37,25 @@ void *f6_resolver(void) __attribute__((ifunc("f6_resolver_resolver")));
void f6(void) __attribute__((ifunc("f6_resolver")));
// expected-error at -1 {{ifunc must point to a defined function}}
+#elif defined(__APPLE__)
+
+// NOTE: aliases are not supported on Darwin, so the above tests are not relevant.
+
+#define STR2(X) #X
+#define STR(X) STR2(X)
+#define PREFIX STR(__USER_LABEL_PREFIX__)
+
+void f1a(void) __asm("f1");
+void f1a(void) {}
+// expected-note at -1 {{previous definition is here}}
+void f1(void) __attribute__((ifunc(PREFIX "f1_ifunc"))) __asm("f1");
+// expected-error at -1 {{definition with same mangled name '<U+0001>f1' as another definition}}
+void *f1_ifunc(void) { return 0; }
+
+void *f6_ifunc(int i);
+void __attribute__((ifunc(PREFIX "f6_ifunc"))) f6(void) {}
+// expected-error at -1 {{definition 'f6' cannot also be an ifunc}}
+
#else
void f1a(void) __asm("f1");
void f1a(void) {}
diff --git a/clang/test/CodeGen/attr-ifunc.cpp b/clang/test/CodeGen/attr-ifunc.cpp
index 5b5b2c14b4074..b6e342df46eb5 100644
--- a/clang/test/CodeGen/attr-ifunc.cpp
+++ b/clang/test/CodeGen/attr-ifunc.cpp
@@ -1,5 +1,9 @@
// RUN: %clang_cc1 -triple x86_64-linux -fsyntax-only -verify -emit-llvm-only %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx -fsyntax-only -verify -emit-llvm-only %s
+// RUN: %clang_cc1 -triple arm64-apple-macosx -fsyntax-only -verify -emit-llvm-only %s
// RUN: not %clang_cc1 -triple x86_64-linux -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -triple x86_64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -triple arm64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
void *f1_ifunc(void) { return nullptr; }
void f1(void) __attribute__((ifunc("f1_ifunc")));
diff --git a/clang/test/CodeGenCXX/externc-ifunc-resolver.cpp b/clang/test/CodeGenCXX/externc-ifunc-resolver.cpp
index 0518a8dcc831d..be4453ae7eb08 100644
--- a/clang/test/CodeGenCXX/externc-ifunc-resolver.cpp
+++ b/clang/test/CodeGenCXX/externc-ifunc-resolver.cpp
@@ -1,4 +1,6 @@
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple arm64-apple-macosx -emit-llvm -o - %s | FileCheck %s
extern "C" {
__attribute__((used)) static void *resolve_foo() { return 0; }
diff --git a/clang/test/SemaCXX/externc-ifunc-resolver.cpp b/clang/test/SemaCXX/externc-ifunc-resolver.cpp
index aa44525bde2ca..6c6c262c5f09d 100644
--- a/clang/test/SemaCXX/externc-ifunc-resolver.cpp
+++ b/clang/test/SemaCXX/externc-ifunc-resolver.cpp
@@ -1,5 +1,9 @@
// RUN: %clang_cc1 -emit-llvm-only -triple x86_64-linux-gnu -verify %s
+// RUN: %clang_cc1 -emit-llvm-only -triple x86_64-apple-macosx -verify %s
+// RUN: %clang_cc1 -emit-llvm-only -triple arm64-apple-macosx -verify %s
// RUN: not %clang_cc1 -triple x86_64-linux -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -triple x86_64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -triple arm64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
extern "C" {
__attribute__((used)) static void *resolve_foo() { return 0; }
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