3f40ad7ba8
On Windows there is no platform support for ifunc but we could lower them to global function pointers. This also enables FMV for Windows with Clang and Compiler-rt. Depends on #111961
79 lines
3.3 KiB
C
79 lines
3.3 KiB
C
// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -O2 -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=memory -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple arm64-apple-macosx -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-apple-macosx -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple arm64-apple-macosx -O2 -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-apple-macosx -O2 -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple arm64-apple-macosx -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple x86_64-apple-macosx -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple arm64-apple-macosx -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple x86_64-apple-macosx -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple avr-unknown-unknown -emit-llvm -o - %s | FileCheck %s --check-prefix=AVR
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// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -O2 -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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/// The ifunc is emitted before its resolver.
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int foo(int) __attribute__ ((ifunc("foo_ifunc")));
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static int f1(int i) {
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return i + 1;
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}
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static int f2(int i) {
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return i + 2;
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}
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typedef int (*foo_t)(int);
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int global;
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static foo_t foo_ifunc(void) {
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return global ? f1 : f2;
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}
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int bar(void) {
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return foo(1);
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}
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extern void goo(void);
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void bar2(void) {
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goo();
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}
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extern void goo(void) __attribute__ ((ifunc("goo_ifunc")));
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void* goo_ifunc(void) {
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return 0;
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}
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/// The ifunc is emitted after its resolver.
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void *hoo_ifunc(void) { return 0; }
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extern void hoo(int) __attribute__ ((ifunc("hoo_ifunc")));
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// CHECK: @foo = ifunc i32 (i32), ptr @foo_ifunc
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// CHECK: @goo = ifunc void (), ptr @goo_ifunc
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// CHECK: @hoo = ifunc void (i32), ptr @hoo_ifunc
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// AVR: @foo = ifunc i16 (i16), ptr addrspace(1) @foo_ifunc
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// AVR: @goo = ifunc void (), ptr addrspace(1) @goo_ifunc
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// AVR: @hoo = ifunc void (i16), ptr addrspace(1) @hoo_ifunc
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// CHECK: call i32 @foo(i32
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// CHECK: call void @goo()
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// SAN: define {{(dso_local )?}}noalias {{(noundef )?}}ptr @goo_ifunc() #[[#GOO_IFUNC:]] {
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// SAN: define {{(dso_local )?}}noalias {{(noundef )?}}ptr @hoo_ifunc() #[[#GOO_IFUNC]] {
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// SAN: define internal {{(noundef )?}}nonnull ptr @foo_ifunc() #[[#FOO_IFUNC:]] {
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// SAN-DAG: attributes #[[#GOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}}
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// SAN-DAG: attributes #[[#FOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}}
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