xref: /llvm-project/clang/test/CodeGen/patchable-function-entry.c (revision adc402bf3d0565ac2bc7efbdd05f0d846e818041)
1 // RUN: %clang_cc1 -triple aarch64 -emit-llvm %s -o - | FileCheck %s
2 // RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -fpatchable-function-entry=1 -o - | FileCheck --check-prefixes=CHECK,OPT %s
3 // RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -fms-hotpatch -o - | FileCheck --check-prefixes=HOTPATCH %s
4 
5 // CHECK: define{{.*}} void @f0() #0
f0(void)6 __attribute__((patchable_function_entry(0))) void f0(void) {}
7 
8 // CHECK: define{{.*}} void @f00() #0
f00(void)9 __attribute__((patchable_function_entry(0, 0))) void f00(void) {}
10 
11 // CHECK: define{{.*}} void @f2() #1
f2(void)12 __attribute__((patchable_function_entry(2))) void f2(void) {}
13 
14 // CHECK: define{{.*}} void @f20() #1
f20(void)15 __attribute__((patchable_function_entry(2, 0))) void f20(void) {}
16 
17 // CHECK: define{{.*}} void @f20decl() #1
18 __attribute__((patchable_function_entry(2, 0))) void f20decl(void);
f20decl(void)19 void f20decl(void) {}
20 
21 // CHECK: define{{.*}} void @f44() #2
f44(void)22 __attribute__((patchable_function_entry(4, 4))) void f44(void) {}
23 
24 // CHECK: define{{.*}} void @f52() #3
f52(void)25 __attribute__((patchable_function_entry(5, 2))) void f52(void) {}
26 
27 // OPT: define{{.*}} void @f() #4
f(void)28 void f(void) {}
29 
30 /// No need to emit "patchable-function-entry"="0"
31 // CHECK: attributes #0 = { {{.*}}
32 // CHECK-NOT: "patchable-function-entry"
33 
34 // CHECK: attributes #1 = { {{.*}} "patchable-function-entry"="2"
35 // CHECK: attributes #2 = { {{.*}} "patchable-function-entry"="0" "patchable-function-prefix"="4"
36 // CHECK: attributes #3 = { {{.*}} "patchable-function-entry"="3" "patchable-function-prefix"="2"
37 // OPT:   attributes #4 = { {{.*}} "patchable-function-entry"="1"
38 // HOTPATCH: attributes #0 = { {{.*}} "patchable-function"="prologue-short-redirect"
39 // HOTPATCH: attributes #1 = { {{.*}} "patchable-function"="prologue-short-redirect"
40 // HOTPATCH: attributes #2 = { {{.*}} "patchable-function"="prologue-short-redirect"
41 // HOTPATCH: attributes #3 = { {{.*}} "patchable-function"="prologue-short-redirect"
42