| Dmitry Polukhin | 85eda12 | 2016-04-11 07:48:59 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| 2 | // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -O2 -emit-llvm -o - %s | FileCheck %s |
| 3 | |
| 4 | int foo(int) __attribute__ ((ifunc("foo_ifunc"))); |
| 5 | |
| 6 | static int f1(int i) { |
| 7 | return i + 1; |
| 8 | } |
| 9 | |
| 10 | static int f2(int i) { |
| 11 | return i + 2; |
| 12 | } |
| 13 | |
| 14 | typedef int (*foo_t)(int); |
| 15 | |
| 16 | int global; |
| 17 | |
| 18 | static foo_t foo_ifunc() { |
| 19 | return global ? f1 : f2; |
| 20 | } |
| 21 | |
| 22 | int bar() { |
| 23 | return foo(1); |
| 24 | } |
| 25 | |
| 26 | extern void goo(void); |
| 27 | |
| 28 | void bar2(void) { |
| 29 | goo(); |
| 30 | } |
| 31 | |
| 32 | extern void goo(void) __attribute__ ((ifunc("goo_ifunc"))); |
| 33 | |
| 34 | void* goo_ifunc(void) { |
| 35 | return 0; |
| 36 | } |
| 37 | // CHECK: @foo = ifunc i32 (i32), bitcast (i32 (i32)* ()* @foo_ifunc to i32 (i32)*) |
| 38 | // CHECK: @goo = ifunc void (), bitcast (i8* ()* @goo_ifunc to void ()*) |
| 39 | |
| 40 | // CHECK: call i32 @foo(i32 |
| 41 | // CHECK: call void @goo() |