| // RUN: %clang_cc1 -triple avr -target-cpu atmega328 -emit-llvm < %s | FileCheck %s |
| |
| // This test case verifies https://github.com/llvm/llvm-project/issues/176830, |
| // and the test code is gained from |
| // https://github.com/avrdudes/avr-libc/blob/main/include/string.h |
| |
| unsigned int strlen(const char *__s) { |
| if (__builtin_constant_p (__builtin_strlen (__s))) { |
| return __builtin_strlen (__s); |
| } else { |
| register const char *__r24 __asm("24") = __s; |
| register unsigned int __res __asm("24"); |
| // CHECK: call addrspace(0) i16 asm "call ${2:x}", "={r24},{r24},i,~{r30},~{r31},~{memory}"(ptr %1, ptr addrspace(1) @strlen) |
| __asm ("%~call %x2" : "=r" (__res) : "r" (__r24), "i" (strlen) : "30", "31", "memory"); |
| return __res; |
| } |
| } |
