[libcpu/arm/*/cpuport.c]fixed __rt_ffs bug on account of armclang LTO.

2026-05-23 12:17:20 +08:00 · 2020-06-18 09:18:48 +08:00
parent d7d6dbe774
commit d2eaa452d6
4 changed files with 8 additions and 8 deletions
@@ -388,13 +388,13 @@ int __rt_ffs(int value)
 {
    __asm volatile(
        "CMP     r0, #0x00            \n"
-        "BEQ     exit                 \n"
+        "BEQ     1f                   \n"

        "RBIT    r0, r0               \n"
        "CLZ     r0, r0               \n"
        "ADDS    r0, r0, #0x01        \n"

-        "exit:                        \n"
+        "1:                           \n"

        : "=r"(value)
        : "r"(value)