[libc] Fix inline assembly for nvptx quick_exit

Summary:
The `exit` function in NVPTX has no intrinsic, but the assembly requires
a semicolon in the ptx, otherwise it will fail.

diff --git a/libc/src/__support/OSUtil/gpu/quick_exit.cpp b/libc/src/__support/OSUtil/gpu/quick_exit.cpp
index 56f0427..3fab438 100644 (file)
--- a/libc/src/__support/OSUtil/gpu/quick_exit.cpp
+++ b/libc/src/__support/OSUtil/gpu/quick_exit.cpp
@@ -27,7 +27,7 @@ void quick_exit(int status) {
       [](rpc::Buffer *) { /* void */ });
 
 #if defined(LIBC_TARGET_ARCH_IS_NVPTX)
-  asm("exit" ::: "memory");
+  asm("exit;" ::: "memory");
 #elif defined(LIBC_TARGET_ARCH_IS_AMDGPU)
   // This will terminate the entire wavefront, may not be valid with divergent
   // work items.