[llvm] IR/Verifier: Do not allow kernel to kernel calls. (PR #144445)
Shilei Tian via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 18 21:27:32 PDT 2025
================
@@ -0,0 +1,9 @@
+; RUN: not llvm-as %s -disable-output 2>&1 | FileCheck %s
+
+define amdgpu_kernel void @kernel(ptr addrspace(1) %out, i32 %n) {
+entry:
+; CHECK: calling convention does not permit calls
+; CHECK-NEXT: call void @kernel(ptr addrspace(1) %out, i32 %n)
+ call void @kernel(ptr addrspace(1) %out, i32 %n)
----------------
shiltian wrote:
I don't think it'd be a good idea. It will break a lot of assumptions and conventions we have for kernel function.
https://github.com/llvm/llvm-project/pull/144445
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