[llvm] AMDGPU gfx12: Add _dvgpr$ symbols for dynamic VGPRs (PR #148251)

[Shilei Tian via llvm-commits]

================
@@ -0,0 +1,12 @@
+; Test generation of _dvgpr$ symbol for an amdgpu_cs_chain function with +dynamic-vgpr.
+
+; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=gfx1200 -asm-verbose=0 < %s | FileCheck -check-prefixes=DVGPR %s
----------------
shiltian wrote:

auto generate check lines pls

https://github.com/llvm/llvm-project/pull/148251