[clang] [llvm] [AMDGPU] Emit a waitcnt instruction after each memory instruction (PR #79236)

[Jun Wang via cfe-commits]

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+; RUN: llc -mtriple=amdgcn -mcpu=gfx900 -mattr=+precise-memory < %s | FileCheck %s -check-prefixes=GFX9
+; RUN: llc -mtriple=amdgcn -mcpu=gfx90a -mattr=+precise-memory < %s | FileCheck %s -check-prefixes=GFX90A
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -mattr=+precise-memory < %s | FileCheck %s -check-prefixes=GFX10
+; RUN: llc -mtriple=amdgcn-- -mcpu=gfx900 -mattr=-flat-for-global,+enable-flat-scratch,+precise-memory -amdgpu-use-divergent-register-indexing < %s | FileCheck --check-prefixes=GFX9-FLATSCR %s
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jwanggit86 wrote:

Done.

https://github.com/llvm/llvm-project/pull/79236