[llvm] [AMDGPU] Use directive for kernarg preload header padding (PR #86004)

[Matt Arsenault via llvm-commits]

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@@ -283,6 +283,16 @@ bool AMDGPUTargetAsmStreamer::EmitHSAMetadata(
   return true;
 }
 
+bool AMDGPUTargetAsmStreamer::EmitKernargPreloadHeader(
+    const MCSubtargetInfo &STI, bool TrapEnabled) {
+  const char *TrapInstr = TrapEnabled ? "\ts_trap 2" : "\ts_endpgm";
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arsenm wrote:

StringLiteral? 

https://github.com/llvm/llvm-project/pull/86004