[llvm] [AMDGPU] Handled G_UBSANTRAP GlobalIsel (PR #134492)

[Matt Arsenault via llvm-commits]

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@@ -2103,7 +2103,7 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo(const GCNSubtarget &ST_,
   getActionDefinitionsBuilder({G_MEMCPY, G_MEMCPY_INLINE, G_MEMMOVE, G_MEMSET})
       .lower();
 
-  getActionDefinitionsBuilder({G_TRAP, G_DEBUGTRAP}).custom();
+  getActionDefinitionsBuilder({G_TRAP, G_DEBUGTRAP, G_UBSANTRAP}).custom();
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arsenm wrote:

Not exactly. G_TRAP would still be custom, G_DEBUGTRAP and G_UBSANTRAP would lower. The default lowering would just replace those with regular G_TRAP 

https://github.com/llvm/llvm-project/pull/134492