add unreachable to prevent no-return warnings

optimisan · optimisan · commit f69e5dfb0141 · 2025-03-11T06:40:15.000Z
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -2186,6 +2186,7 @@ AMDGPUCodeGenPassBuilder::getRAOptionsForPhase(RegAllocPhase Phase) const {
     return RA_OPTIONS(onlyAllocateVGPRs, "vgpr", true);
   }
 
+  llvm_unreachable("invalid phase value");
 #undef RA_OPTIONS
 }
 

Original file line number	Diff line number	Diff line change
`@@ -2186,6 +2186,7 @@ AMDGPUCodeGenPassBuilder::getRAOptionsForPhase(RegAllocPhase Phase) const {`
`2186`	`2186`	`return RA_OPTIONS(onlyAllocateVGPRs, "vgpr", true);`
`2187`	`2187`	`}`
`2188`	`2188`
	`2189`	`+ llvm_unreachable("invalid phase value");`
`2189`	`2190`	`#undef RA_OPTIONS`
`2190`	`2191`	`}`
`2191`	`2192`