[llvm] [AsmPrinter] Do not emit label instructions after the function body if the target is SPIR-V (PR #107013)

[Matt Arsenault via llvm-commits]

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@@ -1960,7 +1960,9 @@ void AsmPrinter::emitFunctionBody() {
   // are automatically sized.
   bool EmitFunctionSize = MAI->hasDotTypeDotSizeDirective() && !TT.isWasm();
 
-  if (EmitFunctionSize || needFuncLabels(*MF, *this)) {
+  // SPIR-V supports label instructions only inside a block, not after the
+  // function body.
+  if (!TT.isSPIRV() && (EmitFunctionSize || needFuncLabels(*MF, *this))) {
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arsenm wrote:

The target and object format may be intricately linked, but we still have a defined SPIRV ObjectFormatType. So you can just change the getArch() == spirv check for a getObjectFormat() == spirv check? 

https://github.com/llvm/llvm-project/pull/107013