Merge pull request #33955 from vedantk/eng/PR-68759819

Author: swift-ci

lib/SILGen/SILGenFunction.cpp

@@ -506,11 +506,11 @@ void SILGenFunction::emitFunction(FuncDecl *fd) {
   MagicFunctionName = SILGenModule::getMagicFunctionName(fd);
 
   auto captureInfo = SGM.M.Types.getLoweredLocalCaptures(SILDeclRef(fd));
+  emitProfilerIncrement(fd->getTypecheckedBody());
   emitProlog(captureInfo, fd->getParameters(), fd->getImplicitSelfDecl(), fd,
              fd->getResultInterfaceType(), fd->hasThrows(), fd->getThrowsLoc());
   prepareEpilog(true, fd->hasThrows(), CleanupLocation(fd));
 
-  emitProfilerIncrement(fd->getTypecheckedBody());
   emitStmt(fd->getTypecheckedBody());
 
   emitEpilog(fd);

test/Profiler/coverage_non_constructible_enum.swift

@@ -0,0 +1,14 @@
+// RUN: %target-swift-frontend -Xllvm -sil-full-demangle -profile-generate -profile-coverage-mapping -emit-sil -module-name coverage_non_constructible_enum %s | %FileCheck %s
+
+// Reduced from Carthage (https://github.com/Carthage/Carthage).
+enum NoError: Error, Equatable {
+// CHECK-LABEL: static coverage_non_constructible_enum.NoError.== infix
+// CHECK: builtin "int_instrprof_increment"
+// CHECK: unreachable
+
+// CHECK-LABEL: sil_coverage_map {{.*}} static coverage_non_constructible_enum.NoError.== infix
+// CHECK-NEXT: [[@LINE+1]]:54 -> [[@LINE+3]]:4 : 0
+  static func ==(lhs: NoError, rhs: NoError) -> Bool {
+    return true
+  }
+}