[clang] [llvm] [MC/DC][Coverage] Loosen the limit of NumConds from 6 (PR #82448)

[NAKAMURA Takumi via cfe-commits]

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@@ -1128,9 +1122,11 @@ void CodeGenPGO::emitMCDCParameters(CGBuilderTy &Builder) {
   // Emit intrinsic representing MCDC bitmap parameters at function entry.
   // This is used by the instrumentation pass, but it isn't actually lowered to
   // anything.
-  llvm::Value *Args[3] = {llvm::ConstantExpr::getBitCast(FuncNameVar, I8PtrTy),
-                          Builder.getInt64(FunctionHash),
-                          Builder.getInt32(RegionMCDCState->BitmapBytes)};
+  llvm::Value *Args[3] = {
+      llvm::ConstantExpr::getBitCast(FuncNameVar, I8PtrTy),
+      Builder.getInt64(FunctionHash),
+      Builder.getInt32(llvm::alignTo(RegionMCDCState->BitmapBits, CHAR_BIT) /
+                       CHAR_BIT)};
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chapuni wrote:

Modified 3rd arg of `mcdc.parameters` as bitcnt.

https://github.com/llvm/llvm-project/pull/82448