Revert "Add LLVMContext::emitWarning methods and use them. <rdar://problem/12867368>"
This reverts r171041. This was a nice idea that didn't work out well.
Clang warnings need to be associated with warning groups so that they can
be selectively disabled, promoted to errors, etc. This simplistic patch didn't
allow for that. Enhancing it to provide some way for the backend to specify
a front-end warning type seems like overkill for the few uses of this, at
least for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174748 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/IntrinsicLowering.cpp b/lib/CodeGen/IntrinsicLowering.cpp
index 16e7968..07f0ccf 100644
--- a/lib/CodeGen/IntrinsicLowering.cpp
+++ b/lib/CodeGen/IntrinsicLowering.cpp
@@ -413,30 +413,22 @@
}
case Intrinsic::stacksave:
+ case Intrinsic::stackrestore: {
if (!Warned)
- Context.emitWarning("this target does not support the "
- "llvm.stacksave intrinsic");
+ errs() << "WARNING: this target does not support the llvm.stack"
+ << (Callee->getIntrinsicID() == Intrinsic::stacksave ?
+ "save" : "restore") << " intrinsic.\n";
Warned = true;
- CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
+ if (Callee->getIntrinsicID() == Intrinsic::stacksave)
+ CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
break;
-
- case Intrinsic::stackrestore:
- if (!Warned)
- Context.emitWarning("this target does not support the "
- "llvm.stackrestore intrinsic");
- Warned = true;
- break;
+ }
case Intrinsic::returnaddress:
- Context.emitWarning("this target does not support the "
- "llvm.returnaddress intrinsic");
- CI->replaceAllUsesWith(ConstantPointerNull::get(
- cast<PointerType>(CI->getType())));
- break;
-
case Intrinsic::frameaddress:
- Context.emitWarning("this target does not support the "
- "llvm.frameaddress intrinsic");
+ errs() << "WARNING: this target does not support the llvm."
+ << (Callee->getIntrinsicID() == Intrinsic::returnaddress ?
+ "return" : "frame") << "address intrinsic.\n";
CI->replaceAllUsesWith(ConstantPointerNull::get(
cast<PointerType>(CI->getType())));
break;
@@ -446,12 +438,12 @@
case Intrinsic::pcmarker:
break; // Simply strip out pcmarker on unsupported architectures
- case Intrinsic::readcyclecounter:
- Context.emitWarning("this target does not support the "
- "llvm.readcyclecounter intrinsic; "
- "it is being lowered to a constant 0");
+ case Intrinsic::readcyclecounter: {
+ errs() << "WARNING: this target does not support the llvm.readcyclecoun"
+ << "ter intrinsic. It is being lowered to a constant 0\n";
CI->replaceAllUsesWith(ConstantInt::get(Type::getInt64Ty(Context), 0));
break;
+ }
case Intrinsic::dbg_declare:
break; // Simply strip out debugging intrinsics