================ @@ -0,0 +1,157 @@ +//===- AMDGPUExpandFeaturePredicates.cpp - Feature Predicate Expander Pass ===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// This file implements a pass that deals with expanding AMDGCN generic feature +// predicates into target specific quantities / sequences. In this context, a +// generic feature predicate is an implementation detail global variable that +// is inserted by the FE as a consequence of using either the __builtin_cpu_is +// or the __builtin_amdgcn_is_invocable special builtins on an abstract target +// (AMDGCNSPIRV). These placeholder globals are used to guide target specific +// lowering, once the concrete target is known, by way of constant folding their +// value all the way into a terminator (i.e. a controlled block) or into a no +// live use scenario. The pass makes a best effort attempt to look through +// calls, i.e. a constant evaluatable passthrough of a predicate value will ---------------- AlexVlx wrote:
The comment is vestigial from a prior iteration of this, thank you for catching that, I have to correct it. https://github.com/llvm/llvm-project/pull/134016 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
