1bfa71743b
This is to inform the middle-end transform passes about the capabilities of the codegen backend. This should solve the issue where popcount loops not gets converted properly to `popc`, even if it's available (https://github.com/llvm/llvm-project/issues/171969).
23 lines
750 B
C++
23 lines
750 B
C++
//===-- SparcTargetTransformInfo.cpp - SPARC specific TTI -----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "SparcTargetTransformInfo.h"
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#include "llvm/Support/MathExtras.h"
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using namespace llvm;
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#define DEBUG_TYPE "sparctti"
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TargetTransformInfo::PopcntSupportKind
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SparcTTIImpl::getPopcntSupport(unsigned TyWidth) const {
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assert(isPowerOf2_32(TyWidth) && "Type width must be power of 2");
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if (ST->usePopc())
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return TTI::PSK_FastHardware;
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return TTI::PSK_Software;
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}
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