diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
commit | 0b57cec536236d46e3dba9bd041533462f33dbb7 (patch) | |
tree | 56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/lib/Target/AMDGPU/AMDGPUFrameLowering.cpp | |
parent | 718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff) |
Notes
Diffstat (limited to 'contrib/llvm/lib/Target/AMDGPU/AMDGPUFrameLowering.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/AMDGPU/AMDGPUFrameLowering.cpp | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/contrib/llvm/lib/Target/AMDGPU/AMDGPUFrameLowering.cpp b/contrib/llvm/lib/Target/AMDGPU/AMDGPUFrameLowering.cpp deleted file mode 100644 index e80797736363..000000000000 --- a/contrib/llvm/lib/Target/AMDGPU/AMDGPUFrameLowering.cpp +++ /dev/null @@ -1,65 +0,0 @@ -//===----------------------- AMDGPUFrameLowering.cpp ----------------------===// -// -// 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 -// -//==-----------------------------------------------------------------------===// -// -// Interface to describe a layout of a stack frame on a AMDGPU target machine. -// -//===----------------------------------------------------------------------===// - -#include "AMDGPUFrameLowering.h" - -using namespace llvm; -AMDGPUFrameLowering::AMDGPUFrameLowering(StackDirection D, unsigned StackAl, - int LAO, unsigned TransAl) - : TargetFrameLowering(D, StackAl, LAO, TransAl) { } - -AMDGPUFrameLowering::~AMDGPUFrameLowering() = default; - -unsigned AMDGPUFrameLowering::getStackWidth(const MachineFunction &MF) const { - // XXX: Hardcoding to 1 for now. - // - // I think the StackWidth should stored as metadata associated with the - // MachineFunction. This metadata can either be added by a frontend, or - // calculated by a R600 specific LLVM IR pass. - // - // The StackWidth determines how stack objects are laid out in memory. - // For a vector stack variable, like: int4 stack[2], the data will be stored - // in the following ways depending on the StackWidth. - // - // StackWidth = 1: - // - // T0.X = stack[0].x - // T1.X = stack[0].y - // T2.X = stack[0].z - // T3.X = stack[0].w - // T4.X = stack[1].x - // T5.X = stack[1].y - // T6.X = stack[1].z - // T7.X = stack[1].w - // - // StackWidth = 2: - // - // T0.X = stack[0].x - // T0.Y = stack[0].y - // T1.X = stack[0].z - // T1.Y = stack[0].w - // T2.X = stack[1].x - // T2.Y = stack[1].y - // T3.X = stack[1].z - // T3.Y = stack[1].w - // - // StackWidth = 4: - // T0.X = stack[0].x - // T0.Y = stack[0].y - // T0.Z = stack[0].z - // T0.W = stack[0].w - // T1.X = stack[1].x - // T1.Y = stack[1].y - // T1.Z = stack[1].z - // T1.W = stack[1].w - return 1; -} |