From c7af1d19f30025a5d400aeeb651eef5ee83eb83d Mon Sep 17 00:00:00 2001
From: Joseph Huber <jhuber6@vols.utk.edu>
Date: Fri, 20 Jan 2023 17:34:26 -0600
Subject: [PATCH] [OpenMP] Remove unfinished and unused 'Analyzer' tool

Summary:
This patch removes a tool that was never finished and has no plans of
being picked up again. It does not need to live in LLVM source in an
unusable state.
---
 openmp/tools/analyzer/analyzer.py            | 54 --------------------
 openmp/tools/analyzer/llvm-openmp-analyzer   | 45 ----------------
 openmp/tools/analyzer/llvm-openmp-analyzer++ |  1 -
 3 files changed, 100 deletions(-)
 delete mode 100644 openmp/tools/analyzer/analyzer.py
 delete mode 100755 openmp/tools/analyzer/llvm-openmp-analyzer
 delete mode 120000 openmp/tools/analyzer/llvm-openmp-analyzer++

diff --git a/openmp/tools/analyzer/analyzer.py b/openmp/tools/analyzer/analyzer.py
deleted file mode 100644
index bcb9abcf88d7..000000000000
--- a/openmp/tools/analyzer/analyzer.py
+++ /dev/null
@@ -1,54 +0,0 @@
-#!/usr/bin/env python
-
-import subprocess
-import os.path
-import yaml
-import io
-import re
-
-def parseKernelUsages(usageStr, usageDict):
-    demangler = 'c++filt -p'
-
-    def getKernelMem(usages):
-        match = re.search(r"([0-9]+) bytes cmem\[0\]", usages)
-        return match.group(1) if match else None
-    def getSharedMem(usages):
-        match = re.search(r"([0-9]+) bytes smem", usages)
-        return match.group(1) if match else None
-    def getRegisters(usages):
-        match = re.search(r"[Uu]sed ([0-9]+) registers", usages)
-        return match.group(1) if match else None
-    def demangle(fn):
-        expr = re.compile("__omp_offloading_[a-zA-Z0-9]*_[a-zA-Z0-9]*_(_Z.*_)_l[0-9]*$")
-        match = expr.search(fn)
-        function = match.group(1) if match else fn
-        output = subprocess.run(demangler.split(' ') + [function], check=True, stdout=subprocess.PIPE)
-        return output.stdout.decode('utf-8').strip()
-    def getLine(fn):
-        expr = re.compile("__omp_offloading_[a-zA-Z0-9]*_[a-zA-Z0-9]*_.*_l([0-9]*)$")
-        match = expr.search(fn)
-        return match.group(1) if match else 0
-
-    expr = re.compile("Function properties for \'?([a-zA-Z0-9_]*)\'?\n(.*,.*)\n")
-    for (fn, usages) in expr.findall(usageStr):
-        info = usageDict[fn] if fn in usageDict else dict()
-        info["Name"] = demangle(fn)
-        info["DebugLoc"] = {"File" : "unknown", "Line": getLine(fn), "Column" : 0}
-        info["Usage"] = {"Registers" : getRegisters(usages), "Shared" : getSharedMem(usages), "Kernel" : getKernelMem(usages)}
-        usageDict[fn] = info
-
-def getKernelUsage(stderr, fname='usage.yaml'):
-    remarks = [line for line in stderr.split('\n') if re.search(r"^remark:", line)]
-    ptxas = '\n'.join([line.split(':')[1].strip() for line in stderr.split('\n') if re.search(r"^ptxas info *:", line)])
-    nvlink = '\n'.join([line.split(':')[1].strip() for line in stderr.split('\n') if re.search(r"^nvlink info *:", line)])
-
-    if os.path.exists(fname):
-        with io.open(fname, 'r', encoding = 'utf-8') as f:
-            usage = yaml.load(f, Loader=yaml.Loader)
-    else:
-        usage = dict()
-
-    parseKernelUsages(ptxas, usage)
-    parseKernelUsages(nvlink, usage)
-
-    return usage
diff --git a/openmp/tools/analyzer/llvm-openmp-analyzer b/openmp/tools/analyzer/llvm-openmp-analyzer
deleted file mode 100755
index 259809c2dddb..000000000000
--- a/openmp/tools/analyzer/llvm-openmp-analyzer
+++ /dev/null
@@ -1,45 +0,0 @@
-#!/usr/bin/env python
-
-"""
-A wrapper for Clang specialized for gathering information about OpenMP programs.
-Simple replace calls to clang or clang++ with llvm-openmp-analyzer to run the
-analysis passes.
-"""
-
-import argparse
-import subprocess
-import yaml # PyYaml to save and load analysis information
-import sys
-import io
-
-from analyzer import getKernelUsage
-
-desc = '''A wrapper around clang that runs OpenMP Analysis passes and gathers
-information about OpenMP programs.'''
-
-default_args = ["-fopenmp", "-Rpass=openmp-opt", "-Rpass-missed=openmp-opt", "-Rpass-analysis=openmp-opt"]
-
-def main():
-    compiler = ["clang++"] if sys.argv[0].endswith('++') else ["clang"]
-    parser = argparse.ArgumentParser(description=desc)
-    parser.add_argument('--usage-report-file',
-            metavar='filename',
-            default='usage.yaml',
-            help='Filename used for the OpenMP kernel usage reports in YAML format. "usage.yaml" by default.')
-    parser.add_argument('--no-usage-report', 
-            action='store_true',
-            default=False, 
-            help='Do not general a usage report for the OpenMP kernels.')
-    args, clang_args = parser.parse_known_args()
-
-    subprocess.run(compiler + default_args + clang_args, check=True)
-    output = subprocess.run(compiler + default_args + clang_args + ["-v"], stderr=subprocess.PIPE)
-    stderr = output.stderr.decode('utf-8')
-
-    if not args.no_usage_report:
-        usage = getKernelUsage(stderr, fname=args.usage_report_file)
-        with io.open(args.usage_report_file, 'w', encoding = 'utf-8') as f:
-            yaml.dump(usage, f)
-
-if __name__ == '__main__':
-    main()
diff --git a/openmp/tools/analyzer/llvm-openmp-analyzer++ b/openmp/tools/analyzer/llvm-openmp-analyzer++
deleted file mode 120000
index b45062ac8676..000000000000
--- a/openmp/tools/analyzer/llvm-openmp-analyzer++
+++ /dev/null
@@ -1 +0,0 @@
-llvm-openmp-analyzer
\ No newline at end of file