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Devang Patel
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Add little test harness to measure and compare quality of linenumber information preserved by clang. It produces .lineinfo file, for example
.|int main() { | int Array[100][200], i, j; +| double sum = 0.0; | .| for (i=0; i < 100; i+=2) .| for (j=0; j < 200; j++) .| Array[i][j] = 0; -| test_indvars(Array[0], Array); | x| for (i=0; i < 100; i+=2) x| for (j=0; j < 200; j++) .| sum += Array[i][j]; | .| printf("Checksum = %.0lf\n", sum); | -| return 0; .|} Here, . in first column indicates both clang and base compiler preserves line number information for this line. + in first column indicates only clang preserves line number information for this line. - in first column indicates neigther clang nor base compiler preserves line number information for this line. x in first column indicates clang does not preserve line number information for this line. CC is base compiler and LCC is clang. OPTFLAGS controls the optimization level. llvm-svn: 133276
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‎FindMissingLineNo.py

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#!/usr/bin/python
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import os
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import sys
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DBG_OUTPUT_FILE="Output/" + sys.argv[1] + ".dbg.ml"
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OPT_DBG_OUTPUT_FILE="Output/" + sys.argv[1] + ".dbg.opt.ml"
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NATIVE_DBG_OUTPUT_FILE="Output/" + sys.argv[1] + ".native.dbg.ml"
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NATIVE_OPT_DBG_OUTPUT_FILE="Output/" + sys.argv[1] + ".native.dbg.opt.ml"
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XFAIL_FILE=sys.argv[2] + "/lineinfo.xfail"
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REPORT_FILE="Output/" + sys.argv[1] + ".dbg.missing_lines.report.txt"
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def read_inputfile(filename, dict):
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f = open(filename, "r")
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lines = f.readlines()
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for l in range(len(lines)):
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columns = lines[l].split()
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s = dict.get(columns[0])
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if s is None:
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s = set()
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s.add(columns[1])
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dict[columns[0]] = s
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f.close()
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return
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dbg_lines = {}
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read_inputfile(DBG_OUTPUT_FILE, dbg_lines)
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dbg_opt_lines = {}
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read_inputfile(OPT_DBG_OUTPUT_FILE, dbg_opt_lines)
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native_dbg_lines = {}
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read_inputfile(NATIVE_DBG_OUTPUT_FILE, native_dbg_lines)
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native_dbg_opt_lines = {}
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read_inputfile(NATIVE_OPT_DBG_OUTPUT_FILE, native_dbg_opt_lines)
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xfailed_lines = {}
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read_inputfile(XFAIL_FILE, xfailed_lines)
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dbg_line_items = dbg_lines.items()
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for f in range(len(dbg_line_items)):
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fname = dbg_line_items[f][0]
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fset = dbg_line_items[f][1]
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optset = dbg_opt_lines.get(fname)
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nativeoptset = native_dbg_opt_lines.get(fname)
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xfailedset = xfailed_lines.get(os.path.basename(fname))
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if optset is not None:
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src = open(fname, "r")
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srclines = src.readlines()
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src_output = open("Output/" + sys.argv[1] + ".lineinfo", "w")
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for l in range(len(srclines)):
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l1 = l + 1
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l1s = str(l1)
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if l1s in fset:
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if l1s in optset:
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if nativeoptset is not None and l1s in nativeoptset:
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src_output.write(".|")
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else:
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src_output.write("+|")
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else:
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if nativeoptset is not None and l1s in nativeoptset:
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if xfailedset is not None and l1s in xfailedset:
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src_output.write(" |")
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else:
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src_output.write("x|")
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else:
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src_output.write("-|")
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else:
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src_output.write(" |")
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src_output.write(srclines[l])
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src.close()
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src_output.close()

‎PrintLineNo.sh

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#!/bin/sh
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dwarfdump Output/$1.dbg.dSYM/ -e --debug-line | grep "^0x" | awk '{if ($3) prev=$3; print basename prev," ",$2}' |sort |uniq > Output/$1.dbg.ml;
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dwarfdump Output/$1.dbg.opt.dSYM/ -e --debug-line | grep "^0x" | awk '{if ($3) prev=$3; print basename prev," ",$2}' |sort |uniq > Output/$1.dbg.opt.ml;
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dwarfdump Output/$1.native.dbg.dSYM/ -e --debug-line | grep "^0x" | awk '{if ($3) prev=$3; print basename prev," ",$2}' |sort |uniq > Output/$1.native.dbg.ml;
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dwarfdump Output/$1.native.dbg.opt.dSYM/ -e --debug-line | grep "^0x" | awk '{if ($3) prev=$3; print basename prev," ",$2}' |sort |uniq > Output/$1.native.dbg.opt.ml;

‎TEST.lineinfo.Makefile

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##===- TEST.lineinfo.Makefile -----------------------------*- Makefile -*--===##
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#
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# This test is used to measure quality of debugging information.
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#
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##===----------------------------------------------------------------------===##
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CURDIR := $(shell cd .; pwd)
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PROGDIR := $(PROJ_SRC_ROOT)
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RELDIR := $(subst $(PROGDIR),,$(CURDIR))
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COLLECTOR := $(PROJ_SRC_ROOT)/CollectDebugInfoUsingLLDB.py
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REPORTS_TO_GEN := dbg
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REPORTS_SUFFIX := $(addsuffix .report.txt, $(REPORTS_TO_GEN))
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Output/%.bp: %.c Output/.dir
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$(LCC) $(CPPFLAGS) $(CFLAGS) -g -c -emit-llvm $< -o $@.bc
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$(LOPT) -print-breakpoints-for-testing $@.bc -o $@
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Output/%.bp: %.cpp Output/.dir
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$(LCXX) $(CPPFLAGS) $(CFLAGS) -g -c -emit-llvm $< -o $@.bc
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$(LOPT) -print-breakpoints-for-testing $@.bc -o $@
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Output/%.bp: %.m Output/.dir
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$(LCC) $(CPPFLAGS) $(CFLAGS) -g -c -emit-llvm $< -o $@.bc
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$(LOPT) -print-breakpoints-for-testing $@.bc -o $@
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Output/%.bp: %.mm Output/.dir
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$(LCXX) $(CPPFLAGS) $(CFLAGS) -g -c -emit-llvm $< -o $@.bc
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$(LOPT) -print-breakpoints-for-testing $@.bc -o $@
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$(PROGRAMS_TO_TEST:%=test.$(TEST).%): \
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test.$(TEST).%: Output/%.bp Output/%.dbg Output/%.dbg.opt Output/%.native.dbg Output/%.native.dbg.opt
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@-is_skip=0; \
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if test "$*" == "reversefile"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "spellcheck"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "sumcol"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "wc"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "wordfreq"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "exptree"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "ray"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "oscar"; then \
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is_skip=1; \
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fi; \
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if test "$*" == "spirit"; then \
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is_skip=1; \
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fi; \
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if test $$is_skip == 0; then \
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$(PROJ_SRC_ROOT)/PrintLineNo.sh $*; \
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$(PROJ_SRC_ROOT)/FindMissingLineNo.py $* $(PROJ_SRC_ROOT);\
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fi
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‎lineinfo.xfail

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sse.shift.c 9

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