[llvm-size] Berkeley formatting: use tabs instead of spaces as field delimeters.

This matches GNU behavior for size and allows use of cut to parse the output of llvm-size.

llvm-svn: 342791

Author: rupprecht

llvm/test/tools/llvm-size/X86/format-berkeley-tabs.s

@@ -0,0 +1,15 @@
+// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
+// RUN: llvm-size -B -t %t.o | FileCheck %s --strict-whitespace
+
+        .text
+        .zero 4
+        .data
+        .long foo
+        .bss
+        .zero 4
+
+// Note: this test enables --strict-whitespace to check for literal tabs
+// between each field.
+// CHECK:      text	{{ *}}data	{{ *}}bss	{{ *}}dec	{{ *}}hex	{{ *}}filename
+// CHECK-NEXT: 4	{{ *}}4	{{ *}}4	{{ *}}12	{{ *}}c	{{ *}}{{[ -\(\)_A-Za-z0-9.\\/:]+}}
+// CHECK-NEXT: 4	{{ *}}4	{{ *}}4	{{ *}}12	{{ *}}c	{{ *}}(TOTALS)

llvm/tools/llvm-size/llvm-size.cpp

@@ -479,19 +479,25 @@ static void printObjectSectionSizes(ObjectFile *Obj) {
     }
 
     if (!BerkeleyHeaderPrinted) {
-      outs() << "   text    data     bss     "
-             << (Radix == octal ? "oct" : "dec") << "     hex filename\n";
+      outs() << "   text\t"
+                "   data\t"
+                "    bss\t"
+                "    "
+             << (Radix == octal ? "oct" : "dec")
+             << "\t"
+                "    hex\t"
+                "filename\n";
       BerkeleyHeaderPrinted = true;
     }
 
     // Print result.
-    fmt << "%#7" << radix_fmt << " "
-        << "%#7" << radix_fmt << " "
-        << "%#7" << radix_fmt << " ";
+    fmt << "%#7" << radix_fmt << "\t"
+        << "%#7" << radix_fmt << "\t"
+        << "%#7" << radix_fmt << "\t";
     outs() << format(fmt.str().c_str(), total_text, total_data, total_bss);
     fmtbuf.clear();
-    fmt << "%7" << (Radix == octal ? PRIo64 : PRIu64) << " "
-        << "%7" PRIx64 " ";
+    fmt << "%7" << (Radix == octal ? PRIo64 : PRIu64) << "\t"
+        << "%7" PRIx64 "\t";
     outs() << format(fmt.str().c_str(), total, total);
   }
 }
@@ -839,14 +845,14 @@ static void printBerkelyTotals() {
   std::string fmtbuf;
   raw_string_ostream fmt(fmtbuf);
   const char *radix_fmt = getRadixFmt();
-  fmt << "%#7" << radix_fmt << " "
-      << "%#7" << radix_fmt << " "
-      << "%#7" << radix_fmt << " ";
+  fmt << "%#7" << radix_fmt << "\t"
+      << "%#7" << radix_fmt << "\t"
+      << "%#7" << radix_fmt << "\t";
   outs() << format(fmt.str().c_str(), TotalObjectText, TotalObjectData,
                    TotalObjectBss);
   fmtbuf.clear();
-  fmt << "%7" << (Radix == octal ? PRIo64 : PRIu64) << " "
-      << "%7" PRIx64 " ";
+  fmt << "%7" << (Radix == octal ? PRIo64 : PRIu64) << "\t"
+      << "%7" PRIx64 "\t";
   outs() << format(fmt.str().c_str(), TotalObjectTotal, TotalObjectTotal)
          << "(TOTALS)\n";
 }