implement -ftabstop=width, patch by Christian Adåker
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93078 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 8817469..375c75c 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -222,6 +222,10 @@
Res.push_back("-verify");
if (Opts.ShowOptionNames)
Res.push_back("-fdiagnostics-show-option");
+ if (Opts.TabStop != 8) {
+ Res.push_back("-ftabstop");
+ Res.push_back(llvm::utostr(Opts.TabStop));
+ }
if (Opts.MessageLength) {
Res.push_back("-fmessage-length");
Res.push_back(llvm::utostr(Opts.MessageLength));
@@ -804,6 +808,7 @@
Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
+ Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 8, Diags);
Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
Opts.DumpBuildInformation = getLastArgValue(Args, OPT_dump_build_information);
Opts.Warnings = getAllArgValues(Args, OPT_W);
diff --git a/lib/Frontend/TextDiagnosticPrinter.cpp b/lib/Frontend/TextDiagnosticPrinter.cpp
index 61f8a70..c27d112 100644
--- a/lib/Frontend/TextDiagnosticPrinter.cpp
+++ b/lib/Frontend/TextDiagnosticPrinter.cpp
@@ -378,9 +378,10 @@
// Replace this tab with at least one space.
SourceLine[i] = ' ';
+ unsigned TabStop = DiagOpts->TabStop > 0 ? DiagOpts->TabStop : 8;
// Compute the number of spaces we need to insert.
- unsigned NumSpaces = ((i+8)&~7) - (i+1);
- assert(NumSpaces < 8 && "Invalid computation of space amt");
+ unsigned NumSpaces = ((i+TabStop)/TabStop * TabStop) - (i+1);
+ assert(NumSpaces < TabStop && "Invalid computation of space amt");
// Insert spaces into the SourceLine.
SourceLine.insert(i+1, NumSpaces, ' ');