From 7aaad71722aeb26f14c8523ee55df91e38837a02 Mon Sep 17 00:00:00 2001 From: David Greene Date: Tue, 28 Jul 2009 23:26:34 +0000 Subject: Improve performance of PadToColumn by eliminating flushes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77397 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Support/FormattedStream.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/llvm/Support/FormattedStream.h b/include/llvm/Support/FormattedStream.h index 4b13ff2..a8300b4 100644 --- a/include/llvm/Support/FormattedStream.h +++ b/include/llvm/Support/FormattedStream.h @@ -49,13 +49,13 @@ namespace llvm /// bool DeleteStream; - /// Column - The current output column of the stream. The column - /// scheme is zero-based. + /// ColumnFlushed - The current output column of the data that's + /// been flushed. The column scheme is zero-based. /// - unsigned Column; + unsigned ColumnFlushed; virtual void write_impl(const char *Ptr, size_t Size) { - ComputeColumn(Ptr, Size); + ComputeColumn(ColumnFlushed); TheStream->write(Ptr, Size); } @@ -67,10 +67,10 @@ namespace llvm return TheStream->tell() - TheStream->GetNumBytesInBuffer(); } - /// ComputeColumn - Examine the current output and figure out - /// which column we end up in after output. + /// ComputeColumn - Examine the current buffer and figure out + /// which column we're in. /// - void ComputeColumn(const char *Ptr, size_t Size); + void ComputeColumn(unsigned &Column); public: /// formatted_raw_ostream - Open the specified file for @@ -84,11 +84,11 @@ namespace llvm /// underneath it. /// formatted_raw_ostream(raw_ostream &Stream, bool Delete = false) - : raw_ostream(), TheStream(0), DeleteStream(false), Column(0) { + : raw_ostream(), TheStream(0), DeleteStream(false), ColumnFlushed(0) { setStream(Stream, Delete); } explicit formatted_raw_ostream() - : raw_ostream(), TheStream(0), DeleteStream(false), Column(0) {} + : raw_ostream(), TheStream(0), DeleteStream(false), ColumnFlushed(0) {} ~formatted_raw_ostream() { if (DeleteStream) -- cgit v1.1