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raw_ostream::indent is used for PadToColumn which often prints more

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than 16 spaces. Make the Spaces array wide enough to handle common cases.

llvm-svn: 79890
This commit is contained in:
Dan Gohman 2009-08-24 04:13:01 +00:00
parent 9be7cb663d
commit 0c0f711f50
1 changed files with 6 additions and 3 deletions
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9
lib/Support/raw_ostream.cpp
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@ -19,6 +19,7 @@
#include "llvm/Config/config.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include <sys/stat.h>
#include <sys/types.h>
@ -298,14 +299,16 @@ raw_ostream &raw_ostream::operator<<(const format_object_base &Fmt) {
/// indent - Insert 'NumSpaces' spaces.
raw_ostream &raw_ostream::indent(unsigned NumSpaces) {
const char *Spaces = " ";
static const char Spaces[] = " "
" "
" ";
// Usually the indentation is small, handle it with a fastpath.
if (NumSpaces <= 16)
if (NumSpaces <= array_lengthof(Spaces))
return write(Spaces, NumSpaces);
while (NumSpaces) {
unsigned NumToWrite = std::min(NumSpaces, 16U);
unsigned NumToWrite = std::min(NumSpaces, (unsigned)array_lengthof(Spaces));
write(Spaces, NumToWrite);
NumSpaces -= NumToWrite;
}