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SamplePGO - Do not use std::to_string in diagnostics.

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This fixes buildbots in systems that std::to_string is not present. It
also tidies the output of the diagnostic to render doubles a bit better
(thanks Ben Kramer for help with string streams and format).

llvm-svn: 254261
This commit is contained in:
Diego Novillo 2015-11-29 18:23:26 +00:00
parent 268b85343f
commit d74fdde81f
1 changed files with 17 additions and 12 deletions
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29
lib/Transforms/IPO/SampleProfile.cpp
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@ -44,6 +44,7 @@
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Utils/Cloning.h"
@ -629,12 +630,14 @@ bool SampleProfileLoader::emitInlineHints(Function &F) {
// it globally hot.
if (SamplesPercent >= SampleProfileGlobalHotThreshold) {
F.addFnAttr(llvm::Attribute::InlineHint);
emitOptimizationRemark(
F.getContext(), DEBUG_TYPE, F, DebugLoc(),
Twine("Applied inline hint to globally hot function '" + F.getName() +
"' with " + Twine(std::to_string(SamplesPercent)) +
"% of samples (threshold: " +
Twine(std::to_string(SampleProfileGlobalHotThreshold)) + "%)"));
std::string Msg;
raw_string_ostream S(Msg);
S << "Applied inline hint to globally hot function '" << F.getName()
<< "' with " << format("%.2f", SamplesPercent)
<< "% of samples (threshold: "
<< format("%.2f", SampleProfileGlobalHotThreshold.getValue()) << "%)";
S.flush();
emitOptimizationRemark(F.getContext(), DEBUG_TYPE, F, DebugLoc(), Msg);
return true;
}
@ -642,12 +645,14 @@ bool SampleProfileLoader::emitInlineHints(Function &F) {
// it globally cold.
if (SamplesPercent <= SampleProfileGlobalColdThreshold) {
F.addFnAttr(llvm::Attribute::Cold);
emitOptimizationRemark(
F.getContext(), DEBUG_TYPE, F, DebugLoc(),
Twine("Applied cold hint to globally cold function '" + F.getName() +
"' with " + Twine(std::to_string(SamplesPercent)) +
"% of samples (threshold: " +
Twine(std::to_string(SampleProfileGlobalColdThreshold)) + "%)"));
std::string Msg;
raw_string_ostream S(Msg);
S << "Applied cold hint to globally cold function '" << F.getName()
<< "' with " << format("%.2f", SamplesPercent)
<< "% of samples (threshold: "
<< format("%.2f", SampleProfileGlobalColdThreshold.getValue()) << "%)";
S.flush();
emitOptimizationRemark(F.getContext(), DEBUG_TYPE, F, DebugLoc(), Msg);
return true;
}