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[lib/LTO] Initial support for optimization remarks in the new API.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294882 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Davide Italiano 2017-02-12 03:31:30 +00:00
parent f92e231ad4
commit 9c7400c731
4 changed files with 52 additions and 0 deletions
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6
include/llvm/LTO/Config.h
View File

@ -68,6 +68,12 @@ struct Config {
/// Sample PGO profile path.
std::string SampleProfile;
/// Optimization remarks file path.
std::string RemarksFilename = "";
/// Whether to emit optimization remarks with hotness informations.
bool RemarksWithHotness = false;
bool ShouldDiscardValueNames = true;
DiagnosticHandlerFunction DiagHandler;

6
lib/LTO/LTOBackend.cpp
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@ -366,6 +366,12 @@ Error lto::backend(Config &C, AddStreamFn AddStream,
handleAsmUndefinedRefs(*Mod, *TM);
// Setup optimization remarks.
auto DiagFileOrErr = lto::setupOptimizationRemarks(
Mod->getContext(), C.RemarksFilename, C.RemarksWithHotness);
if (!DiagFileOrErr)
return DiagFileOrErr.takeError();
if (!C.CodeGenOnly)
if (!opt(C, TM.get(), 0, *Mod, /*IsThinLTO=*/false, CombinedIndex))
return Error::success();

33
test/LTO/Resolution/X86/diagnostic-handler-remarks.ll Normal file
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@ -0,0 +1,33 @@
; RUN: llvm-as < %s >%t.bc
; RUN: rm -f %t.yaml
; RUN: llvm-lto2 -pass-remarks-output=%t.yaml \
; RUN: -r %t.bc,tinkywinky,p \
; RUN: -r %t.bc,patatino,px \
; RUN: -r %t.bc,main,px -o %t.o %t.bc 2>&1
; RUN: cat %t.yaml | FileCheck %s -check-prefix=YAML
; YAML: --- !Passed
; YAML-NEXT: Pass: inline
; YAML-NEXT: Name: Inlined
; YAML-NEXT: Function: main
; YAML-NEXT: Args:
; YAML-NEXT: - Callee: tinkywinky
; YAML-NEXT: - String: ' inlined into '
; YAML-NEXT: - Caller: main
; YAML-NEXT: ...
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-scei-ps4"
declare i32 @patatino()
define i32 @tinkywinky() {
%a = call i32 @patatino()
ret i32 %a
}
define i32 @main() {
%i = call i32 @tinkywinky()
ret i32 %i
}

7
tools/llvm-lto2/llvm-lto2.cpp
View File

@ -90,6 +90,10 @@ static cl::opt<std::string> DefaultTriple(
cl::desc(
"Replace unspecified target triples in input files with this triple"));
static cl::opt<std::string>
OptRemarksOutput("pass-remarks-output",
cl::desc("YAML output file for optimization remarks"));
static void check(Error E, std::string Msg) {
if (!E)
return;
@ -176,6 +180,9 @@ int main(int argc, char **argv) {
check(Conf.addSaveTemps(OutputFilename + "."),
"Config::addSaveTemps failed");
// Optimization remarks.
Conf.RemarksFilename = OptRemarksOutput;
// Run a custom pipeline, if asked for.
Conf.OptPipeline = OptPipeline;
Conf.AAPipeline = AAPipeline;