summaryrefslogtreecommitdiffstats
path: root/lib/CodeGen/BackendUtil.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/CodeGen/BackendUtil.cpp')
-rw-r--r--lib/CodeGen/BackendUtil.cpp29
1 files changed, 24 insertions, 5 deletions
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 9897b1b..1264473 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -30,6 +30,7 @@
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Transforms/Instrumentation.h"
using namespace clang;
using namespace llvm;
@@ -108,9 +109,9 @@ void EmitAssemblyHelper::CreatePasses() {
OptLevel = 0;
Inlining = CodeGenOpts.NoInlining;
}
-
+
FunctionPassManager *FPM = getPerFunctionPasses();
-
+
TargetLibraryInfo *TLI =
new TargetLibraryInfo(Triple(TheModule->getTargetTriple()));
if (!CodeGenOpts.SimplifyLibCalls)
@@ -133,8 +134,10 @@ void EmitAssemblyHelper::CreatePasses() {
//
// FIXME: Derive these constants in a principled fashion.
unsigned Threshold = 225;
- if (CodeGenOpts.OptimizeSize)
+ if (CodeGenOpts.OptimizeSize == 1) //-Os
Threshold = 75;
+ else if (CodeGenOpts.OptimizeSize == 2) //-Oz
+ Threshold = 25;
else if (OptLevel > 2)
Threshold = 275;
InliningPass = createFunctionInliningPass(Threshold);
@@ -146,12 +149,19 @@ void EmitAssemblyHelper::CreatePasses() {
}
PassManager *MPM = getPerModulePasses();
-
+
TLI = new TargetLibraryInfo(Triple(TheModule->getTargetTriple()));
if (!CodeGenOpts.SimplifyLibCalls)
TLI->disableAllFunctions();
MPM->add(TLI);
+ if (CodeGenOpts.EmitGcovArcs || CodeGenOpts.EmitGcovNotes) {
+ MPM->add(createGCOVProfilerPass(CodeGenOpts.EmitGcovNotes,
+ CodeGenOpts.EmitGcovArcs));
+ if (!CodeGenOpts.DebugInfo)
+ MPM->add(createStripSymbolsPass(true));
+ }
+
// For now we always create per module passes.
llvm::createStandardModulePasses(MPM, OptLevel,
CodeGenOpts.OptimizeSize,
@@ -190,7 +200,7 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
}
// Set float ABI type.
- if (CodeGenOpts.FloatABI == "soft")
+ if (CodeGenOpts.FloatABI == "soft" || CodeGenOpts.FloatABI == "softfp")
llvm::FloatABIType = llvm::FloatABI::Soft;
else if (CodeGenOpts.FloatABI == "hard")
llvm::FloatABIType = llvm::FloatABI::Hard;
@@ -248,6 +258,8 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
}
if (llvm::TimePassesIsEnabled)
BackendArgs.push_back("-time-passes");
+ for (unsigned i = 0, e = CodeGenOpts.BackendOptions.size(); i != e; ++i)
+ BackendArgs.push_back(CodeGenOpts.BackendOptions[i].c_str());
BackendArgs.push_back(0);
llvm::cl::ParseCommandLineOptions(BackendArgs.size() - 1,
const_cast<char **>(&BackendArgs[0]));
@@ -266,6 +278,10 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
if (CodeGenOpts.RelaxAll)
TM->setMCRelaxAll(true);
+ if (CodeGenOpts.SaveTempLabels)
+ TM->setMCSaveTempLabels(true);
+ if (CodeGenOpts.NoDwarf2CFIAsm)
+ TM->setMCUseCFI(false);
// Create the code generator passes.
PassManager *PM = getCodeGenPasses();
@@ -319,6 +335,9 @@ void EmitAssemblyHelper::EmitAssembly(BackendAction Action, raw_ostream *OS) {
return;
}
+ // Before executing passes, print the final values of the LLVM options.
+ cl::PrintOptionValues();
+
// Run passes. For now we do all passes at once, but eventually we
// would like to have the option of streaming code generation.
OpenPOWER on IntegriCloud