Second attempt:
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.
Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index a20e1c4..df086e8 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -180,9 +180,9 @@
// Pass Pipeline Configuration
//===----------------------------------------------------------------------===//
-bool X86TargetMachine::addInstSelector(PassManagerBase &PM, bool Fast) {
+bool X86TargetMachine::addInstSelector(PassManagerBase &PM, unsigned OptLevel) {
// Install an instruction selector.
- PM.add(createX86ISelDag(*this, Fast));
+ PM.add(createX86ISelDag(*this, OptLevel));
// If we're using Fast-ISel, clean up the mess.
if (EnableFastISel)
@@ -194,27 +194,29 @@
return false;
}
-bool X86TargetMachine::addPreRegAlloc(PassManagerBase &PM, bool Fast) {
+bool X86TargetMachine::addPreRegAlloc(PassManagerBase &PM, unsigned OptLevel) {
// Calculate and set max stack object alignment early, so we can decide
// whether we will need stack realignment (and thus FP).
PM.add(createX86MaxStackAlignmentCalculatorPass());
return false; // -print-machineinstr shouldn't print after this.
}
-bool X86TargetMachine::addPostRegAlloc(PassManagerBase &PM, bool Fast) {
+bool X86TargetMachine::addPostRegAlloc(PassManagerBase &PM, unsigned OptLevel) {
PM.add(createX86FloatingPointStackifierPass());
return true; // -print-machineinstr should print after this.
}
-bool X86TargetMachine::addAssemblyEmitter(PassManagerBase &PM, bool Fast,
- bool Verbose, raw_ostream &Out) {
+bool X86TargetMachine::addAssemblyEmitter(PassManagerBase &PM,
+ unsigned OptLevel,
+ bool Verbose,
+ raw_ostream &Out) {
assert(AsmPrinterCtor && "AsmPrinter was not linked in");
if (AsmPrinterCtor)
- PM.add(AsmPrinterCtor(Out, *this, Fast, Verbose));
+ PM.add(AsmPrinterCtor(Out, *this, OptLevel, Verbose));
return false;
}
-bool X86TargetMachine::addCodeEmitter(PassManagerBase &PM, bool Fast,
+bool X86TargetMachine::addCodeEmitter(PassManagerBase &PM, unsigned OptLevel,
bool DumpAsm, MachineCodeEmitter &MCE) {
// FIXME: Move this to TargetJITInfo!
// On Darwin, do not override 64-bit setting made in X86TargetMachine().
@@ -236,19 +238,20 @@
if (DumpAsm) {
assert(AsmPrinterCtor && "AsmPrinter was not linked in");
if (AsmPrinterCtor)
- PM.add(AsmPrinterCtor(errs(), *this, Fast, true));
+ PM.add(AsmPrinterCtor(errs(), *this, OptLevel, true));
}
return false;
}
-bool X86TargetMachine::addSimpleCodeEmitter(PassManagerBase &PM, bool Fast,
- bool DumpAsm, MachineCodeEmitter &MCE) {
+bool X86TargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
+ unsigned OptLevel, bool DumpAsm,
+ MachineCodeEmitter &MCE) {
PM.add(createX86CodeEmitterPass(*this, MCE));
if (DumpAsm) {
assert(AsmPrinterCtor && "AsmPrinter was not linked in");
if (AsmPrinterCtor)
- PM.add(AsmPrinterCtor(errs(), *this, Fast, true));
+ PM.add(AsmPrinterCtor(errs(), *this, OptLevel, true));
}
return false;