Add a new option to indicate we want the code generator to emit code quickly,
not spending tons of time microoptimizing it. This is useful for an -O0
style of build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24235 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp
index 9a88750..c92122e 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -77,11 +77,12 @@
///
bool PPCTargetMachine::addPassesToEmitFile(PassManager &PM,
std::ostream &Out,
- CodeGenFileType FileType) {
+ CodeGenFileType FileType,
+ bool Fast) {
if (FileType != TargetMachine::AssemblyFile) return true;
// Run loop strength reduction before anything else.
- PM.add(createLoopStrengthReducePass());
+ if (!Fast) PM.add(createLoopStrengthReducePass());
// FIXME: Implement efficient support for garbage collection intrinsics.
PM.add(createLowerGCPass());
@@ -90,7 +91,7 @@
PM.add(createLowerInvokePass());
// Clean up after other passes, e.g. merging critical edges.
- PM.add(createCFGSimplificationPass());
+ if (!Fast) PM.add(createCFGSimplificationPass());
// FIXME: Implement the switch instruction in the instruction selector!
PM.add(createLowerSwitchPass());
diff --git a/lib/Target/PowerPC/PPCTargetMachine.h b/lib/Target/PowerPC/PPCTargetMachine.h
index 1295a59..dff4834 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/lib/Target/PowerPC/PPCTargetMachine.h
@@ -53,7 +53,7 @@
static unsigned getModuleMatchQuality(const Module &M);
virtual bool addPassesToEmitFile(PassManager &PM, std::ostream &Out,
- CodeGenFileType FileType);
+ CodeGenFileType FileType, bool Fast);
bool addPassesToEmitMachineCode(FunctionPassManager &PM,
MachineCodeEmitter &MCE);