From df2e425f2a3b64eb17be927539cd39cb1f1c5f77 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 8 Nov 2005 02:12:47 +0000 Subject: [PATCH] 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 --- include/llvm/Target/TargetMachine.h | 7 ++++--- lib/Target/PowerPC/PPCTargetMachine.cpp | 7 ++++--- lib/Target/PowerPC/PPCTargetMachine.h | 2 +- 3 files changed, 9 insertions(+), 7 deletions(-) diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h index aae7d901fbe..d13a4ed78df 100644 --- a/include/llvm/Target/TargetMachine.h +++ b/include/llvm/Target/TargetMachine.h @@ -143,11 +143,12 @@ public: /// addPassesToEmitFile - Add passes to the specified pass manager to get /// the specified file emitted. Typically this will involve several steps of - /// code generation. This method should return true if emission of this file - /// type is not supported. + /// code generation. If Fast is set to true, the code generator should emit + /// code as fast as possible, without regard for compile time. This method + /// should return true if emission of this file type is not supported. /// virtual bool addPassesToEmitFile(PassManager &PM, std::ostream &Out, - CodeGenFileType FileType) { + CodeGenFileType FileType, bool Fast) { return true; } diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp index 9a88750b398..c92122ec7d8 100644 --- a/lib/Target/PowerPC/PPCTargetMachine.cpp +++ b/lib/Target/PowerPC/PPCTargetMachine.cpp @@ -77,11 +77,12 @@ PPCTargetMachine::PPCTargetMachine(const Module &M, IntrinsicLowering *IL, /// 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 @@ bool PPCTargetMachine::addPassesToEmitFile(PassManager &PM, 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 1295a599107..dff48348de5 100644 --- a/lib/Target/PowerPC/PPCTargetMachine.h +++ b/lib/Target/PowerPC/PPCTargetMachine.h @@ -53,7 +53,7 @@ public: 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); -- 2.34.1