From ca4ca5520b3bb1fffd817a7686287fae4217e63c Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 7 Jan 2005 07:50:50 +0000 Subject: Allow the selection-dag based selector to be diabled with -disable-pattern-isel. For now, this is the default, as the current selector is missing some big pieces. To enable the new selector, pass -disable-pattern-isel=false to llc or lli. llvm-svn: 19335 --- llvm/lib/Target/X86/X86TargetMachine.cpp | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'llvm/lib/Target/X86/X86TargetMachine.cpp') diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp index 0e3eea43924..daa97b2464a 100644 --- a/llvm/lib/Target/X86/X86TargetMachine.cpp +++ b/llvm/lib/Target/X86/X86TargetMachine.cpp @@ -41,6 +41,9 @@ namespace { cl::opt DisableOutput("disable-x86-llc-output", cl::Hidden, cl::desc("Disable the X86 asm printer, for use " "when profiling the code generator.")); + cl::opt DisablePatternISel("disable-pattern-isel", cl::Hidden, + cl::desc("Disable the pattern isel XXX FIXME"), + cl::init(true)); #if 0 // FIXME: This should eventually be handled with target triples and @@ -110,7 +113,10 @@ bool X86TargetMachine::addPassesToEmitAssembly(PassManager &PM, // Make sure that no unreachable blocks are instruction selected. PM.add(createUnreachableBlockEliminationPass()); - PM.add(createX86SimpleInstructionSelector(*this)); + if (DisablePatternISel) + PM.add(createX86SimpleInstructionSelector(*this)); + else + PM.add(createX86PatternInstructionSelector(*this)); // Run optional SSA-based machine code optimizations next... if (!NoSSAPeephole) @@ -165,7 +171,10 @@ void X86JITInfo::addPassesToJITCompile(FunctionPassManager &PM) { // Make sure that no unreachable blocks are instruction selected. PM.add(createUnreachableBlockEliminationPass()); - PM.add(createX86SimpleInstructionSelector(TM)); + if (DisablePatternISel) + PM.add(createX86SimpleInstructionSelector(TM)); + else + PM.add(createX86PatternInstructionSelector(TM)); // Run optional SSA-based machine code optimizations next... if (!NoSSAPeephole) -- cgit v1.2.3