From 49e4d4b3ef810a6e6d1df67dc26dab5faae8e025 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Wed, 4 Jul 2012 00:09:58 +0000 Subject: Add early if-conversion support to X86. Implement the TII hooks needed by EarlyIfConversion to create cmov instructions and estimate their latency. Early if-conversion is still not enabled by default. llvm-svn: 159695 --- llvm/lib/Target/X86/X86TargetMachine.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (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 c66a5542946..b7ba568394b 100644 --- a/llvm/lib/Target/X86/X86TargetMachine.cpp +++ b/llvm/lib/Target/X86/X86TargetMachine.cpp @@ -140,7 +140,12 @@ public: } // namespace TargetPassConfig *X86TargetMachine::createPassConfig(PassManagerBase &PM) { - return new X86PassConfig(this, PM); + X86PassConfig *PC = new X86PassConfig(this, PM); + + if (Subtarget.hasCMov()) + PC->enablePass(&EarlyIfConverterID); + + return PC; } bool X86PassConfig::addInstSelector() { -- cgit v1.2.3