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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31785 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-11-16 18:13:49 +00:00
parent 0ca558f0ea
commit cb53595d70
1 changed files with 6 additions and 1 deletions
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7
lib/Target/PowerPC/PPCBranchSelector.cpp
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@ -19,12 +19,16 @@
#include "PPCInstrBuilder.h" #include "PPCInstrBuilder.h"
#include "PPCInstrInfo.h" #include "PPCInstrInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetAsmInfo.h" #include "llvm/Target/TargetAsmInfo.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/Compiler.h"
#include <map> #include <map>
using namespace llvm; using namespace llvm;
static Statistic<> NumExpanded("ppc-branch-select",
"Num branches expanded to long format");
namespace { namespace {
struct VISIBILITY_HIDDEN PPCBSel : public MachineFunctionPass { struct VISIBILITY_HIDDEN PPCBSel : public MachineFunctionPass {
/// OffsetMap - Mapping between BB and byte offset from start of function. /// OffsetMap - Mapping between BB and byte offset from start of function.
@ -131,6 +135,7 @@ bool PPCBSel::runOnMachineFunction(MachineFunction &Fn) {
BuildMI(*MBB, MBBJ, Opcode, 2).addReg(CRReg).addMBB(trueMBB); BuildMI(*MBB, MBBJ, Opcode, 2).addReg(CRReg).addMBB(trueMBB);
} else { } else {
// Long branch, skip next branch instruction (i.e. $PC+8). // Long branch, skip next branch instruction (i.e. $PC+8).
++NumExpanded;
BuildMI(*MBB, MBBJ, Inverted, 2).addReg(CRReg).addImm(2); BuildMI(*MBB, MBBJ, Inverted, 2).addReg(CRReg).addImm(2);
BuildMI(*MBB, MBBJ, PPC::B, 1).addMBB(trueMBB); BuildMI(*MBB, MBBJ, PPC::B, 1).addMBB(trueMBB);
} }