diff options
Diffstat (limited to 'contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp b/contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp index e3461c8..ed1707d 100644 --- a/contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp +++ b/contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp @@ -26,8 +26,8 @@ #define DEBUG_TYPE "x86-codegen" #include "X86.h" #include "X86InstrInfo.h" +#include "llvm/InlineAsm.h" #include "llvm/ADT/DepthFirstIterator.h" -#include "llvm/ADT/DenseMap.h" #include "llvm/ADT/SmallPtrSet.h" #include "llvm/ADT/SmallVector.h" #include "llvm/ADT/Statistic.h" @@ -37,7 +37,6 @@ #include "llvm/CodeGen/MachineInstrBuilder.h" #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/Passes.h" -#include "llvm/InlineAsm.h" #include "llvm/Support/Debug.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/raw_ostream.h" @@ -219,7 +218,7 @@ namespace { /// getSTReg - Return the X86::ST(i) register which contains the specified /// FP<RegNo> register. unsigned getSTReg(unsigned RegNo) const { - return StackTop - 1 - getSlot(RegNo) + llvm::X86::ST0; + return StackTop - 1 - getSlot(RegNo) + X86::ST0; } // pushReg - Push the specified FP<n> register onto the stack. @@ -570,8 +569,8 @@ void FPS::finishBlockStack() { namespace { struct TableEntry { - unsigned from; - unsigned to; + uint16_t from; + uint16_t to; bool operator<(const TableEntry &TE) const { return from < TE.from; } friend bool operator<(const TableEntry &TE, unsigned V) { return TE.from < V; @@ -1644,6 +1643,30 @@ void FPS::handleSpecialFP(MachineBasicBlock::iterator &I) { return; } + case X86::WIN_FTOL_32: + case X86::WIN_FTOL_64: { + // Push the operand into ST0. + MachineOperand &Op = MI->getOperand(0); + assert(Op.isUse() && Op.isReg() && + Op.getReg() >= X86::FP0 && Op.getReg() <= X86::FP6); + unsigned FPReg = getFPReg(Op); + if (Op.isKill()) + moveToTop(FPReg, I); + else + duplicateToTop(FPReg, FPReg, I); + + // Emit the call. This will pop the operand. + BuildMI(*MBB, I, MI->getDebugLoc(), TII->get(X86::CALLpcrel32)) + .addExternalSymbol("_ftol2") + .addReg(X86::ST0, RegState::ImplicitKill) + .addReg(X86::EAX, RegState::Define | RegState::Implicit) + .addReg(X86::EDX, RegState::Define | RegState::Implicit) + .addReg(X86::EFLAGS, RegState::Define | RegState::Implicit); + --StackTop; + + break; + } + case X86::RET: case X86::RETI: // If RET has an FP register use operand, pass the first one in ST(0) and |
