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Make fast isel win64-aware w.r.t. call-clobbered regs

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109069 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2010-07-22 00:09:39 +00:00
parent 4a863e2c75
commit 0c07b64fec
1 changed files with 14 additions and 3 deletions
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17
lib/Target/X86/X86FastISel.cpp
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@ -1646,15 +1646,26 @@ bool X86FastISel::X86SelectCall(const Instruction *I) {
MachineInstrBuilder MIB;
if (CalleeOp) {
// Register-indirect call.
unsigned CallOpc = Subtarget->is64Bit() ? X86::CALL64r : X86::CALL32r;
unsigned CallOpc;
if (Subtarget->isTargetWin64())
CallOpc = X86::WINCALL64r;
else if (Subtarget->is64Bit())
CallOpc = X86::CALL64r;
else
CallOpc = X86::CALL32r;
MIB = BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(CallOpc))
.addReg(CalleeOp);
} else {
// Direct call.
assert(GV && "Not a direct call");
unsigned CallOpc =
Subtarget->is64Bit() ? X86::CALL64pcrel32 : X86::CALLpcrel32;
unsigned CallOpc;
if (Subtarget->isTargetWin64())
CallOpc = X86::WINCALL64pcrel32;
else if (Subtarget->is64Bit())
CallOpc = X86::CALL64pcrel32;
else
CallOpc = X86::CALLpcrel32;
// See if we need any target-specific flags on the GV operand.
unsigned char OpFlags = 0;