diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2011-02-26 22:03:50 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2011-02-26 22:03:50 +0000 |
| commit | d0e4e96dc17a6c1c6de3340842c80f0e187ba349 (patch) | |
| tree | ddf53b8bd9235bcb0b8aae16c5e22310dcdad665 /lib/Target/ARM/MLxExpansionPass.cpp | |
| parent | cf099d11218cb6f6c5cce947d6738e347f07fb12 (diff) | |
Notes
Diffstat (limited to 'lib/Target/ARM/MLxExpansionPass.cpp')
| -rw-r--r-- | lib/Target/ARM/MLxExpansionPass.cpp | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/lib/Target/ARM/MLxExpansionPass.cpp b/lib/Target/ARM/MLxExpansionPass.cpp index f9e86eb36e04..9a27e2f47064 100644 --- a/lib/Target/ARM/MLxExpansionPass.cpp +++ b/lib/Target/ARM/MLxExpansionPass.cpp @@ -132,22 +132,16 @@ unsigned MLxExpansion::getDefReg(MachineInstr *MI) const { } bool MLxExpansion::hasRAWHazard(unsigned Reg, MachineInstr *MI) const { - const TargetInstrDesc &TID = MI->getDesc(); // FIXME: Detect integer instructions properly. + const TargetInstrDesc &TID = MI->getDesc(); unsigned Domain = TID.TSFlags & ARMII::DomainMask; - if (Domain == ARMII::DomainVFP) { - unsigned Opcode = TID.getOpcode(); - if (Opcode == ARM::VSTRS || Opcode == ARM::VSTRD || - Opcode == ARM::VMOVRS || Opcode == ARM::VMOVRRD) - return false; - } else if (Domain == ARMII::DomainNEON) { - if (TID.mayStore() || TID.mayLoad()) - return false; - } else { + if (TID.mayStore()) return false; - } - - return MI->readsRegister(Reg, TRI); + unsigned Opcode = TID.getOpcode(); + if (Opcode == ARM::VMOVRS || Opcode == ARM::VMOVRRD) + return false; + if ((Domain & ARMII::DomainVFP) || (Domain & ARMII::DomainNEON)) + return MI->readsRegister(Reg, TRI); return false; } |