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| author | Misha Brukman <brukman+llvm@gmail.com> | 2004-07-28 00:56:04 +0000 |
|---|---|---|
| committer | Misha Brukman <brukman+llvm@gmail.com> | 2004-07-28 00:56:04 +0000 |
| commit | f7037385e22cde157757b3424a92df504d91ed19 (patch) | |
| tree | 34fad564b964d7bf5594e38425cb6fedfb0c4af7 /llvm/lib/Target/PowerPC | |
| parent | bd1d7dceb7287c3d6c582662cf93ab1d40c977f7 (diff) | |
| download | bcm5719-llvm-f7037385e22cde157757b3424a92df504d91ed19.tar.gz bcm5719-llvm-f7037385e22cde157757b3424a92df504d91ed19.zip | |
LI can only take signed values, so values > 32767 can only be loaded with ORI
llvm-svn: 15299
Diffstat (limited to 'llvm/lib/Target/PowerPC')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp | 8 | ||||
| -rw-r--r-- | llvm/lib/Target/PowerPC/PowerPCISelSimple.cpp | 8 |
2 files changed, 14 insertions, 2 deletions
diff --git a/llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp b/llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp index 062df545fc9..790aab42c55 100644 --- a/llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp +++ b/llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp @@ -555,7 +555,13 @@ void ISel::copyConstantToRegister(MachineBasicBlock *MBB, BuildMI(*MBB, IP, PPC32::ORI, 2, R+1).addReg(Temp).addImm(Val & 0xFFFF); } else if (Val < (1ULL << 48)) { unsigned Temp = makeAnotherReg(Type::IntTy); - BuildMI(*MBB, IP, PPC32::LI, 1, R).addSImm((Val >> 32) & 0xFFFF); + int HiBits = (Val >> 32) & 0xFFFF; + if (HiBits > 32767) { + BuildMI(*MBB, IP, PPC32::LI, 1, PPC32::R0).addImm(0); + BuildMI(*MBB, IP, PPC32::ORI, 2, R).addReg(PPC32::R0).addSImm(HiBits); + } else { + BuildMI(*MBB, IP, PPC32::LI, 1, R).addSImm(HiBits); + } BuildMI(*MBB, IP, PPC32::LIS, 1, Temp).addSImm((Val >> 16) & 0xFFFF); BuildMI(*MBB, IP, PPC32::ORI, 2, R+1).addReg(Temp).addImm(Val & 0xFFFF); } else { diff --git a/llvm/lib/Target/PowerPC/PowerPCISelSimple.cpp b/llvm/lib/Target/PowerPC/PowerPCISelSimple.cpp index 062df545fc9..790aab42c55 100644 --- a/llvm/lib/Target/PowerPC/PowerPCISelSimple.cpp +++ b/llvm/lib/Target/PowerPC/PowerPCISelSimple.cpp @@ -555,7 +555,13 @@ void ISel::copyConstantToRegister(MachineBasicBlock *MBB, BuildMI(*MBB, IP, PPC32::ORI, 2, R+1).addReg(Temp).addImm(Val & 0xFFFF); } else if (Val < (1ULL << 48)) { unsigned Temp = makeAnotherReg(Type::IntTy); - BuildMI(*MBB, IP, PPC32::LI, 1, R).addSImm((Val >> 32) & 0xFFFF); + int HiBits = (Val >> 32) & 0xFFFF; + if (HiBits > 32767) { + BuildMI(*MBB, IP, PPC32::LI, 1, PPC32::R0).addImm(0); + BuildMI(*MBB, IP, PPC32::ORI, 2, R).addReg(PPC32::R0).addSImm(HiBits); + } else { + BuildMI(*MBB, IP, PPC32::LI, 1, R).addSImm(HiBits); + } BuildMI(*MBB, IP, PPC32::LIS, 1, Temp).addSImm((Val >> 16) & 0xFFFF); BuildMI(*MBB, IP, PPC32::ORI, 2, R+1).addReg(Temp).addImm(Val & 0xFFFF); } else { |
