LI can only take signed values, so values > 32767 can only be loaded with ORI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15299 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPC32ISelSimple.cpp b/lib/Target/PowerPC/PPC32ISelSimple.cpp
index 062df54..790aab4 100644
--- a/lib/Target/PowerPC/PPC32ISelSimple.cpp
+++ b/lib/Target/PowerPC/PPC32ISelSimple.cpp
@@ -555,7 +555,13 @@
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 {