diff options
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCFastISel.cpp | 5 | ||||
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/fast-isel-ret.ll | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCFastISel.cpp b/llvm/lib/Target/PowerPC/PPCFastISel.cpp index 81682ddd235..41f5f3928ef 100644 --- a/llvm/lib/Target/PowerPC/PPCFastISel.cpp +++ b/llvm/lib/Target/PowerPC/PPCFastISel.cpp @@ -2098,7 +2098,9 @@ unsigned PPCFastISel::PPCMaterializeInt(const ConstantInt *CI, MVT VT, BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ImmReg) .addImm(CI->getSExtValue()); return ImmReg; - } else if (!UseSExt && isUInt<16>(CI->getZExtValue())) { + } else if (!UseSExt && isUInt<16>(CI->getSExtValue())) { + // Since LI will sign extend the constant we need to make sure that for + // our zeroext constants that the sign extended constant fits into 16-bits. unsigned Opc = (VT == MVT::i64) ? PPC::LI8 : PPC::LI; unsigned ImmReg = createResultReg(RC); BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ImmReg) @@ -2108,7 +2110,6 @@ unsigned PPCFastISel::PPCMaterializeInt(const ConstantInt *CI, MVT VT, // Construct the constant piecewise. int64_t Imm = CI->getZExtValue(); - if (VT == MVT::i64) return PPCMaterialize64BitInt(Imm, RC); else if (VT == MVT::i32) diff --git a/llvm/test/CodeGen/PowerPC/fast-isel-ret.ll b/llvm/test/CodeGen/PowerPC/fast-isel-ret.ll index e05ef7d9ab8..0adb5a93510 100644 --- a/llvm/test/CodeGen/PowerPC/fast-isel-ret.ll +++ b/llvm/test/CodeGen/PowerPC/fast-isel-ret.ll @@ -186,3 +186,12 @@ entry: ; ELF64: blr ret i32 -1 } + +define zeroext i16 @ret20() nounwind { +entry: +; ELF64-LABEL: ret20 +; ELF64: lis{{.*}}0 +; ELF64: ori{{.*}}32768 +; ELF64: blr + ret i16 32768 +} |
