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llvm-project/llvm/lib/Target/CellSPU/SPU128InstrInfo.td

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CellSPU: - Fix bugs 3194, 3195: i128 load/stores produce correct code (although, we need to ensure that i128 is 16-byte aligned in real life), and 128 zero- extends are supported. - New td file: SPU128InstrInfo.td: this is where all new i128 support should be put in the future. - Continue to hammer on i64 operations and test cases; ensure that the only remaining problem will be i64 mul. llvm-svn: 61784
2009-01-06 11:36:14 +08:00
//===--- SPU128InstrInfo.td - Cell SPU 128-bit operations -*- tablegen -*--===//
//
// Cell SPU 128-bit operations
//
//===----------------------------------------------------------------------===//
// zext 32->128: Zero extend 32-bit to 128-bit
def : Pat<(i128 (zext R32C:$rSrc)),
(ROTQMBYIr128_zext_r32 R32C:$rSrc, 12)>;
// zext 64->128: Zero extend 64-bit to 128-bit
def : Pat<(i128 (zext R64C:$rSrc)),
(ROTQMBYIr128_zext_r64 R64C:$rSrc, 8)>;
// zext 16->128: Zero extend 16-bit to 128-bit
def : Pat<(i128 (zext R16C:$rSrc)),
(ROTQMBYIr128_zext_r32 (ANDi16i32 R16C:$rSrc, (ILAr32 0xffff)), 12)>;
// zext 8->128: Zero extend 8-bit to 128-bit
def : Pat<(i128 (zext R8C:$rSrc)),
(ROTQMBYIr128_zext_r32 (ANDIi8i32 R8C:$rSrc, 0xf), 12)>;
CellSPU: - Ensure that (operation) legalization emits proper FDIV libcall when needed. - Fix various bugs encountered during llvm-spu-gcc build, along with various cleanups. - Start supporting double precision comparisons for remaining libgcc2 build. Discovered interesting DAGCombiner feature, which is currently solved via custom lowering (64-bit constants are not legal on CellSPU, but DAGCombiner insists on inserting one anyway.) - Update README. llvm-svn: 62664
2009-01-21 12:58:48 +08:00
// anyext 32->128: Zero extend 32-bit to 128-bit
def : Pat<(i128 (anyext R32C:$rSrc)),
(ROTQMBYIr128_zext_r32 R32C:$rSrc, 12)>;
// anyext 64->128: Zero extend 64-bit to 128-bit
def : Pat<(i128 (anyext R64C:$rSrc)),
(ROTQMBYIr128_zext_r64 R64C:$rSrc, 8)>;
// anyext 16->128: Zero extend 16-bit to 128-bit
def : Pat<(i128 (anyext R16C:$rSrc)),
(ROTQMBYIr128_zext_r32 (ANDi16i32 R16C:$rSrc, (ILAr32 0xffff)), 12)>;
// anyext 8->128: Zero extend 8-bit to 128-bit
def : Pat<(i128 (anyext R8C:$rSrc)),
(ROTQMBYIr128_zext_r32 (ANDIi8i32 R8C:$rSrc, 0xf), 12)>;
// Shift left
def : Pat<(shl GPRC:$rA, R32C:$rB),
(SHLQBYBIr128 (SHLQBIr128 GPRC:$rA, R32C:$rB), R32C:$rB)>;