diff options
Diffstat (limited to 'llvm/lib/Target/X86')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrXOP.td | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrXOP.td b/llvm/lib/Target/X86/X86InstrXOP.td index 2b296e1e5b8..efd627d6b86 100644 --- a/llvm/lib/Target/X86/X86InstrXOP.td +++ b/llvm/lib/Target/X86/X86InstrXOP.td @@ -183,6 +183,17 @@ let ExeDomain = SSEPackedInt in { defm VPMACSDD : xop4opm2<0x9E, "vpmacsdd", int_x86_xop_vpmacsdd>; } +// IFMA patterns - for cases where we can safely ignore the overflow bits from +// the multiply. +let Predicates = [HasXOP] in { + def : Pat<(v8i16 (add (mul (v8i16 VR128:$src1), (v8i16 VR128:$src2)), + (v8i16 VR128:$src3))), + (VPMACSWWrr VR128:$src1, VR128:$src2, VR128:$src3)>; + def : Pat<(v4i32 (add (mul (v4i32 VR128:$src1), (v4i32 VR128:$src2)), + (v4i32 VR128:$src3))), + (VPMACSDDrr VR128:$src1, VR128:$src2, VR128:$src3)>; +} + // Instruction where second source can be memory, third must be imm8 multiclass xopvpcom<bits<8> opc, string Suffix, SDNode OpNode, ValueType vt128> { let isCommutable = 1 in |
