Adding more arithmetic operators to MMX. This is an almost exact copy of
the addition. Please let me know if you have suggestions.
llvm-svn: 35055
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 2ab5e08..4fecb70 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -331,6 +331,10 @@
setOperationAction(ISD::ADD, MVT::v4i16, Legal);
setOperationAction(ISD::ADD, MVT::v2i32, Legal);
+ setOperationAction(ISD::SUB, MVT::v8i8, Legal);
+ setOperationAction(ISD::SUB, MVT::v4i16, Legal);
+ setOperationAction(ISD::SUB, MVT::v2i32, Legal);
+
setOperationAction(ISD::LOAD, MVT::v8i8, Promote);
AddPromotedToType (ISD::LOAD, MVT::v8i8, MVT::v2i32);
setOperationAction(ISD::LOAD, MVT::v4i16, Promote);
diff --git a/llvm/lib/Target/X86/X86InstrMMX.td b/llvm/lib/Target/X86/X86InstrMMX.td
index 5096c20..73f2f11 100644
--- a/llvm/lib/Target/X86/X86InstrMMX.td
+++ b/llvm/lib/Target/X86/X86InstrMMX.td
@@ -101,6 +101,16 @@
defm MMX_PADDUSB : MMXI_binop_rm_int<0xDC, "paddusb", int_x86_mmx_paddus_b, 1>;
defm MMX_PADDUSW : MMXI_binop_rm_int<0xDD, "paddusw", int_x86_mmx_paddus_w, 1>;
+defm MMX_PSUBB : MMXI_binop_rm<0xF8, "psubb", sub, v8i8>;
+defm MMX_PSUBW : MMXI_binop_rm<0xF9, "psubw", sub, v4i16>;
+defm MMX_PSUBD : MMXI_binop_rm<0xFA, "psubd", sub, v2i32>;
+
+defm MMX_PSUBSB : MMXI_binop_rm_int<0xE8, "psubsb" , int_x86_mmx_psubs_b>;
+defm MMX_PSUBSW : MMXI_binop_rm_int<0xE9, "psubsw" , int_x86_mmx_psubs_w>;
+
+defm MMX_PSUBUSB : MMXI_binop_rm_int<0xD8, "psubusb", int_x86_mmx_psubus_b>;
+defm MMX_PSUBUSW : MMXI_binop_rm_int<0xD9, "psubusw", int_x86_mmx_psubus_w>;
+
// Move Instructions
def MOVD64rr : MMXI<0x6E, MRMSrcReg, (ops VR64:$dst, GR32:$src),
"movd {$src, $dst|$dst, $src}", []>;