[llvm-commits] [llvm] r75951 - in /llvm/trunk/lib/Target/SystemZ: SystemZISelLowering.cpp SystemZInstrInfo.td

[Anton Korobeynikov]

Author: asl
Date: Thu Jul 16 08:53:55 2009
New Revision: 75951

URL: http://llvm.org/viewvc/llvm-project?rev=75951&view=rev
Log:
Preliminary mul lowering

Modified:
    llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
    llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.td

Modified: llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp?rev=75951&r1=75950&r2=75951&view=diff

==============================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp Thu Jul 16 08:53:55 2009
@@ -72,6 +72,17 @@
   setOperationAction(ISD::SELECT,           MVT::i64, Expand);
   setOperationAction(ISD::SELECT_CC,        MVT::i32, Custom);
   setOperationAction(ISD::SELECT_CC,        MVT::i64, Custom);
+
+  // FIXME: We can lower this better
+  setOperationAction(ISD::MULHS,            MVT::i32, Expand);
+  setOperationAction(ISD::MULHS,            MVT::i64, Expand);
+  setOperationAction(ISD::MULHU,            MVT::i32, Expand);
+  setOperationAction(ISD::MULHU,            MVT::i64, Expand);
+
+  setOperationAction(ISD::SMUL_LOHI,        MVT::i32, Expand);
+  setOperationAction(ISD::SMUL_LOHI,        MVT::i64, Expand);
+  setOperationAction(ISD::UMUL_LOHI,        MVT::i32, Expand);
+  setOperationAction(ISD::UMUL_LOHI,        MVT::i64, Expand);
 }
 
 SDValue SystemZTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {

Modified: llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.td?rev=75951&r1=75950&r2=75951&view=diff

==============================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.td (original)
+++ llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.td Thu Jul 16 08:53:55 2009
@@ -608,6 +608,39 @@
                          [(set GR64:$dst, (xor GR64:$src1, i64hi32:$src2))]>;
 
 } // Defs = [PSW]
+
+let isCommutable = 1 in { // X = MUL Y, Z == X = MUL Z, Y
+def MUL32rr : Pseudo<(outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
+                     "msr\t{$dst, $src2}",
+                     [(set GR32:$dst, (mul GR32:$src1, GR32:$src2))]>;
+def MUL64rr : Pseudo<(outs GR64:$dst), (ins GR64:$src1, GR64:$src2),
+                     "msgr\t{$dst, $src2}",
+                     [(set GR64:$dst, (mul GR64:$src1, GR64:$src2))]>;
+}
+
+def MUL32ri16   : Pseudo<(outs GR32:$dst), (ins GR32:$src1, i32i16imm:$src2),
+                         "mhi\t{$dst, $src2}",
+                         [(set GR32:$dst, (mul GR32:$src1, i32immSExt16:$src2))]>;
+def MUL32ri     : Pseudo<(outs GR32:$dst), (ins GR32:$src1, i32imm:$src2),
+                         "msfi\t{$dst, $src2}",
+                         [(set GR32:$dst, (mul GR32:$src1, imm:$src2))]>;
+def MUL64ri16   : Pseudo<(outs GR64:$dst), (ins GR64:$src1, i64imm:$src2),
+                         "mghi\t{$dst, $src2}",
+                         [(set GR64:$dst, (mul GR64:$src1, immSExt16:$src2))]>;
+def MUL64ri32   : Pseudo<(outs GR64:$dst), (ins GR64:$src1, i64i32imm:$src2),
+                         "msgfi\t{$dst, $src2}",
+                         [(set GR64:$dst, (mul GR64:$src1, i64immSExt32:$src2))]>;
+
+def MUL32rm : Pseudo<(outs GR32:$dst), (ins GR32:$src1, rriaddr:$src2),
+                     "msy\t{$dst, $src2}",
+                     [(set GR32:$dst, (mul GR32:$src1, (load rriaddr:$src2)))]>;
+def MUL64rm : Pseudo<(outs GR64:$dst), (ins GR64:$src1, rriaddr:$src2),
+                     "msgy\t{$dst, $src2}",
+                     [(set GR64:$dst, (mul GR64:$src1, (load rriaddr:$src2)))]>;
+
+def MULSX64rr32 : Pseudo<(outs GR64:$dst), (ins GR64:$src1, GR32:$src2),
+                         "msgfr\t{$dst, $src2}",
+                         [(set GR64:$dst, (mul GR64:$src1, (sext GR32:$src2)))]>;
 } // isTwoAddress = 1
 
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