Ger rid of some dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72494 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 22440b421f36db5687f2c7c56a335d5cf85849d3..5643b99319841765915218d4d76195058f5fd527 100644 (file)
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -71,9 +71,6 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
   setIndexedStoreAction(ISD::PRE_INC, MVT::i32, Legal);
   setIndexedStoreAction(ISD::PRE_INC, MVT::i64, Legal);
 
-  // Shortening conversions involving ppcf128 get expanded (2 regs -> 1 reg)
-  setConvertAction(MVT::ppcf128, MVT::f64, Expand);
-  setConvertAction(MVT::ppcf128, MVT::f32, Expand);
   // This is used in the ppcf128->int sequence.  Note it has different semantics
   // from FP_ROUND:  that rounds to nearest, this rounds to zero.
   setOperationAction(ISD::FP_ROUND_INREG, MVT::ppcf128, Custom);

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index a84a542bea3196cfa91817790cab92818f757691..b89eef0fb214493210c7bf6f20f55a0d02d0f370 100644 (file)
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -55,8 +55,6 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
   X86ScalarSSEf32 = Subtarget->hasSSE1();
   X86StackPtr = Subtarget->is64Bit() ? X86::RSP : X86::ESP;
 
-  bool Fast = false;
-
   RegInfo = TM.getRegisterInfo();
   TD = getTargetData();
 
@@ -410,16 +408,6 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
     // cases we handle.
     addLegalFPImmediate(APFloat(+0.0)); // xorpd
     addLegalFPImmediate(APFloat(+0.0f)); // xorps
-
-    // Floating truncations from f80 and extensions to f80 go through memory.
-    // If optimizing, we lie about this though and handle it in
-    // InstructionSelectPreprocess so that dagcombine2 can hack on these.
-    if (Fast) {
-      setConvertAction(MVT::f32, MVT::f80, Expand);
-      setConvertAction(MVT::f64, MVT::f80, Expand);
-      setConvertAction(MVT::f80, MVT::f32, Expand);
-      setConvertAction(MVT::f80, MVT::f64, Expand);
-    }
   } else if (!UseSoftFloat && X86ScalarSSEf32) {
     // Use SSE for f32, x87 for f64.
     // Set up the FP register classes.
@@ -449,18 +437,6 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
     addLegalFPImmediate(APFloat(-0.0)); // FLD0/FCHS
     addLegalFPImmediate(APFloat(-1.0)); // FLD1/FCHS
 
-    // SSE <-> X87 conversions go through memory.  If optimizing, we lie about
-    // this though and handle it in InstructionSelectPreprocess so that
-    // dagcombine2 can hack on these.
-    if (Fast) {
-      setConvertAction(MVT::f32, MVT::f64, Expand);
-      setConvertAction(MVT::f32, MVT::f80, Expand);
-      setConvertAction(MVT::f80, MVT::f32, Expand);
-      setConvertAction(MVT::f64, MVT::f32, Expand);
-      // And x87->x87 truncations also.
-      setConvertAction(MVT::f80, MVT::f64, Expand);
-    }
-
     if (!UnsafeFPMath) {
       setOperationAction(ISD::FSIN           , MVT::f64  , Expand);
       setOperationAction(ISD::FCOS           , MVT::f64  , Expand);
@@ -476,15 +452,6 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
     setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand);
     setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand);
 
-    // Floating truncations go through memory.  If optimizing, we lie about
-    // this though and handle it in InstructionSelectPreprocess so that
-    // dagcombine2 can hack on these.
-    if (Fast) {
-      setConvertAction(MVT::f80, MVT::f32, Expand);
-      setConvertAction(MVT::f64, MVT::f32, Expand);
-      setConvertAction(MVT::f80, MVT::f64, Expand);
-    }
-
     if (!UnsafeFPMath) {
       setOperationAction(ISD::FSIN           , MVT::f64  , Expand);
       setOperationAction(ISD::FCOS           , MVT::f64  , Expand);