[llvm-branch-commits] [llvm-branch] r235973 - Merging r232943:

Daniel Sanders daniel.sanders at imgtec.com
Tue Apr 28 02:39:56 PDT 2015


Author: dsanders
Date: Tue Apr 28 04:39:55 2015
New Revision: 235973

URL: http://llvm.org/viewvc/llvm-project?rev=235973&view=rev
Log:
Merging r232943:
------------------------------------------------------------------------
r232943 | petarj | 2015-03-23 12:28:13 +0000 (Mon, 23 Mar 2015) | 10 lines

Fix sign extension for MIPS64 in makeLibCall function

Fixing sign extension in makeLibCall for MIPS64. In MIPS64 architecture all
32 bit arguments (int, unsigned int, float 32 (soft float)) must be sign
extended. This fixes test "MultiSource/Applications/oggenc/".

Patch by Strahinja Petrovic.

Differential Revision: http://reviews.llvm.org/D7791

------------------------------------------------------------------------

Added:
    llvm/branches/release_36/test/CodeGen/Mips/mips64signextendsesf.ll
Modified:
    llvm/branches/release_36/include/llvm/Target/TargetLowering.h
    llvm/branches/release_36/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.cpp
    llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.h
    llvm/branches/release_36/test/CodeGen/Mips/mips64-f128.ll

Modified: llvm/branches/release_36/include/llvm/Target/TargetLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/include/llvm/Target/TargetLowering.h?rev=235973&r1=235972&r2=235973&view=diff
==============================================================================
--- llvm/branches/release_36/include/llvm/Target/TargetLowering.h (original)
+++ llvm/branches/release_36/include/llvm/Target/TargetLowering.h Tue Apr 28 04:39:55 2015
@@ -1060,6 +1060,11 @@ public:
     return false;
   }
 
+  /// Returns true if arguments should be sign-extended in lib calls.
+  virtual bool shouldSignExtendTypeInLibCall(EVT Type, bool IsSigned) const {
+    return IsSigned;
+ }
+
   /// Returns true if the given (atomic) load should be expanded by the
   /// IR-level AtomicExpand pass into a load-linked instruction
   /// (through emitLoadLinked()).

Modified: llvm/branches/release_36/lib/CodeGen/SelectionDAG/TargetLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/lib/CodeGen/SelectionDAG/TargetLowering.cpp?rev=235973&r1=235972&r2=235973&view=diff
==============================================================================
--- llvm/branches/release_36/lib/CodeGen/SelectionDAG/TargetLowering.cpp (original)
+++ llvm/branches/release_36/lib/CodeGen/SelectionDAG/TargetLowering.cpp Tue Apr 28 04:39:55 2015
@@ -96,18 +96,19 @@ TargetLowering::makeLibCall(SelectionDAG
   for (unsigned i = 0; i != NumOps; ++i) {
     Entry.Node = Ops[i];
     Entry.Ty = Entry.Node.getValueType().getTypeForEVT(*DAG.getContext());
-    Entry.isSExt = isSigned;
-    Entry.isZExt = !isSigned;
+    Entry.isSExt = shouldSignExtendTypeInLibCall(Ops[i].getValueType(), isSigned);
+    Entry.isZExt = !shouldSignExtendTypeInLibCall(Ops[i].getValueType(), isSigned);
     Args.push_back(Entry);
   }
   SDValue Callee = DAG.getExternalSymbol(getLibcallName(LC), getPointerTy());
 
   Type *RetTy = RetVT.getTypeForEVT(*DAG.getContext());
   TargetLowering::CallLoweringInfo CLI(DAG);
+  bool signExtend = shouldSignExtendTypeInLibCall(RetVT, isSigned);
   CLI.setDebugLoc(dl).setChain(DAG.getEntryNode())
     .setCallee(getLibcallCallingConv(LC), RetTy, Callee, std::move(Args), 0)
     .setNoReturn(doesNotReturn).setDiscardResult(!isReturnValueUsed)
-    .setSExtResult(isSigned).setZExtResult(!isSigned);
+    .setSExtResult(signExtend).setZExtResult(!signExtend);
   return LowerCallTo(CLI);
 }
 

Modified: llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.cpp?rev=235973&r1=235972&r2=235973&view=diff
==============================================================================
--- llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.cpp (original)
+++ llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.cpp Tue Apr 28 04:39:55 2015
@@ -3059,6 +3059,15 @@ MipsTargetLowering::CanLowerReturn(Calli
   return CCInfo.CheckReturn(Outs, RetCC_Mips);
 }
 
+bool
+MipsTargetLowering::shouldSignExtendTypeInLibCall(EVT Type, bool IsSigned) const {
+  if (Subtarget.hasMips3() && Subtarget.abiUsesSoftFloat()) {
+    if (Type == MVT::i32)
+      return true;
+  }
+  return IsSigned;
+}
+
 SDValue
 MipsTargetLowering::LowerReturn(SDValue Chain,
                                 CallingConv::ID CallConv, bool IsVarArg,

Modified: llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.h?rev=235973&r1=235972&r2=235973&view=diff
==============================================================================
--- llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.h (original)
+++ llvm/branches/release_36/lib/Target/Mips/MipsISelLowering.h Tue Apr 28 04:39:55 2015
@@ -472,6 +472,8 @@ namespace llvm {
                         const SmallVectorImpl<SDValue> &OutVals,
                         SDLoc dl, SelectionDAG &DAG) const override;
 
+    bool shouldSignExtendTypeInLibCall(EVT Type, bool IsSigned) const override;
+
     // Inline asm support
     ConstraintType
       getConstraintType(const std::string &Constraint) const override;

Modified: llvm/branches/release_36/test/CodeGen/Mips/mips64-f128.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/test/CodeGen/Mips/mips64-f128.ll?rev=235973&r1=235972&r2=235973&view=diff
==============================================================================
--- llvm/branches/release_36/test/CodeGen/Mips/mips64-f128.ll (original)
+++ llvm/branches/release_36/test/CodeGen/Mips/mips64-f128.ll Tue Apr 28 04:39:55 2015
@@ -545,7 +545,7 @@ entry:
 
 ; ALL-LABEL: load_LD_float:
 ; ALL: ld   $[[R0:[0-9]+]], %got_disp(gf1)
-; ALL: lwu  $4, 0($[[R0]])
+; ALL: lw   $4, 0($[[R0]])
 ; ALL: ld   $25, %call16(__extendsftf2)
 ; ALL: jalr $25
 

Added: llvm/branches/release_36/test/CodeGen/Mips/mips64signextendsesf.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_36/test/CodeGen/Mips/mips64signextendsesf.ll?rev=235973&view=auto
==============================================================================
--- llvm/branches/release_36/test/CodeGen/Mips/mips64signextendsesf.ll (added)
+++ llvm/branches/release_36/test/CodeGen/Mips/mips64signextendsesf.ll Tue Apr 28 04:39:55 2015
@@ -0,0 +1,214 @@
+; RUN: llc -march=mips64 -mcpu=mips64r2 -soft-float -O2 < %s | FileCheck %s
+
+define void @foosf() #0 {
+entry:
+  %in = alloca float, align 4
+  %out = alloca float, align 4
+  store volatile float 0xBFD59E1380000000, float* %in, align 4
+  %in.0.in.0. = load volatile float, float* %in, align 4
+  %rintf = tail call float @rintf(float %in.0.in.0.) #1
+  store volatile float %rintf, float* %out, align 4
+  ret void
+
+; CHECK-LABEL:      foosf
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @rintf(float)
+
+define float @foosf1(float* nocapture readonly %a) #0 {
+entry:
+  %0 = load float, float* %a, align 4
+  %call = tail call float @roundf(float %0) #2
+  ret float %call
+
+; CHECK-LABEL:      foosf1
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @roundf(float) #1
+
+define float @foosf2(float* nocapture readonly %a) #0 {
+entry:
+  %0 = load float, float* %a, align 4
+  %call = tail call float @truncf(float %0) #2
+  ret float %call
+
+; CHECK-LABEL:      foosf2
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @truncf(float) #1
+
+define float @foosf3(float* nocapture readonly %a) #0 {
+entry:
+  %0 = load float, float* %a, align 4
+  %call = tail call float @floorf(float %0) #2
+  ret float %call
+
+; CHECK-LABEL:      foosf3
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @floorf(float) #1
+
+define float @foosf4(float* nocapture readonly %a) #0 {
+entry:
+  %0 = load float, float* %a, align 4
+  %call = tail call float @nearbyintf(float %0) #2
+  ret float %call
+
+; CHECK-LABEL:      foosf4
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @nearbyintf(float) #1
+
+define float @foosf5(float* nocapture readonly %a) #0 {
+entry:
+  %0 = load float, float* %a, align 4
+  %mul = fmul float %0, undef
+  ret float %mul
+
+; CHECK-LABEL:      foosf5
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+define float @foosf6(float* nocapture readonly %a) #0 {
+entry:
+  %0 = load float, float* %a, align 4
+  %sub = fsub float %0, undef
+  ret float %sub
+
+; CHECK-LABEL:      foosf6
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+define float @foosf7(float* nocapture readonly %a) #0 {
+entry:
+  %0 = load float, float* %a, align 4
+  %add = fadd float %0, undef
+  ret float %add
+
+; CHECK-LABEL:      foosf7
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+define float @foosf8(float* nocapture readonly %a) #0 {
+entry:
+  %b = alloca float, align 4
+  %b.0.b.0. = load volatile float, float* %b, align 4
+  %0 = load float, float* %a, align 4
+  %div = fdiv float %b.0.b.0., %0
+  ret float %div
+
+; CHECK-LABEL:      foosf8
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+define float @foosf9() #0 {
+entry:
+  %b = alloca float, align 4
+  %b.0.b.0. = load volatile float, float* %b, align 4
+  %conv = fpext float %b.0.b.0. to double
+  %b.0.b.0.3 = load volatile float, float* %b, align 4
+  %conv1 = fpext float %b.0.b.0.3 to double
+  %call = tail call double @pow(double %conv, double %conv1) #1
+  %conv2 = fptrunc double %call to float
+  ret float %conv2
+
+; CHECK-LABEL:      foosf9
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare double @pow(double, double) #0
+
+define float @foosf10() #0 {
+entry:
+  %a = alloca float, align 4
+  %a.0.a.0. = load volatile float, float* %a, align 4
+  %conv = fpext float %a.0.a.0. to double
+  %call = tail call double @sin(double %conv) #1
+  %conv1 = fptrunc double %call to float
+  ret float %conv1
+
+; CHECK-LABEL:      foosf10
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare double @sin(double) #0
+
+define float @foosf11() #0 {
+entry:
+  %b = alloca float, align 4
+  %b.0.b.0. = load volatile float, float* %b, align 4
+  %call = tail call float @ceilf(float %b.0.b.0.) #2
+  ret float %call
+
+; CHECK-LABEL:      foosf11
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @ceilf(float) #1
+
+define float @foosf12() #0 {
+entry:
+  %b = alloca float, align 4
+  %a = alloca float, align 4
+  %b.0.b.0. = load volatile float, float* %b, align 4
+  %a.0.a.0. = load volatile float, float* %a, align 4
+  %call = tail call float @fmaxf(float %b.0.b.0., float %a.0.a.0.) #2
+  ret float %call
+
+; CHECK-LABEL:      foosf12
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @fmaxf(float, float) #1
+
+define float @foosf13() #0 {
+entry:
+  %b = alloca float, align 4
+  %a = alloca float, align 4
+  %b.0.b.0. = load volatile float, float* %b, align 4
+  %a.0.a.0. = load volatile float, float* %a, align 4
+  %call = tail call float @fminf(float %b.0.b.0., float %a.0.a.0.) #2
+  ret float %call
+
+; CHECK-LABEL:      foosf13
+; CHECK-NOT:        dsll
+; CHECK-NOT:        dsrl
+; CHECK-NOT:        lwu
+}
+
+declare float @fminf(float, float) #1
+
+
+attributes #0 = { nounwind "use-soft-float"="true" }
+attributes #1 = { nounwind readnone "use-soft-float"="true" }
\ No newline at end of file





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