Subzero, MIPS32: Intrinsic calls for ABS.fmt and SQRT.fmt

src/IceTargetLoweringMIPS32.cpp

Index: src/IceTargetLoweringMIPS32.cpp
diff --git a/src/IceTargetLoweringMIPS32.cpp b/src/IceTargetLoweringMIPS32.cpp
index 7bdf723d3796b4da898c12e1f0a54380a7fbff89..a6046cc8beed2d420c6d3ac095f19485a1b7f7c4 100644
--- a/src/IceTargetLoweringMIPS32.cpp
+++ b/src/IceTargetLoweringMIPS32.cpp
@@ -2173,6 +2173,8 @@ void TargetMIPS32::lowerInsertElement(const InstInsertElement *Instr) {
 }
 
 void TargetMIPS32::lowerIntrinsicCall(const InstIntrinsicCall *Instr) {
+  Variable *Dest = Instr->getDest();
+  Type DestTy = (Dest != nullptr) ? Dest->getType() : IceType_void;

[Jim Stichnoth, 2016/09/09 17:12:41]

I would do it more like this:

  const Type DestTy = (Dest == nullptr) ? IceType_void : Dest->getType();

[obucinac, 2016/09/09 17:39:40]

Done.

   switch (Instr->getIntrinsicInfo().ID) {
   case Intrinsics::AtomicCmpxchg: {
     UnimplementedLoweringError(this, Instr);
@@ -2219,7 +2221,15 @@ void TargetMIPS32::lowerIntrinsicCall(const InstIntrinsicCall *Instr) {
     return;
   }
   case Intrinsics::Fabs: {
-    UnimplementedLoweringError(this, Instr);
+    if (isScalarFloatingType(DestTy)) {
+      Variable *T = makeReg(DestTy);
+      if (DestTy == IceType_f32) {
+        _abs_s(T, legalizeToReg(Instr->getArg(0)));
+      } else {
+        _abs_d(T, legalizeToReg(Instr->getArg(0)));
+      }
+      _mov(Dest, T);
+    }
     return;
   }
   case Intrinsics::Longjmp: {
@@ -2279,7 +2289,15 @@ void TargetMIPS32::lowerIntrinsicCall(const InstIntrinsicCall *Instr) {
     return;
   }
   case Intrinsics::Sqrt: {
-    UnimplementedLoweringError(this, Instr);
+    if (isScalarFloatingType(DestTy)) {
+      Variable *T = makeReg(DestTy);
+      if (DestTy == IceType_f32) {
+        _sqrt_s(T, legalizeToReg(Instr->getArg(0)));
+      } else {
+        _sqrt_d(T, legalizeToReg(Instr->getArg(0)));
+      }
+      _mov(Dest, T);
+    }
     return;
   }
   case Intrinsics::Stacksave: {