[llvm-commits] CVS: llvm/lib/Target/X86/X86ISelSimple.cpp

[Chris Lattner]

Changes in directory llvm/lib/Target/X86:

X86ISelSimple.cpp updated: 1.314 -> 1.315
---
Log message:

Codegen fabs/fabsf as FABS.  Patch contributed by Morten Ofstad


---
Diffs of the changes:  (+9 -0)

 X86ISelSimple.cpp |    9 +++++++++
 1 files changed, 9 insertions(+)


Index: llvm/lib/Target/X86/X86ISelSimple.cpp
diff -u llvm/lib/Target/X86/X86ISelSimple.cpp:1.314 llvm/lib/Target/X86/X86ISelSimple.cpp:1.315
--- llvm/lib/Target/X86/X86ISelSimple.cpp:1.314	Thu Apr 21 18:38:14 2005
+++ llvm/lib/Target/X86/X86ISelSimple.cpp	Thu Apr 28 16:48:42 2005
@@ -1735,6 +1735,15 @@
     if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID()) {
       visitIntrinsicCall(ID, CI);   // Special intrinsics are not handled here
       return;
+    } else if (F->getName() == "fabs" || F->getName() == "fabsf") {
+      if (CI.getNumOperands() == 2 &&   // Basic sanity checks.
+          CI.getOperand(1)->getType()->isFloatingPoint() &&
+          CI.getType() == CI.getOperand(1)->getType()) {
+        unsigned op1Reg = getReg(CI.getOperand(1));
+        unsigned DestReg = getReg(CI);
+        BuildMI(BB, X86::FABS, 1, DestReg).addReg(op1Reg);
+        return;
+      }
     }
 
     // Emit a CALL instruction with PC-relative displacement.