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

[Chris Lattner]

Changes in directory llvm/lib/Target/X86:

X86ISelSimple.cpp updated: 1.315 -> 1.316
---
Log message:

Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled.


---
Diffs of the changes:  (+27 -0)

 X86ISelSimple.cpp |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+)


Index: llvm/lib/Target/X86/X86ISelSimple.cpp
diff -u llvm/lib/Target/X86/X86ISelSimple.cpp:1.315 llvm/lib/Target/X86/X86ISelSimple.cpp:1.316
--- llvm/lib/Target/X86/X86ISelSimple.cpp:1.315	Thu Apr 28 16:48:42 2005
+++ llvm/lib/Target/X86/X86ISelSimple.cpp	Fri Apr 29 23:12:40 2005
@@ -26,6 +26,7 @@
 #include "llvm/CodeGen/SSARegMap.h"
 #include "llvm/Target/MRegisterInfo.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetOptions.h"
 #include "llvm/Support/GetElementPtrTypeIterator.h"
 #include "llvm/Support/InstVisitor.h"
 #include "llvm/ADT/Statistic.h"
@@ -1744,6 +1745,25 @@
         BuildMI(BB, X86::FABS, 1, DestReg).addReg(op1Reg);
         return;
       }
+    } else if (F->getName() == "sin" && UnsafeFPMath || F->getName() == "sinf") {
+      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::FSIN, 1, DestReg).addReg(op1Reg);
+        return;
+      }
+    }
+    else if (F->getName() == "cos" && UnsafeFPMath || F->getName() == "cosf") {
+      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::FCOS, 1, DestReg).addReg(op1Reg);
+        return;
+      }
     }
 
     // Emit a CALL instruction with PC-relative displacement.
@@ -1780,6 +1800,7 @@
           case Intrinsic::memcpy:
           case Intrinsic::memset:
           case Intrinsic::isunordered:
+          case Intrinsic::sqrt:
           case Intrinsic::readport:
           case Intrinsic::writeport:
             // We directly implement these intrinsics
@@ -1860,6 +1881,12 @@
     BuildMI(BB, X86::SETPr, 0, TmpReg2);
     return;
 
+  case Intrinsic::sqrt:
+    TmpReg1 = getReg(CI.getOperand(1));
+    TmpReg2 = getReg(CI);
+    BuildMI(BB, X86::FSQRT, 1, TmpReg2).addReg(TmpReg1);
+    return;
+
   case Intrinsic::memcpy: {
     assert(CI.getNumOperands() == 5 && "Illegal llvm.memcpy call!");
     unsigned Align = 1;