Remove support for the special 'fast' value for fpmath accuracy for the moment.
llvm-svn: 154850
diff --git a/llvm/lib/VMCore/Instructions.cpp b/llvm/lib/VMCore/Instructions.cpp
index 185cd05..6c5db32 100644
--- a/llvm/lib/VMCore/Instructions.cpp
+++ b/llvm/lib/VMCore/Instructions.cpp
@@ -2008,35 +2008,14 @@
/// getFPAccuracy - Get the maximum error permitted by this operation in ULPs.
/// An accuracy of 0.0 means that the operation should be performed with the
-/// default precision. A huge value is returned if the accuracy is 'fast'.
+/// default precision.
float FPMathOperator::getFPAccuracy() const {
const MDNode *MD =
cast<Instruction>(this)->getMetadata(LLVMContext::MD_fpmath);
if (!MD)
return 0.0;
- Value *Op = MD->getOperand(0);
- if (const ConstantFP *Accuracy = dyn_cast<ConstantFP>(Op))
- return Accuracy->getValueAPF().convertToFloat();
- // If it's not a floating point number then it must be 'fast'.
- assert(isa<MDString>(Op) && cast<MDString>(Op)->getString() == "fast" &&
- "Expected the 'fast' keyword!");
- return HUGE_VALF;
-}
-
-/// isFastFPAccuracy - Return true if the accuracy is 'fast'. This says that
-/// speed is more important than accuracy.
-bool FPMathOperator::isFastFPAccuracy() const {
- const MDNode *MD =
- cast<Instruction>(this)->getMetadata(LLVMContext::MD_fpmath);
- if (!MD)
- return false;
- Value *Op = MD->getOperand(0);
- if (isa<ConstantFP>(Op))
- return false;
- // If it's not a floating point number then it must be 'fast'.
- assert(isa<MDString>(Op) && cast<MDString>(Op)->getString() == "fast" &&
- "Expected the 'fast' keyword!");
- return true;
+ ConstantFP *Accuracy = cast<ConstantFP>(MD->getOperand(0));
+ return Accuracy->getValueAPF().convertToFloat();
}
diff --git a/llvm/lib/VMCore/Verifier.cpp b/llvm/lib/VMCore/Verifier.cpp
index 2576766..47baef3 100644
--- a/llvm/lib/VMCore/Verifier.cpp
+++ b/llvm/lib/VMCore/Verifier.cpp
@@ -1662,8 +1662,6 @@
APFloat Accuracy = CFP0->getValueAPF();
Assert1(Accuracy.isNormal() && !Accuracy.isNegative(),
"fpmath accuracy not a positive number!", &I);
- } else if (MDString *S0 = dyn_cast_or_null<MDString>(Op0)) {
- Assert1(S0->getString() == "fast", "wrong fpmath accuracy keyword!", &I);
} else {
Assert1(false, "invalid fpmath accuracy!", &I);
}