From 60108e96bbc5432f4fe06ba313e64448e97a0e15 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Thu, 15 Jul 2010 22:07:12 +0000
Subject: Split -enable-finite-only-fp-math to two options:
 -enable-no-nans-fp-math and -enable-no-infs-fp-math. All of the current
 codegen fp math optimizations only care whether the fp arithmetics arguments
 and results can never be NaN.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108465 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/TargetMachine.cpp | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

(limited to 'lib/Target/TargetMachine.cpp')

diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index 47c91df..705b1c0 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -30,7 +30,8 @@ namespace llvm {
   bool NoFramePointerElimNonLeaf;
   bool NoExcessFPPrecision;
   bool UnsafeFPMath;
-  bool FiniteOnlyFPMathOption;
+  bool NoInfsFPMath;
+  bool NoNaNsFPMath;
   bool HonorSignDependentRoundingFPMathOption;
   bool UseSoftFloat;
   FloatABI::ABIType FloatABIType;
@@ -80,9 +81,14 @@ EnableUnsafeFPMath("enable-unsafe-fp-math",
   cl::location(UnsafeFPMath),
   cl::init(false));
 static cl::opt<bool, true>
-EnableFiniteOnlyFPMath("enable-finite-only-fp-math",
-  cl::desc("Enable optimizations that assumes non- NaNs / +-Infs"),
-  cl::location(FiniteOnlyFPMathOption),
+EnableNoInfsFPMath("enable-no-infs-fp-math",
+  cl::desc("Enable FP math optimizations that assume no +-Infs"),
+  cl::location(NoInfsFPMath),
+  cl::init(false));
+static cl::opt<bool, true>
+EnableNoNaNsFPMath("enable-no-nans-fp-math",
+  cl::desc("Enable FP math optimizations that assume no NaNs"),
+  cl::location(NoNaNsFPMath),
   cl::init(false));
 static cl::opt<bool, true>
 EnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math",
@@ -290,12 +296,6 @@ namespace llvm {
   /// result is "less precise" than doing those operations individually.
   bool LessPreciseFPMAD() { return UnsafeFPMath || LessPreciseFPMADOption; }
 
-  /// FiniteOnlyFPMath - This returns true when the -enable-finite-only-fp-math
-  /// option is specified on the command line. If this returns false (default),
-  /// the code generator is not allowed to assume that FP arithmetic arguments
-  /// and results are never NaNs or +-Infs.
-  bool FiniteOnlyFPMath() { return FiniteOnlyFPMathOption; }
-  
   /// HonorSignDependentRoundingFPMath - Return true if the codegen must assume
   /// that the rounding mode of the FPU can change from its default.
   bool HonorSignDependentRoundingFPMath() {
-- 
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