From 0d3f939ba7956c3583a7488cc9a0a85f96556ff6 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sat, 15 Sep 2012 17:02:05 +0000
Subject: Pull in r163967 from upstream llvm trunk:
X86: Emitting x87 fsin/fcos for sinf/cosf is not safe without unsafe
fp math.
This should make clang emit calls to libm for sinf/cosf by default.
MFC after: 1 week
---
contrib/llvm/lib/Target/X86/X86ISelLowering.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp b/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp
index c77355f..4af12e4 100644
--- a/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -643,7 +643,9 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand);
if (!TM.Options.UnsafeFPMath) {
+ setOperationAction(ISD::FSIN , MVT::f32 , Expand);
setOperationAction(ISD::FSIN , MVT::f64 , Expand);
+ setOperationAction(ISD::FCOS , MVT::f32 , Expand);
setOperationAction(ISD::FCOS , MVT::f64 , Expand);
}
addLegalFPImmediate(APFloat(+0.0)); // FLD0
--
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