JDK-6873777 : FPU control word optimization still performed with SSE
Type:Bug
Component:hotspot
Sub-Component:compiler
Affected Version:hs17
Priority:P4
Status:Resolved
Resolution:Fixed
OS:solaris_9
CPU:x86
Submitted:2009-08-19
Updated:2010-04-02
Resolved:2009-09-16
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While looking at generated code for another reason, I noticed that C2 tries to do the 24 fpu optimization even when SSE is being used for floating point. This creates at least a little overhead from the extra fldcw calls and is certainly useless.