archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-21 11:34:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

7133857: exp() and pow() should use the x87 ISA on x86

Browse source 
Use x87 instructions to implement exp() and pow() in interpreter/c1/c2.

Reviewed-by: kvn, never, twisti
This commit is contained in:
Roland Westrelin 2012-05-15 10:10:23 +02:00
parent eb4a860bc3
commit b305cf722e
26 changed files with 783 additions and 279 deletions
Download patch file Download diff file Expand all files Collapse all files

8
hotspot/src/cpu/x86/vm/interpreter_x86_64.cpp
View file

@ -271,6 +271,14 @@ address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKin
case Interpreter::java_lang_math_log10:
__ flog10();
break;
case Interpreter::java_lang_math_pow:
__ fld_d(Address(rsp, 3*wordSize)); // second argument (one
// empty stack slot)
__ pow_with_fallback(0);
break;
case Interpreter::java_lang_math_exp:
__ exp_with_fallback(0);
break;
default :
ShouldNotReachHere();
}