Mercurial > hg > graal-jvmci-8
comparison src/cpu/x86/vm/interpreter_x86_64.cpp @ 6084:6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
Summary: use x87 instructions to implement exp() and pow() in interpreter/c1/c2.
Reviewed-by: kvn, never, twisti
| author | roland |
|---|---|
| date | Tue, 15 May 2012 10:10:23 +0200 |
| parents | 3d2ab563047a |
| children | 1d7922586cf6 |
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| 6057:8f972594effc | 6084:6759698e3140 |
|---|---|
| 269 __ flog(); | 269 __ flog(); |
| 270 break; | 270 break; |
| 271 case Interpreter::java_lang_math_log10: | 271 case Interpreter::java_lang_math_log10: |
| 272 __ flog10(); | 272 __ flog10(); |
| 273 break; | 273 break; |
| 274 case Interpreter::java_lang_math_pow: | |
| 275 __ fld_d(Address(rsp, 3*wordSize)); // second argument (one | |
| 276 // empty stack slot) | |
| 277 __ pow_with_fallback(0); | |
| 278 break; | |
| 279 case Interpreter::java_lang_math_exp: | |
| 280 __ exp_with_fallback(0); | |
| 281 break; | |
| 274 default : | 282 default : |
| 275 ShouldNotReachHere(); | 283 ShouldNotReachHere(); |
| 276 } | 284 } |
| 277 | 285 |
| 278 // return double result in xmm0 for interpreter and compilers. | 286 // return double result in xmm0 for interpreter and compilers. |