JDK-8138702 : StringUTF16.(get|set)Char intrinsic should use scaled operand
- Type: Sub-task
- Component: hotspot
- Sub-Component: compiler
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2015-10-01
- Updated: 2015-10-07
- Resolved: 2015-10-07
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| JDK 9 |
|---|
9Fixed  |
Description
-XX:+StringCharIntrinsics does: 0x00007f7cd51ab90d: shl %edx 0x00007f7cd51ab90f: movzwl 0x10(%r10,%rdx,1),%eax -XX:-StringCharIntrinsics does: ; <lots on Unsafe garbage before> 0x00007f3a5cf8fa13: movzwl 0x10(%r10,%r11,2),%eax The intrinsic could use a complex operand with scale=2.
Comments
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