| Prepared by: | Chuck Rasbold (rasbold) on Fri Oct 10 09:47:37 PDT 2008 |
|---|---|
| Workspace: | /net/escuintla/export/rasbold/hg/6752257 |
| Compare against: | http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot |
| Summary of changes: | 56 lines changed: 56 ins; 0 del; 0 mod; 24863 unchg |
| Patch of changes: | 6752257.patch |
| Author comments: |
6752257: Use NOT instead of XOR -1 on x86
Summary: add match rule for xor -1 Reviewed-by: Using "not" instead of "xor -1" saves a byte in the instruction on x86. |
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src/cpu/x86/vm/x86_32.ad
34 lines changed: 34 ins; 0 del; 0 mod; 12964 unchg
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src/cpu/x86/vm/x86_64.ad
22 lines changed: 22 ins; 0 del; 0 mod; 11899 unchg
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