JDK-8263972 : C2: LoadVector/StoreVector type mismatch in MemNode::can_see_stored_value()
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 16,17
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2021-03-22
- Updated: 2022-05-06
- Resolved: 2021-04-27
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
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| JDK 17 |
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17 b20Fixed  |
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Description
This is just a generic synopsis. Please change accordingly. The attached fuzzer test produces a different result for C2 compared to C1/interpreter. It starts to fail after JDK-8223347 and thus seems unrelated to JDK-8261147. To reproduce: $ java -Xint Reduced.java > xint.log $ java -Xcomp -XX:-TieredCompilation -XX:CompileOnly=Reduced Reduced.java > c2.log or $ java -Xint Test.java > xint.log $ java -Xcomp -XX:-TieredCompilation -XX:CompileOnly=Test Test.java > c2.log $ diff xint.log c2.log (of Test.java) 4c4 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8626774667594265033 14c14 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8896789206094624590 24c24 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8896789206094624590 34c34 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8896789206094624590 44c44 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8801448218637635204 54c54 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8711634374960815033 64c64 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8626774667594265033 74c74 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8896789206094624590 84c84 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8801448218637635204 94c94 < i21 i22 lArr = 1,-5,-3636660501855477640 --- > i21 i22 lArr = 1,-5,-8711634374960815033
Comments
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