cmd/asm: ppc64 RLWNM reg, reg, const, reg encodes incorrectly #42368
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Change https://golang.org/cl/267421 mentions this issue: |
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What version of Go are you using (
go version)?Does this issue reproduce with the latest release?
Yes, fails with 1.15.3
What operating system and processor architecture are you using (
go env)?go envOutputWhat did you do?
Testing assembler changes. The rlwnm instruction was encoded with incorrect opcode, and in newer versions (as noted in hash above) RB is encoded wrong too.
Adding the following tests to ppc64enc.s:
RLWNM R3, R4, $7, R6 // 5c861f7e RLWNMCC R3, R4, $7, R6 // 5c861f7fWhat did you expect to see?
No errors
What did you see instead?
--- FAIL: TestPPC64Encoder (0.01s) endtoend_test.go:228: 02520 (testdata/ppc64enc.s:631) RLWNM R3, R4, $7, R6: have encoding 54861f7e, want 5c861f7e endtoend_test.go:228: 02524 (testdata/ppc64enc.s:632) RLWNMCC R3, R4, $7, R6: have encoding 54861f7f, want 5c861f7fThe text was updated successfully, but these errors were encountered: