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cmd/compile: internal compiler error: can't find source for b12->b4: v31 = MOVBload <bool> v14 v1 : DX [1.17 backport] #49129
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This bug is rare but causes a serious miscompilation. |
Change https://golang.org/cl/358118 mentions this issue: |
From reading #49122 I understand that this was a regression in 1.17, so 1.16 doesn't need this backport since it doesn't have the bug (please correct if that's not the case). |
That is correct. |
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…correctly removePred and removeArg do different things. removePred moves the last predecessor to index k, whereas removeArg slides all the args k or greater down by 1 index. Kind of unfortunate different behavior in things named similarly. Fixes #49129 Change-Id: I9ae409bdac744e713f4c121f948e43db6fdc8542 Reviewed-on: https://go-review.googlesource.com/c/go/+/358117 Trust: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> (cherry picked from commit 8dbf3e9) Reviewed-on: https://go-review.googlesource.com/c/go/+/358118 Reviewed-by: Austin Clements <austin@google.com> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Closed by merging 1c05b9b to release-branch.go1.17. |
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@randall77 requested issue #49122 to be considered for backport to the next 1.17 minor release.
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