f22cf7131a
The ssa backend is aggressive about placing constants and certain other values in the Entry block. It's implausible that the original line numbers for these constants makes any sort of sense when it appears to a user stepping in a debugger, and they're also not that useful in dumps since entry-block instructions tend to be constants (i.e., unlikely to be the cause of a crash). Therefore, use src.NoXPos for any values that are explicitly inserted into a function's entry block. Passes all tests, including ssa/debug_test.go with both gdb and a fairly recent dlv. Hand-verified that it solves the reported problem; constructed a test that reproduced a problem, and fixed it. Modified test harness to allow injection of slightly more interesting inputs. Fixes #22558. Change-Id: I4476927067846bc4366da7793d2375c111694c55 Reviewed-on: https://go-review.googlesource.com/81215 Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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The Go Programming Language
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