| commit | 7502ed3b90eeb4d8f1f9bd781df3517f41ea912c | [log] [tgz] |
|---|---|---|
| author | Keith Randall <khr@google.com> | Tue Jan 08 13:46:49 2019 -0800 |
| committer | Keith Randall <khr@golang.org> | Mon Jan 14 22:41:33 2019 +0000 |
| tree | f02337be543b5f76ca3e6badfe7236c9a73357b8 | |
| parent | 70931c087b7ceb660aa969382b8c273efba63426 [diff] |
cmd/compile: when merging instructions, prefer line number of faulting insn Normally this happens when combining a sign extension and a load. We want the resulting combo-instruction to get the line number of the load, not the line number of the sign extension. For each rule, compute where we should get its line number by finding a value on the match side that can fault. Use that line number for all the new values created on the right-hand side. Fixes #27201 Change-Id: I19b3c6f468fff1a3c0bfbce2d6581828557064a3 Reviewed-on: https://go-review.googlesource.com/c/156937 Reviewed-by: David Chase <drchase@google.com>
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