commit | 72dc9ab1919e9fac9f3e63a109232cd79a050255 | [log] [tgz] |
---|---|---|
author | Keith Randall <keithr@alum.mit.edu> | Sun Oct 06 23:03:28 2019 -0700 |
committer | Keith Randall <khr@golang.org> | Mon Oct 07 15:16:26 2019 +0000 |
tree | 63cd5f811755011f2dc0c5c5e8401daa8206b90b | |
parent | fc2915fabdda25912058b4e51b385e73e8ed2b4b [diff] |
cmd/compile: reuse dead register before reusing register holding constant For commuting ops, check whether the second argument is dead before checking if the first argument is rematerializeable. Reusing the register holding a dead value is always best. Fixes #33580 Change-Id: I7372cfc03d514e6774d2d9cc727a3e6bf6ce2657 Reviewed-on: https://go-review.googlesource.com/c/go/+/199559 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
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