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| author | Ilya Tocar <ilya.tocar@intel.com> | 2018-04-23 14:11:40 -0500 |
|---|---|---|
| committer | Ilya Tocar <ilya.tocar@intel.com> | 2018-04-24 16:20:41 +0000 |
| commit | fb017c60bc60f8df771ac2a9119ec55ea915929c (patch) | |
| tree | 144f5794c308620ef7f736acbf655572fbbb1e3e /src/cmd/trace/annotations.go | |
| parent | cd037bce09ec1aecd40d9c91c23d09f5b60549f4 (diff) | |
| download | go-fb017c60bc60f8df771ac2a9119ec55ea915929c.tar.xz | |
cmd/compile/internal/ssa: fix endless compile loop on AMD64
We currently rewrite
(TESTQ (MOVQconst [c] x)) into (TESTQconst [c] x)
and (TESTQconst [-1] x) into (TESTQ x x)
if x is a (MOVQconst [-1]) we will be stuck in the endless rewrite loop.
Don't perform the rewrite in such cases.
Fixes #25006
Change-Id: I77f561ba2605fc104f1e5d5c57f32e9d67a2c000
Reviewed-on: https://go-review.googlesource.com/108879
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/cmd/trace/annotations.go')
0 files changed, 0 insertions, 0 deletions