Cherry Zhang 6fbdfe4804 cmd/compile: on PPC64, fold offset into some loads/stores only when offset is 4-aligned ...

On PPC64, MOVWload, MOVDload, and MOVDstore are assembled to a
"DS from" instruction which requiers the offset is a multiple of
4. Only fold offset to such instructions if it is a multiple of 4.

Fixes #36723.

"GOARCH=ppc64 GOOS=linux go build -gcflags=all=-d=ssa/check/on std cmd"
passes now.

Change-Id: I67f2a6ac02f0d33d470f68ff54936c289a4c765b
Reviewed-on: https://go-review.googlesource.com/c/go/+/216379
Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>

2020-01-27 16:13:58 +00:00

630 B

Raw Permalink Blame History

View Raw