| commit | 38cd79889ece342643b56ad6d496ef8931ca9272 | [log] [tgz] |
|---|---|---|
| author | Cherry Zhang <cherryyz@google.com> | Mon Sep 19 07:45:08 2016 -0400 |
| committer | Cherry Zhang <cherryyz@google.com> | Tue Sep 20 13:40:48 2016 +0000 |
| tree | 798540d48b188adac947c3709d6a2a6f8b4d80c6 | |
| parent | f964810025ae58b623798a1944c39c06266fb45d [diff] |
cmd/compile: simplify div/mod on ARM On ARM, DIV, DIVU, MOD, MODU are pseudo instructions that makes runtime calls _div/_udiv/_mod/_umod, which themselves are wrappers of udiv. The udiv function does the real thing. Instead of generating these pseudo instructions, call to udiv directly. This removes one layer of wrappers (which has an awkward way of passing argument), and also allows combining DIV and MOD if both results are needed. Change-Id: I118afc3986db3a1daabb5c1e6e57430888c91817 Reviewed-on: https://go-review.googlesource.com/29390 Reviewed-by: David Chase <drchase@google.com>
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