[dev.ssa] cmd/compile: 386 port now works

GOARCH=386 SSATEST=1 ./all.bash passes

Caveat: still needs changes to test/ files to use *_ssa.go versions.  I
won't check those changes in with this CL because the builders will
complain as they don't have SSATEST=1.

Mostly minor fixes.

Implement float <-> uint32 in assembly.  It seems the simplest option
for now.

GO386=387 does not work.  That's why I can't make SSA the default for
386 yet.

Change-Id: Ic4d4402104d32bcfb1fd612f5bb6539f9acb8ae0
Reviewed-on: https://go-review.googlesource.com/25119
Reviewed-by: Cherry Zhang <cherryyz@google.com>
10 files changed
tree: aadba58e14e8f67308207520aade597369e96ad4
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
README.md

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