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cmd/compile: ppc64le working, not optimized enough

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This time with the cherry-pick from the proper patch of
the old CL.

Stack size increased.
Corrected NaN-comparison glitches.
Marked g register as clobbered by calls.
Fixed shared libraries.

live_ssa.go still disabled because of differences.
Presumably turning on more optimization will fix
both the stack size and the live_ssa.go glitches.

Enhanced debugging output for shared libs test.

Rebased onto master.

Updates #16010.

Change-Id: I40864faf1ef32c118fb141b7ef8e854498e6b2c4
Reviewed-on: https://go-review.googlesource.com/27159
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
David Chase 2016-08-15 13:51:00 -07:00
parent dea6dab40c
commit 5b9ff11c3d
17 changed files with 121 additions and 128 deletions
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2
src/runtime/stack.go
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@ -90,7 +90,7 @@ const (
// The stack guard is a pointer this many bytes above the
// bottom of the stack.
_StackGuard = 720*sys.StackGuardMultiplier + _StackSystem
_StackGuard = 880*sys.StackGuardMultiplier + _StackSystem
// After a stack split check the SP is allowed to be this
// many bytes below the stack guard. This saves an instruction