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cmd/compile: use soft-float routines for soft-float targets

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Updates #18162 (mostly fixes)

Change-Id: I35bcb8a688bdaa432adb0ddbb73a2f7adda47b9e
Reviewed-on: https://go-review.googlesource.com/37958
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Vladimir Stefanovic 2017-11-10 18:08:48 +01:00 • committed by Brad Fitzpatrick
parent f0f62fcc46
commit 6be1c09e19
11 changed files with 271 additions and 41 deletions
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3
src/cmd/compile/internal/ssa/compile.go
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@ -344,6 +344,7 @@ var passes = [...]pass{
{name: "prove", fn: prove},
{name: "loopbce", fn: loopbce},
{name: "decompose builtin", fn: decomposeBuiltIn, required: true},
{name: "softfloat", fn: softfloat, required: true},
{name: "late opt", fn: opt, required: true}, // TODO: split required rules and optimizing rules
{name: "generic deadcode", fn: deadcode},
{name: "check bce", fn: checkbce},
@ -413,6 +414,8 @@ var passOrder = [...]constraint{
{"generic deadcode", "check bce"},
// don't run optimization pass until we've decomposed builtin objects
{"decompose builtin", "late opt"},
// decompose builtin is the last pass that may introduce new float ops, so run softfloat after it
{"decompose builtin", "softfloat"},
// don't layout blocks until critical edges have been removed
{"critical", "layout"},
// regalloc requires the removal of all critical edges