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[dev.ssa] cmd/compile: first unoptimized cut at adding FP support

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Added F32 and F64 load, store, and addition.
Added F32 and F64 multiply.
Added F32 and F64 subtraction and division.
Added X15 to "clobber" for FP sub/div
Added FP constants
Added separate FP test in gc/testdata

Change-Id: Ifa60dbad948a40011b478d9605862c4b0cc9134c
Reviewed-on: https://go-review.googlesource.com/13612
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
David Chase 2015-08-12 16:38:11 -04:00
parent 270e2152c4
commit 997a9f32b0
10 changed files with 1443 additions and 77 deletions
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8
src/cmd/compile/internal/ssa/rewrite.go
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@ -76,6 +76,14 @@ func applyRewrite(f *Func, rb func(*Block) bool, rv func(*Value, *Config) bool)
// Common functions called from rewriting rules
func is64BitFloat(t Type) bool {
return t.Size() == 8 && t.IsFloat()
}
func is32BitFloat(t Type) bool {
return t.Size() == 4 && t.IsFloat()
}
func is64BitInt(t Type) bool {
return t.Size() == 8 && t.IsInteger()
}