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cmd/compile: in poset, improve panic strings and comments

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No functional changes.

Change-Id: I6f5e811e141dd09dc5c47ff2d37fae4c640315e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/200862
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Giovanni Bajo 2019-10-13 01:26:22 +02:00
parent c3a871fde1
commit 233f45499b
1 changed files with 4 additions and 3 deletions
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7
src/cmd/compile/internal/ssa/poset.go
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@ -874,7 +874,7 @@ func (po *poset) NonEqual(n1, n2 *Value) bool {
defer po.CheckIntegrity()
}
if n1.ID == n2.ID {
panic("should not call Equal with n1==n2")
panic("should not call NonEqual with n1==n2")
}
if po.isnoneq(n1.ID, n2.ID) {
return true
@ -888,7 +888,8 @@ func (po *poset) NonEqual(n1, n2 *Value) bool {
return false
}
// setOrder records that n1<n2 or n1<=n2 (depending on strict).
// setOrder records that n1<n2 or n1<=n2 (depending on strict). Returns false
// if this is a contradiction.
// Implements SetOrder() and SetOrderOrEqual()
func (po *poset) setOrder(n1, n2 *Value, strict bool) bool {
// If we are trying to record n1<=n2 but we learned that n1!=n2,
@ -1110,7 +1111,7 @@ func (po *poset) SetNonEqual(n1, n2 *Value) bool {
defer po.CheckIntegrity()
}
if n1.ID == n2.ID {
panic("should not call Equal with n1==n2")
panic("should not call SetNonEqual with n1==n2")
}
// See if we already know this