| commit | c3a871fde17a33605600b1206904daa7f7d04bb3 | [log] [tgz] |
|---|---|---|
| author | Giovanni Bajo <rasky@develer.com> | Sun Sep 22 01:26:50 2019 +0200 |
| committer | Giovanni Bajo <rasky@develer.com> | Mon Oct 14 21:27:08 2019 +0000 |
| tree | 416d5bbed6e21fae686c7aa4da081d5b743121df | |
| parent | 50f1157760a3357f34520fd74c030dee0c44c8fd [diff] |
cmd/compile: in poset, make constant handling more flexible Currently, constants in posets, in addition to being stored in a DAG, are also stored as SSA values in a slice. This allows to quickly go through all stored constants, but it's not easy to search for a specific constant. Following CLs will benefit from being able to quickly find a constants by value in the poset, so change the constants structure to a map. Since we're at it, don't store it as *ssa.Value: poset always uses dense uint32 indices when referring a node, so just switch to it. Using a map also forces us to have a single node per constant value: this is a good thing in the first place, so this CL also make sure we never create two nodes for the same constant value. Change-Id: I099814578af35f935ebf14bc4767d607021f5f8b Reviewed-on: https://go-review.googlesource.com/c/go/+/196781 Run-TryBot: Giovanni Bajo <rasky@develer.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
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