diff options
| author | Keith Randall <khr@golang.org> | 2022-10-09 19:06:23 -0700 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2023-02-16 00:16:13 +0000 |
| commit | 44d22e75dd9a0cbffbb04c9ce6d6bf9030634cc1 (patch) | |
| tree | 125e8b26022e3004e987febed3658d085bf34d9f /src/cmd/compile/internal/ssa/func.go | |
| parent | 6b5b7b3240ed635f58d25d292a345450c0937979 (diff) | |
| download | go-44d22e75dd9a0cbffbb04c9ce6d6bf9030634cc1.tar.xz | |
cmd/compile: detect write barrier completion differently
Instead of keeping track of in which blocks write barriers complete,
introduce a new op that marks the exact memory state where the
write barrier completes.
For future use. This allows us to move some of the write barrier code
to between the start of the merging block and the WBend marker.
Change-Id: If3809b260292667d91bf0ee18d7b4d0eb1e929f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/447777
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/cmd/compile/internal/ssa/func.go')
| -rw-r--r-- | src/cmd/compile/internal/ssa/func.go | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/src/cmd/compile/internal/ssa/func.go b/src/cmd/compile/internal/ssa/func.go index b10911aa92..ba3d1e589e 100644 --- a/src/cmd/compile/internal/ssa/func.go +++ b/src/cmd/compile/internal/ssa/func.go @@ -64,12 +64,6 @@ type Func struct { // AuxCall describing parameters and results for this function. OwnAux *AuxCall - // WBLoads is a list of Blocks that branch on the write - // barrier flag. Safe-points are disabled from the OpLoad that - // reads the write-barrier flag until the control flow rejoins - // below the two successors of this block. - WBLoads []*Block - freeValues *Value // free Values linked by argstorage[0]. All other fields except ID are 0/nil. freeBlocks *Block // free Blocks linked by succstorage[0].b. All other fields except ID are 0/nil. |