AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

[wasm] Make stack growing cheap to call

Browse Source 
The method to grow the capacity for the value stack is rarely called.
Make it preserve most registers. This makes callers slimmer and faster.

R=dlehmann@chromium.org

Bug: v8:13565
Change-Id: If4bb8cbd7a61852af1d07b83d0881110c5e91528
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4136714
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Daniel Lehmann <dlehmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85285}
This commit is contained in:
Clemens Backes 2023-01-12 12:38:15 +01:00 committed by V8 LUCI CQ
parent d7d5049cfa
commit 249d11e8ab
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/wasm/function-body-decoder-impl.h
View File

@ -1261,7 +1261,7 @@ class FastZoneVector {
}
private:
V8_NOINLINE void Grow(int slots_needed, Zone* zone) {
V8_NOINLINE V8_PRESERVE_MOST void Grow(int slots_needed, Zone* zone) {
size_t new_capacity = std::max(
size_t{8}, base::bits::RoundUpToPowerOfTwo(size() + slots_needed));
CHECK_GE(kMaxUInt32, new_capacity);