Revert "[ptr-compr] Temporarily disable 31 bit Smis on 64-bit architectures"

isheludko · Commit Bot · commit 7788f1ea8aae · 2019-11-14T22:04:29.000Z
This reverts commit 64c09f6. Reason for revert: We already support up to max int32 sized TypedArrays regardless of the smi size, so the chromium:1009439 issue should no longer be a blocker. Original change's description: > [ptr-compr] Temporarily disable 31 bit Smis on 64-bit architectures > > The reason is to unblock M79 blocked by chromium:1009439 while full > solution is not ready yet. > > This CL will be reverted after the M79 branch point. > > Bug: v8:9767, chromium:1009439 > Change-Id: I5302d86fe953ecd94d9a4bba0d29c807b7b9d703 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1862554 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#64286} Bug: v8:9767, chromium:1009439 Change-Id: I92c43c8b27feb4f99e948bca03551e3e0316f2b5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1916692 Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#64971}
diff --git a/BUILD.gn b/BUILD.gn
@@ -104,7 +104,7 @@ declare_args() {
 
   # Enable pointer compression (sets -dV8_COMPRESS_POINTERS).
   v8_enable_pointer_compression = ""
-  v8_enable_31bit_smis_on_64bit_arch = false
+  v8_enable_31bit_smis_on_64bit_arch = true
 
   # Sets -dOBJECT_PRINT.
   v8_enable_object_print = ""
