Rebase saigo

Add an assertion to check that we don't use the relax-all flag in
Chromium.

Bug: 40210191
Change-Id: I8b5300b3c57410de154cfad2c35ef044aa355af0
Reviewed-on: https://chromium-review.googlesource.com/c/native_client/src/native_client/+/5676504
Reviewed-by: Derek Schuff <dschuff@chromium.org>
Auto-Submit: Fabian Sommer <fabiansommer@chromium.org>
Commit-Queue: Derek Schuff <dschuff@chromium.org>
diff --git a/pnacl/COMPONENT_REVISIONS b/pnacl/COMPONENT_REVISIONS
index 0bd3989..179409c 100644
--- a/pnacl/COMPONENT_REVISIONS
+++ b/pnacl/COMPONENT_REVISIONS
@@ -51,4 +51,4 @@
 #
 # Three lines avoid merge conflicts.
 #
-llvm_saigo=915e8378f75c109d5ff7c7953e7422b388c944f0
+llvm_saigo=bbf59f217dd605296b44dbb75a686feeec12e795