This reverts commit b05f5b90a12098660a4fc16da0b4d421ddfe14e2. There are thread sanitizer buildbot failures in simple_stack.c. I think that's because this ended up affecting the handling of volatile accesses to allocas. Reverting for now.
This reverts commit b05f5b90a12098660a4fc16da0b4d421ddfe14e2. There are thread sanitizer buildbot failures in simple_stack.c. I think that's because this ended up affecting the handling of volatile accesses to allocas. Reverting for now.