Eliminate inttype phi with inttoptr/ptrtoint.
This version fixed a bug in finding the matching
phi -- the order of the incoming blocks may be
different (triggered in self build on Windows).
A new test case is added.
llvm-svn: 315272
This appears to be miscompiling Clang, as shown on two Windows bootstrap
bots:
http://lab.llvm.org:8011/builders/clang-x86-windows-msvc2015/builds/7611http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/6870
Nothing else is in the blame list. Both emit errors on this valid code
in the Windows ucrt headers:
C:\...\ucrt\malloc.h:95:32: error: invalid operands to binary expression ('char *' and 'int')
_Ptr = (char*)_Ptr + _ALLOCA_S_MARKER_SIZE;
~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~
I am attempting to reproduce this now.
This reverts r315044
llvm-svn: 315108
And follow-up r314585.
Leads to segfaults. I'll forward reproduction instructions to the patch
author.
Also, for a recommit, still add the original patch description.
Otherwise, it becomes really tedious to find out what a patch actually
does. The fact that it is a recommit with a fix is somewhat secondary.
llvm-svn: 314622
This patch will eliminate redundant intptr/ptrtoint that pessimizes
analyses such as SCEV, AA and will make optimization passes such
as auto-vectorization more powerful.
Differential revision: http://reviews.llvm.org/D37832
llvm-svn: 314561
Xinliang David Li