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| author | Dan Gohman <gohman@apple.com> | 2011-07-01 22:05:19 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2011-07-01 22:05:19 +0000 |
| commit | 71997f303e47343e994fba53814455753eeb7e05 (patch) | |
| tree | ab5eb06761b724574b21464f7e2cf0bb2bbe52a2 /lib/Target/PowerPC/PPCSubtarget.cpp | |
| parent | f1ac465b67d5fc11a0d9cd09b98ceb4ffa75dd97 (diff) | |
Teach IVUsers to stop at non-affine expressions unless they are both
outside the loop and reducible.
This more completely hides them from LSR, which isn't usually able to
do anything meaningful with non-affine expressions anyway, and this
consequently hides them from SCEVExpander, which is acutely unprepared
for non-affine expressions.
Replace test/CodeGen/X86/lsr-nonaffine.ll with a new test that tests
the new behavior.
This works around the bug in PR10117 / rdar://problem/9633149, and is
generally an improvement besides.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134268 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCSubtarget.cpp')
0 files changed, 0 insertions, 0 deletions