3 Commits

Author	SHA1	Message	Date
Juergen Ributzka	6f653ee44c	Revert "[AArch64][FastISel] Add more truncation tests." and "[AArch64][FastISel] Always use an AND instruction when truncating to non-legal types." ... This reverts commit r243198 and 243304. Turns out this wasn't the correct fix for this problem. It works only within FastISel, but fails when the truncate is selected by SDAG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244287 91177308-0d34-0410-b5e6-96231b3b80d8	2015-08-06 22:13:48 +00:00
Juergen Ributzka	e928ceb9e6	[AArch64][FastISel] Always use an AND instruction when truncating to non-legal types. ... When truncating to non-legal types (such as i16, i8 and i1) always use an AND instruction to mask out the upper bits. This was only done when the source type was an i64, but not when the source type was an i32. This commit fixes this and adds the missing i32 truncate tests. This fixes rdar://problem/21990703. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243198 91177308-0d34-0410-b5e6-96231b3b80d8	2015-07-25 02:16:53 +00:00
Pete Cooper	d887b7ef2f	[AArch64] Fix sext/zext folding in address arithmetic. ... We were accidentally folding a sign/zero extend in to address arithmetic in a different BB when the extend wasn't available there. Cross BB fast-isel isn't safe, so restrict this to only when the extend is in the same BB as the use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236764 91177308-0d34-0410-b5e6-96231b3b80d8	2015-05-07 19:21:36 +00:00