4 Commits

Author	SHA1	Message	Date
Eli Friedman	7e58d0ded0	Revert "[arm][darwin] Don't generate libcalls for wide shifts on Darwin" ... This reverts commit 2ba016cd5c. This is causing a failure on the clang-cmake-armv7-full bot, and there are outstanding review comments.	2020-06-08 16:37:29 -07:00
Alex Lorenz	2ba016cd5c	[arm][darwin] Don't generate libcalls for wide shifts on Darwin ... Similar to ceb801612a. Darwin doesn't always use compiler-rt, and so we can't assume that these functions are available on arm.	2020-06-05 15:41:23 -07:00
Hans Wennborg	decd021fac	Don't generate libcalls for wide shift on Windows ARM (PR42711) ... The previous patch (cff90f07cb) didn't cover ARM.	2020-02-25 11:54:07 +01:00
Sjoerd Meijer	f7cc34cae8	[SelectionDAG] Codesize: don't expand SHIFT to SHIFT_PARTS ... And instead just generate a libcall. My motivating example on ARM was a simple: shl i64 %A, %B for which the code bloat is quite significant. For other targets that also accept __int128/i128 such as AArch64 and X86, it is also beneficial for these cases to generate a libcall when optimising for minsize. On these 64-bit targets, the 64-bits shifts are of course unaffected because the SHIFT/SHIFT_PARTS lowering operation action is not set to custom/expand. Differential Revision: https://reviews.llvm.org/D57386 llvm-svn: 352736	2019-01-31 08:07:30 +00:00