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Author SHA1 Message Date
Zi Xuan Wu a02a3feecf [PowerPC] Fix assert from machine verify pass that atomic pseudo expanding causes mismatched register class 
For atomic value operand which less than 4 bytes need to be masked. 
And the related operation to calculate the newvalue can be done in 32 bit gprc. 
So just use gprc for mask and value calculation.

Differential Revision: https://reviews.llvm.org/D56077

llvm-svn: 350113
 2018-12-28 02:12:55 +00:00
Hal Finkel 5728200f33 [PowerPC] Implement lowering for atomicrmw min/max/umin/umax 
Implement lowering for atomicrmw min/max/umin/umax. Fixes PR28818.

llvm-svn: 279933
 2016-08-28 16:17:58 +00:00