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4 Commits

Author SHA1 Message Date
Simon Pilgrim 42bf2dd629 [TTI] Add generic cost model for smul/umul overflow intrinsics 
Based off smul/umul fixed costs and the implementation in TargetLowering::expandMULO.

llvm-svn: 354784
 2019-02-25 13:30:23 +00:00
Simon Pilgrim 47ca8606ba [TTI] Add generic SADDO/SSUBO costs 
Added x86 scalar sadd_with_overflow/ssub_with_overflow costs.

llvm-svn: 352045
 2019-01-24 13:36:45 +00:00
Simon Pilgrim 2d1964b90f [TTI] Add generic UADDO/USUBO costs 
Added x86 scalar uadd_with_overflow/usub_with_overflow costs.

Differential Revision: https://reviews.llvm.org/D56907

llvm-svn: 352043
 2019-01-24 12:10:20 +00:00
Simon Pilgrim f87226eb70 [IR] Match intrinsic parameter by scalar/vectorwidth 
This patch replaces the existing LLVMVectorSameWidth matcher with LLVMScalarOrSameVectorWidth.

The matching args must be either scalars or vectors with the same number of elements, but in either case the scalar/element type can differ, specified by LLVMScalarOrSameVectorWidth.

I've updated the _overflow intrinsics to demonstrate this - allowing it to return a i1 or <N x i1> overflow result, matching the scalar/vectorwidth of the other (add/sub/mul) result type.

The masked load/store/gather/scatter intrinsics have also been updated to use this, although as we specify the reference type to be llvm_anyvector_ty we guarantee the mask will be <N x i1> so no change in behaviour

Differential Revision: https://reviews.llvm.org/D57090

llvm-svn: 351957
 2019-01-23 16:00:22 +00:00