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* Fix mapping of @llvm.arm.ssat/usat intrinsics to ssat/usat instructionsAsiri Rathnayake2015-10-191-0/+10
The mapping of these two intrinsics in ARMInstrInfo.td had a small omission which lead to their operands not being validated/transformed before being lowered into usat and ssat instructions. This can cause incorrect instructions to be emitted. I've also added tests for the remaining two saturating arithmatic intrinsics @llvm.arm.qadd and @llvm.arm.qsub as they are missing codegen tests. llvm-svn: 250697
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