[PATCH] D38942: [DAG] Promote ADDCARRY / SUBCARRY
Roger Ferrer Ibanez via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Dec 12 01:43:18 PST 2017
rogfer01 added inline comments.
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Comment at: test/CodeGen/ARM/addsubcarry-promotion.ll:15
+; ARM: movw r1, #65535
+; ARM: sxth r2, r2
+; ARM: adc r0, r2, #0
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This is made redundant by the `tst` below (as it will mask the higher 16 bits) but I presume this has to be fixed elsewhere.
https://reviews.llvm.org/D38942
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