Files
clang-p2996/llvm/lib
Tomas Matheson fc712eb7aa [AArch64] Fix Copy Elemination for negative values
Redundant Copy Elimination was eliminating a MOVi32imm -1 when it
determined that the value of the destination register is already -1.
However, it didn't take into account that the MOVi32imm zeroes the upper
32 bits (which are FFFFFFFF) and therefore cannot be eliminated.

Reviewed By: paulwalker-arm

Differential Revision: https://reviews.llvm.org/D93100
2020-12-18 13:30:46 +00:00
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