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This patch fixes vec extracts to memory that can arise from code as seen in the testcase added. The patch fixes this by allowing mem operands in the set of mve_vec_extract patterns, which given the only '=r' constraint will lead to the scalar value being written to a register and then stored in memory using scalar store pattern. gcc/ChangeLog: 2020-04-07 Andre Vieira <andre.simoesdiasvieira@arm.com> * config/arm/mve.md (mve_vec_extract*): Allow memory operands in set. gcc/testsuite/ChangeLog: 2020-04-07 Andre Vieira <andre.simoesdiasvieira@arm.com> * gcc.target/arm/mve/intrinsics/mve_vec_extracts_from_memory.c: New test.
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