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101a0841b6
On Skylake, SImode store cost isn't less than half cost of 128-bit vector store. This patch increases Skylake SImode pseudo register store cost to make it the same as QImode and HImode. gcc/ PR target/91446 * config/i386/x86-tune-costs.h (skylake_cost): Increase SImode pseudo register store cost from 3 to 6 to make it the same as QImode and HImode. gcc/testsuite/ PR target/91446 * gcc.target/i386/pr91446.c: New test. From-SVN: r275905
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