Re: [PATCH][AArch64] Handle compare of zero_extract form of TST-immediate in rtx costs

On Mon, Jan 11, 2016 at 04:41:22PM +, Kyrill Tkachov wrote: > Hi all, > > The test gcc.target/aarch64/tst_3.c fails for an explicit -mcpu=cortex-a53 > because we don't handle the recent compare with zero_extract pattern properly > in rtx costs, so we end up recursing into its operands and end

[PATCH][AArch64] Handle compare of zero_extract form of TST-immediate in rtx costs

Hi all, The test gcc.target/aarch64/tst_3.c fails for an explicit -mcpu=cortex-a53 because we don't handle the recent compare with zero_extract pattern properly in rtx costs, so we end up recursing into its operands and end up rejecting the combination for some CPUs, generating an AND-immediat