Well instead of attaching the ChangeLog, I attached the patch without
ChangeLog.

Here is the ChangeLog entry for the patch:

[gcc]
2017-03-24  Michael Meissner  <meiss...@linux.vnet.ibm.com>

        PR target/78543
        * config/rs6000/rs6000.md (BSWAP): New mode iterator for modes
        with hardware byte swap load/store intstructions.
        (bswaphi2_extenddi): Combine bswap HImode and SImode with zero
        extend to DImode to one insn.
        (bswap<mode>2_extenddi): Likewise.
        (bswapsi2_extenddi): Likewise.
        (bswaphi2_extendsi): Likewise.
        (bswaphi2): Combine bswap HImode and SImode into one insn.
        Separate memory insns from swapping register.
        (bswapsi2): Likewise.
        (bswap<mode>2): Likewise.
        (bswaphi2_internal): Delete, no longer used.
        (bswapsi2_internal): Likewise.
        (bswap<mode>2_load): Split bswap HImode/SImode into separate load,
        store, and gpr<-gpr swap insns.
        (bswap<mode>2_store): Likewise.
        (bswaphi2_reg): Register only splitter, combine with the splitter.
        (bswaphi2 splitter): Likewise.
        (bswapsi2_reg): Likewise.
        (bswapsi2 splitter): Likewise.
        (bswapdi2): If we have the LDBRX and STDBRX instructions, split
        the insns into load, store, and register/register insns.
        (bswapdi2_ldbrx): Likewise.
        (bswapdi2_load): Likewise.
        (bswapdi2_store): Likewise.
        (bswapdi2_reg): Likewise.

[gcc/testsuite]
2017-03-24  Michael Meissner  <meiss...@linux.vnet.ibm.com>

        PR target/78543
        * gcc.target/powerpc/pr78543.c: New test.

-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meiss...@linux.vnet.ibm.com, phone: +1 (978) 899-4797

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