Hi Michael, On 26 November 2013 17:48, David Holsgrove <david.holsgr...@xilinx.com> wrote: > Hi Michael, > > Please find attached same patch based against latest from gcc master. > > Can this be applied and backported to gcc-4_8-branch when reviewed. > > thanks, > David > > On 15 July 2013 14:49, David Holsgrove <david.holsgr...@xilinx.com> wrote: >> MicroBlaze insn swaph swaps the contents of register rA as two >> halfwords placing result in rD; >> >> (rD)[0:15] <- (rA)[16:31] >> (rD)[16:31] <- (rA)[0:15] >> >> gcc bswaphi2 is intended to reverse the order of the bytes in the >> half integer in rA >> >> (rD)[8:15] <- (rA)[0:7] >> (rD)[7:0] <- (rA)[8:15] >> (rD)[24:31] <- (rA)[16:23] >> (rD)[16:23] <- (rA)[24:31] >> >> Correct the microblaze bswaphi2 insn pattern to be a swapb followed >> by swaph >> >> Changelog entry would be: >> >> 2013-07-15 David Holsgrove <david.holsgr...@xilinx.com> >> >> * gcc/config/microblaze/microblaze.md: Fix bswaphi2 >> >> >> Can this also be backported to the gcc-4_8-branch? >>
Updated patch attached which includes a testcase to check that
bswaphi2 is using a swapb followed by swaph for MicroBlaze.
Updated Changelogs are;
gcc/Changelog
2014-01-22 David Holsgrove <david.holsgr...@xilinx.com>
* gcc/config/microblaze/microblaze.md: Correct bswaphi2 / bswapsi2 insn
testsuite/ChangeLog
2014-01-22 David Holsgrove <david.holsgr...@xilinx.com>
* gcc/testsuite/gcc.target/microblaze/others/bswap16.c: New test.
>> thanks,
>> David
0001-Patch-microblaze-Fix-bswaphi2-implementation.patch
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