https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67366
--- Comment #13 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> --- Author: ramana Date: Fri Oct 9 10:53:31 2015 New Revision: 228643 URL: https://gcc.gnu.org/viewcvs?rev=228643&root=gcc&view=rev Log: [Patch PR target/67366 1/2] [ARM] - Add movmisalignhi / si patterns This adds movmisalignhi and movmisalignsi expanders when unaligned access is allowed by the architecture. This allows the mid-end to expand to misaligned loads and stored. Compared code generated for the Linux kernel and it changes code generation for a handful of files all for the better basically by reducing the stack usage. Tested by : 1. armhf bootstrap and regression test - no regressions. 2.. arm-none-eabi cross build and regression test for {-marm/-march=armv7-a/-mfpu=vfpv3-d16/-mfloat-abi=softfp} {-mthumb/-march=armv8-a/-mfpu=crypto-neon-fp-armv8/-mfloat-abi=hard} {-marm/-mcpu=arm7tdmi/-mfloat-abi=soft} {-mthumb/-mcpu=arm7tdmi/-mfloat-abi=soft} Will apply to trunk once 2/2 is approved. regards Ramana 2015-10-09 Ramana Radhakrishnan <ramana.radhakrish...@arm.com> PR target/67366 * config/arm/arm.md (movmisalign<mode>): New. * config/arm/iterators.md (HSI): New. Modified: trunk/gcc/ChangeLog trunk/gcc/config/arm/arm.md trunk/gcc/config/arm/iterators.md
