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Hi, This patch had been submitted for a previous gcc release quite some time ago but I missed the deadline last time. The patch implemented hand-tuned 64-bit multiplication run-time __aeabi_lmul. On ARM and THUMB-2, this is done using a very short, 5-instruction routine. On THUMB-1, this is done using the ARM version via interworking or a slower, hand-optimized version, depending on whether the interworking is supported or not. This is tested on arm-unknown-linux-gnueabi in qemu with not new regression. -Doug 2010-10-22 Doug Kwan <dougkwan@google.com> * config/arm/lib1funcs.asm (muldi3): Implement muldi3 in hand-written assembly. * config/arm/t-strongarm-elf (LIB1ASMFUNCS): Add _muldi3. * config/arm/t-vxworks: Ditto. * config/arm/t-pe: Ditto. * config/arm/t-arm-elf: Ditto. * config/arm/t-linux: Ditto. * config/arm/t-symbian: Ditto. * config/arm/t-wince-pe: Ditto.
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