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2024-01-03Update copyright years.Jakub Jelinek1-1/+1
2023-01-16Update copyright years.Jakub Jelinek1-1/+1
2022-01-03Update copyright years.Jakub Jelinek1-1/+1
2021-01-04Update copyright years.Jakub Jelinek1-1/+1
2020-11-18MSP430: Add 64-bit hardware multiply supportJozef Lawrynowicz1-0/+5
Hardware multipliers that support widening 32-bit multiplication can be used to perform a 64-bit * 64-bit multiplication more efficiently than a software implementation. The following equation is used to perform 64-bit multiplication for devices with "32bit" or "f5series" hardware multiply versions: 64bit_result = (low32_op0 * lop32_op1) + ((low32_op0 * high32_op1) << 32) + ((high32_op0 * low32_op1) << 32) libgcc/ChangeLog: * config/msp430/lib2hw_mul.S (mult64_hw): New. (if MUL_32): Use mult64_hw for __muldi3. (if MUL_F5): Use mult64_hw for __muldi3. * config/msp430/lib2mul.c (__muldi3): New. * config/msp430/t-msp430 (LIB2FUNCS_EXCLUDE): Define.
2020-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r279813
2019-12-11MSP430: Add -fno-exceptions multilibJozef Lawrynowicz1-0/+6
ChangeLog: 2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config-ml.in (msp430-*-*): Support --disable-no-exceptions configure flag. gcc/ChangeLog: 2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config/msp430/msp430.h (STARTFILE_SPEC) [!fexceptions]: Use crtbegin_no_eh.o if building for the C language. [fno-exceptions]: Use crtbegin_no_eh.o if building for any language except C. (ENDFILE_SPEC) [!fexceptions]: Use crtend_no_eh.o if building for the C language. [fno-exceptions]: Use crtend_no_eh.o if building for any language except C. * config/msp430/t-msp430: Add -fno-exceptions multilib. * doc/install.texi: Document --disable-no-exceptions multilib configure option. * doc/sourcebuild.texi: Document exceptions_enabled effective target. gcc/testsuite/ChangeLog: 2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com> * lib/gcc-dg.exp: Add dg-prune messages for when exception handling is disabled. * lib/target-supports.exp (check_effective_target_exceptions_enabled): New. libgcc/ChangeLog: 2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config.host: Add crt{begin,end}_no_eh.o to "extra_parts". * config.host (msp430*-*-elf): Add crt{begin,end}_no_eh.o to "extra_parts". From-SVN: r279246
2019-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r267494
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2017-01-17t-msp430 (LIB2ADD): Remove mpy.cJoe Seymour1-2/+4
libgcc/ * config/msp430/t-msp430 (LIB2ADD): Remove mpy.c (mpy.o): New rule. (libmul_none.a): Add mpy.o gcc/testsuite/ * gcc.target/msp430/mul_f5_muldef.c: New test. From-SVN: r244564
2017-01-13t-msp430 (libmul_none.a, [...]): Filter archived prerequisites.Joe Seymour1-4/+4
2017-01-13 Joe Seymour <joe.s@somniumtech.com> * config/msp430/t-msp430 (libmul_none.a, libmul_16.a, libmul_32.a, libmul_f5.a): Filter archived prerequisites. From-SVN: r244455
2017-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r243994
2016-01-15t-msp430 (lib2_mul_none.o): Only use the first dependency as the source file ↵Nick Clifton1-5/+5
to be compiled. * config/msp430/t-msp430 (lib2_mul_none.o): Only use the first dependency as the source file to be compiled. (lib2_mul_16bit.o, lib2hw_mul_16.o, lib2hw_mul_32.o) (lib2hw_mul_f5.o): Likewise. From-SVN: r232402
2016-01-04Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r232055
2015-12-04gcc * config.gcc (extra_gcc_objs): Define for MSP430.Nick Clifton1-1/+27
* common/config/msp430/msp430-common.c (msp430_handle_option): Pass both -mmcu and -mcpu on to the back end if they are both defined. * config/msp430/msp430.c (hwmult_name): New function. (msp430_option_override): If an unrecognised MCU name is detected only warn if the user has not provided suitable -mhwmult and -mcpu options. Use msp430_warn_mcu to control warning messages. Generate warnings about conflicts between -mmcu and -mcpu and -mhwmult options. If neither -mcpu nor -mmcu have been specified but -mhwmult= f5series has the select the 430X isa. (msp430_no_hwmult): If -mmcu has not been specified and msp430_hwmult_type is AUTO then return true. * config/msp430/msp430.h (EXTRA_SPEC_FUNCTIONS): Define. (LIB_SPEC): Add hardware multiply library selection. * config/msp430/t-msp430: Delete hardware multiply multilibs. Add rule to build driver-msp430.o * config/msp430/driver-msp430.c: New file. * config/msp430/msp430.opt (warn-mcu): New option. * doc/invoke.texi: Update description of -mhwmult=auto. Document -mwarn-mcu option. tests * gcc.target/msp430/msp_abi_div_funcs.c: New test. * gcc.target/msp430/mul_main.h: New test support file. * gcc.target/msp430/mul_none.c: New test. * gcc.target/msp430/mul_16bit.c: New test. * gcc.target/msp430/mul_32bit.c: New test. * gcc.target/msp430/mul_f5.c: New test. libgcc * config/msp430/mpy.c (__mulhi3): Use a faster algorithm. Allow for the second argument being negative. * config.host (extra_parts): Define for MSP430. Create separate libraries for each of the hardware multiply formats. * config/msp430/lib2hw_mul.S: Build only the multiply routines that are needed. * config/msp430/lib2mul.c: Likewise. * config/msp430/t-msp430 (LIB2ADD): Remove lib2hw_mul.S. Add rules to build hardware multiply libraries. * config/msp430/lib2divSI.c: (__mspabi_divlu): Alias for __mspabi_divul function. (__mspabi_divllu): New stub function. From-SVN: r231286
2015-01-05Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r219188
2014-05-22t-msp430 (HOST_LIBGCC2_CFLAGS): Add -mhwmult=none.Nick Clifton1-1/+1
* config/msp430/t-msp430 (HOST_LIBGCC2_CFLAGS): Add -mhwmult=none. From-SVN: r210811
2014-03-06t-msp430 (LIB2ADD): Add lib2hw_mul.SNick Clifton1-0/+1
* config/msp430/t-msp430 (LIB2ADD): Add lib2hw_mul.S * config/msp430/lib2hw_mul.S: New: Hardware multiply routines. From-SVN: r208374
2014-01-02Update copyright years in libgcc/Richard Sandiford1-1/+1
From-SVN: r206295
2013-09-12MAINTAINERS: Add Nick Clifton and DJ Delorie as msp430 maintainers.DJ Delorie1-0/+48
* MAINTAINERS: Add Nick Clifton and DJ Delorie as msp430 maintainers. [gcc] * config/msp430/: New port. * config.gcc (msp430): Added. * doc/invoke.texi: Document MSP430 options. * doc/install.texi: Document msp430-elf * doc/md.texi: Document msp430-elf * doc/contrib.texi: Document msp430-elf [libgcc] * config.host (msp*-*-elf): New. * config/msp430/: New port. [contrib] * config-list.mk: Add msp430-elf. From-SVN: r202535
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