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2023-01-16Update copyright years.Jakub Jelinek15-15/+15
2022-01-03Update copyright years.Jakub Jelinek15-15/+15
2021-01-04Update copyright years.Jakub Jelinek15-15/+15
2020-11-18MSP430: Add 64-bit hardware multiply supportJozef Lawrynowicz3-4/+130
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.
2020-11-15MSP430: Fix inconsistent naming of hwmult libfuncsJozef Lawrynowicz1-6/+6
The naming scheme used by GCC to reference MSP430 hardware multiply library functions is inconsistent. Sometimes the "GCC" names (e.g. mulsi2) are used, other times the "MSPABI" names (e.g. __mspabi_mpyl) are used. Also, sometimes an identifier for the hardware multiply support is appended to the GCC name, when the functions are defined, but this is not required. This patch fixes those issues, so the names used to refer to the hardware multiply library functions follow a consistent pattern. gcc/ChangeLog: * config/msp430/msp430.c (msp430_output_labelref): Don't process mspabi hwmult library function names into GCC-style names. libgcc/ChangeLog: * config/msp430/lib2hw_mul.S: Omit _hw* suffix from GCC names for hwmult library functions. gcc/testsuite/ChangeLog: * gcc.target/msp430/rtx-cost-Os-f5series.c: Adjust test to use new hwmult library function name.
2020-08-26MSP430: Simplify and extend shift instruction patternsJozef Lawrynowicz3-0/+46
The implementation of define_expand and define_insn patterns to handle shifts in the MSP430 backend is inconsistent, resulting in missed opportunities to make best use of the architecture's features. There's now a single define_expand used as the entry point for all valid shifts, and the decision to either use a helper function to perform the shift (often required for the 430 ISA), or fall through to the define_insn patterns can be made from that expander function. Shifts by a constant amount have been grouped into one define_insn for each type of shift, instead of having different define_insn patterns for shifts by different amounts. A new target option "-mmax-inline-shift=" has been added to allow tuning of the number of shift instructions to emit inline, instead of using a library helper function. gcc/ChangeLog: * config/msp430/constraints.md (K): Change unused constraint to constraint to a const_int between 1 and 19. (P): New constraint. * config/msp430/msp430-protos.h (msp430x_logical_shift_right): Remove. (msp430_expand_shift): New. (msp430_output_asm_shift_insns): New. * config/msp430/msp430.c (msp430_rtx_costs): Remove shift costs. (CSH): Remove. (msp430_expand_helper): Remove hard-coded generation of some inline shift insns. (use_helper_for_const_shift): New. (msp430_expand_shift): New. (msp430_output_asm_shift_insns): New. (msp430_print_operand): Add new 'W' operand selector. (msp430x_logical_shift_right): Remove. * config/msp430/msp430.md (HPSI): New define_mode_iterator. (HDI): Likewise. (any_shift): New define_code_iterator. (shift_insn): New define_code_attr. Adjust unnamed insn patterns searched for by combine. (ashlhi3): Remove. (slli_1): Remove. (430x_shift_left): Remove. (slll_1): Remove. (slll_2): Remove. (ashlsi3): Remove. (ashldi3): Remove. (ashrhi3): Remove. (srai_1): Remove. (430x_arithmetic_shift_right): Remove. (srap_1): Remove. (srap_2): Remove. (sral_1): Remove. (sral_2): Remove. (ashrsi3): Remove. (ashrdi3): Remove. (lshrhi3): Remove. (srli_1): Remove. (430x_logical_shift_right): Remove. (srlp_1): Remove. (srll_1): Remove. (srll_2x): Remove. (lshrsi3): Remove. (lshrdi3): Remove. (<shift_insn><mode>3): New define_expand. (<shift_insn>hi3_430): New define_insn. (<shift_insn>si3_const): Likewise. (ashl<mode>3_430x): Likewise. (ashr<mode>3_430x): Likewise. (lshr<mode>3_430x): Likewise. (*bitbranch<mode>4_z): Replace renamed predicate msp430_bitpos with const_0_to_15_operand. * config/msp430/msp430.opt: New option -mmax-inline-shift=. * config/msp430/predicates.md (const_1_to_8_operand): New predicate. (const_0_to_15_operand): Rename msp430_bitpos predicate. (const_1_to_19_operand): New predicate. * doc/invoke.texi: Document -mmax-inline-shift=. libgcc/ChangeLog: * config/msp430/slli.S (__gnu_mspabi_sllp): New. * config/msp430/srai.S (__gnu_mspabi_srap): New. * config/msp430/srli.S (__gnu_mspabi_srlp): New. gcc/testsuite/ChangeLog: * gcc.target/msp430/emulate-srli.c: Fix expected assembler text. * gcc.target/msp430/max-inline-shift-430-no-opt.c: New test. * gcc.target/msp430/max-inline-shift-430.c: New test. * gcc.target/msp430/max-inline-shift-430x.c: New test.
2020-01-01Update copyright years.Jakub Jelinek15-15/+15
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
2019-10-23lib2hw_mul.S: Fix wrong syntax in branch instruction.Jozef Lawrynowicz2-67/+106
2019-10-23 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config/msp430/lib2hw_mul.S: Fix wrong syntax in branch instruction. s/RESULT_LO/RESLO, s/RESULT_HI/RESHI, s/MPY_OP1/MPY, s/MPY_OP1_S/MPYS, s/MAC_OP1/MAC, s/MPY_OP2/OP2, s/MAC_OP2/OP2. Define symbols for 32-bit and f5series hardware multiply register addresses. Replace hard-coded register addresses with symbols. Fix "_mspabi*" typo. Fix whitespace. * config/msp430/lib2mul.c: Add comment. From-SVN: r277340
2019-06-16MSP430: Implement 64-bit shifts in assembly codeJozef Lawrynowicz3-0/+102
gcc/ChangeLog: 2019-06-16 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config/msp430/msp430.c (msp430_expand_helper): Setup arguments which describe how to perform MSPABI compliant 64-bit shift. * config/msp430/msp430.md (ashldi3): New define_expand. (ashrdi3): New define_expand. (lshrdi3): New define_expand. libgcc/ChangeLog: 2019-06-16 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config/msp430/slli.S (__mspabi_sllll): New library function for performing a logical left shift of a 64-bit value. * config/msp430/srai.S (__mspabi_srall): New library function for performing a arithmetic right shift of a 64-bit value. * config/msp430/srll.S (__mspabi_srlll): New library function for performing a logical right shift of a 64-bit value. gcc/testsuite/ChangeLog: 2019-06-16 Jozef Lawrynowicz <jozef.l@mittosystems.com> * gcc.target/msp430/mspabi_sllll.c: New test. * gcc.target/msp430/mspabi_srall.c: New test. * gcc.target/msp430/mspabi_srlll.c: New test. * gcc.c-torture/execute/shiftdi-2.c: New test. From-SVN: r272360
2019-06-06MSP430: Put libgcc shift functions in their own sectionJozef Lawrynowicz3-6/+18
2019-06-06 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config/msp430/slli.S (__mspabi_slli_n): Put function in its own section. (__mspabi_slli): Likewise. (__mspabi_slll_n): Likewise. (__mspabi_slll): Likewise. * config/msp430/srai.S (__mspabi_srai_n): Likewise. (__mspabi_srai): Likewise. (__mspabi_sral_n): Likewise. (__mspabi_sral): Likewise. * config/msp430/srli.S (__mspabi_srli_n): Likewise. (__mspabi_srli): Likewise. (__mspabi_srll_n): Likewise. (__mspabi_srll): Likewise. From-SVN: r271992
2019-01-01Update copyright years.Jakub Jelinek15-15/+15
From-SVN: r267494
2018-01-03Update copyright years.Jakub Jelinek15-15/+15
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 Jelinek15-15/+15
From-SVN: r243994
2016-04-25cmpd.c (__mspabi_cmpf): Add prototype.Nick Clifton6-6/+20
* config/msp430/cmpd.c (__mspabi_cmpf): Add prototype. (__mspabi_cmpd): Likewise. * config/msp430/floathidf.c (__floathidf): Likewise. * config/msp430/floathisf.c (__floathisf): Likewise * config/msp430/floatunhidf.c (__floatunssidf): Likewise. * config/msp430/floatunhisf.c (__floatunshisf): Likewise. * config/msp430/lib2shift.c (__ashlsi3): Take a signed char as the second parameter. (__ashrsi3): Likewise. From-SVN: r235409
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 Jelinek15-15/+15
From-SVN: r232055
2015-12-04gcc * config.gcc (extra_gcc_objs): Define for MSP430.Nick Clifton5-53/+277
* 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
2015-11-19* config/msp430/lib2hw_mul.S: Fix alignment.DJ Delorie1-1/+1
From-SVN: r230633
2015-01-05Update copyright years.Jakub Jelinek15-15/+15
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 Clifton2-0/+227
* 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 Sandiford14-14/+14
From-SVN: r206295
2014-01-02arc-common.c, [...]: Use the standard form for the copyright notice.Richard Sandiford12-19/+12
gcc/ * common/config/arc/arc-common.c, config/arc/arc-modes.def, config/arc/arc-protos.h, config/arc/arc.c, config/arc/arc.h, config/arc/arc.md, config/arc/arc.opt, config/arm/arm_neon_builtins.def, config/arm/crypto.def, config/i386/avx512cdintrin.h, config/i386/avx512erintrin.h, config/i386/avx512fintrin.h, config/i386/avx512pfintrin.h, config/i386/btver2.md, config/i386/shaintrin.h, config/i386/slm.md, config/linux-protos.h, config/linux.c, config/winnt-c.c, diagnostic-color.c, diagnostic-color.h, gimple-ssa-isolate-paths.c, vtable-verify.c, vtable-verify.h: Use the standard form for the copyright notice. gcc/c-family/ * array-notation-common.c, c-cilkplus.c: Use the standard form for the copyright notice. gcc/c/ * c-array-notation.c: Use the standard form for the copyright notice. gcc/cp/ * cp-array-notation.c, cp-cilkplus.c, vtable-class-hierarchy.c: Use the standard form for the copyright notice. gcc/testsuite/ * gcc.target/arc/arc.exp: Use the standard form for the copyright notice. libgcc/ * config/arc/asm.h, config/arc/crtg.S, config/arc/crtgend.S, config/arc/crti.S, config/arc/crtn.S, config/arc/divtab-arc700.c, config/arc/dp-hack.h, config/arc/fp-hack.h, config/arc/ieee-754/adddf3.S, config/arc/ieee-754/addsf3.S, config/arc/ieee-754/arc600-dsp/divdf3.S, config/arc/ieee-754/arc600-dsp/divsf3.S, config/arc/ieee-754/arc600-dsp/muldf3.S, config/arc/ieee-754/arc600-dsp/mulsf3.S, config/arc/ieee-754/arc600-mul64/divdf3.S, config/arc/ieee-754/arc600-mul64/divsf3.S, config/arc/ieee-754/arc600-mul64/muldf3.S, config/arc/ieee-754/arc600-mul64/mulsf3.S, config/arc/ieee-754/arc600/divsf3.S, config/arc/ieee-754/arc600/mulsf3.S, config/arc/ieee-754/divdf3.S, config/arc/ieee-754/divsf3-stdmul.S, config/arc/ieee-754/divsf3.S, config/arc/ieee-754/divtab-arc-df.c, config/arc/ieee-754/divtab-arc-sf.c, config/arc/ieee-754/eqdf2.S, config/arc/ieee-754/eqsf2.S, config/arc/ieee-754/extendsfdf2.S, config/arc/ieee-754/fixdfsi.S, config/arc/ieee-754/fixsfsi.S, config/arc/ieee-754/fixunsdfsi.S, config/arc/ieee-754/floatsidf.S, config/arc/ieee-754/floatsisf.S, config/arc/ieee-754/floatunsidf.S, config/arc/ieee-754/gedf2.S, config/arc/ieee-754/gesf2.S, config/arc/ieee-754/gtdf2.S, config/arc/ieee-754/gtsf2.S, config/arc/ieee-754/muldf3.S, config/arc/ieee-754/mulsf3.S, config/arc/ieee-754/orddf2.S, config/arc/ieee-754/ordsf2.S, config/arc/ieee-754/truncdfsf2.S, config/arc/ieee-754/uneqdf2.S, config/arc/ieee-754/uneqsf2.S, config/arc/initfini.c, config/arc/lib1funcs.S, config/arc/t-arc, config/arc/t-arc-newlib, config/cris/umulsidi3.S, config/msp430/cmpsi2.S, config/msp430/epilogue.S, config/msp430/lib2bitcountHI.c, config/msp430/lib2divHI.c, config/msp430/lib2divQI.c, config/msp430/lib2divSI.c, config/msp430/lib2mul.c, config/msp430/msp430-divmod.h, config/msp430/msp430-mul.h, config/msp430/slli.S, config/msp430/srai.S, config/msp430/srli.S, config/rl78/divmodhi.S, config/rl78/divmodqi.S, config/rl78/divmodsi.S, config/rl78/signbit.S, vtv_end.c, vtv_end_preinit.c, vtv_start.c, vtv_start_preinit.c: Use the standard form for the copyright notice. libgomp/ * hashtab.h: Use the standard form for the copyright notice. libstdc++-v3/ * testsuite/18_support/new_handler.cc, testsuite/18_support/terminate_handler.cc, testsuite/18_support/unexpected_handler.cc: Use the standard form for the copyright notice. From-SVN: r206288
2013-09-12MAINTAINERS: Add Nick Clifton and DJ Delorie as msp430 maintainers.DJ Delorie20-0/+1111
* 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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