diff options
| author | Jim Wilson <jimw@sifive.com> | 2019-11-01 20:35:12 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 2019-11-01 13:35:12 -0700 |
| commit | 8dc56a2244cfe35cbdb53e0f586c16f90a2677e4 (patch) | |
| tree | 36b8771939940a546ff3d1b3be2e849fb2c83dd0 | |
| parent | 2df0c2315a21a05838c8015d27678d236f4d0cd4 (diff) | |
| download | gcc-8dc56a2244cfe35cbdb53e0f586c16f90a2677e4.zip gcc-8dc56a2244cfe35cbdb53e0f586c16f90a2677e4.tar.gz gcc-8dc56a2244cfe35cbdb53e0f586c16f90a2677e4.tar.bz2 | |
RISC-V: Build soft-float divide routines for -mno-fdiv.
Using -mno-fdiv gives linker errors unless we build the missing divide
routines in libgcc always. There is at least one university project
designing RISC-V parts without FP divide that wants to use the option.
libgcc/
* config/riscv/t-softfp32 (softfp_extra): Add FP divide routines
From-SVN: r277723
| -rw-r--r-- | libgcc/ChangeLog | 4 | ||||
| -rw-r--r-- | libgcc/config/riscv/t-softfp32 | 17 |
2 files changed, 21 insertions, 0 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 9919994..4a855cb 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,7 @@ +2019-11-01 Jim Wilson <jimw@sifive.com> + + * config/riscv/t-softfp32 (softfp_extra): Add FP divide routines + 2019-10-23 Jozef Lawrynowicz <jozef.l@mittosystems.com> * config/msp430/lib2hw_mul.S: Fix wrong syntax in branch instruction. diff --git a/libgcc/config/riscv/t-softfp32 b/libgcc/config/riscv/t-softfp32 index 1bd51e8..59be1df 100644 --- a/libgcc/config/riscv/t-softfp32 +++ b/libgcc/config/riscv/t-softfp32 @@ -12,7 +12,11 @@ softfp_float_modes := tf softfp_extensions := sftf dftf softfp_truncations := tfsf tfdf +# Enable divide routines to make -mno-fdiv work. +softfp_extras := divsf3 divdf3 + else +# !ABI_DOUBLE softfp_float_modes := df tf softfp_extensions := sfdf sftf dftf @@ -20,7 +24,20 @@ softfp_truncations := dfsf tfsf tfdf ifndef ABI_SINGLE softfp_float_modes += sf +else +# ABI_SINGLE + +# Enable divide routines to make -mno-fdiv work. +softfp_extras := divsf3 + endif endif + +else +# ABI_QUAD + +# Enable divide routines to make -mno-fdiv work. +softfp_extras := divsf3 divdf3 divtf3 + endif |