diff options
Diffstat (limited to 'gcc/config/arc/arc.cc')
| -rw-r--r-- | gcc/config/arc/arc.cc | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/config/arc/arc.cc b/gcc/config/arc/arc.cc index 22eb2e9..b47935a 100644 --- a/gcc/config/arc/arc.cc +++ b/gcc/config/arc/arc.cc @@ -68,6 +68,8 @@ along with GCC; see the file COPYING3. If not see #include "alias.h" #include "opts.h" #include "hw-doloop.h" +#include "targhooks.h" +#include "case-cfn-macros.h" /* Which cpu we're compiling for (ARC600, ARC601, ARC700). */ static char arc_cpu_name[10] = ""; @@ -11808,6 +11810,37 @@ arc_insn_cost (rtx_insn *insn, bool speed) return cost; } +static unsigned +arc_libm_function_max_error (unsigned cfn, machine_mode mode, + bool boundary_p) +{ +#ifdef OPTION_GLIBC + bool glibc_p = OPTION_GLIBC; +#else + bool glibc_p = false; +#endif + if (glibc_p) + { + int rnd = flag_rounding_math ? 4 : 0; + switch (cfn) + { + CASE_CFN_SIN: + CASE_CFN_SIN_FN: + if (!boundary_p && mode == DFmode) + return 7 + rnd; + break; + CASE_CFN_COS: + CASE_CFN_COS_FN: + if (!boundary_p && mode == DFmode) + return 4 + rnd; + default: + break; + } + return glibc_linux_libm_function_max_error (cfn, mode, boundary_p); + } + return default_libm_function_max_error (cfn, mode, boundary_p); +} + #undef TARGET_USE_ANCHORS_FOR_SYMBOL_P #define TARGET_USE_ANCHORS_FOR_SYMBOL_P arc_use_anchors_for_symbol_p @@ -11832,6 +11865,9 @@ arc_insn_cost (rtx_insn *insn, bool speed) #undef TARGET_INSN_COST #define TARGET_INSN_COST arc_insn_cost +#undef TARGET_LIBM_FUNCTION_MAX_ERROR +#define TARGET_LIBM_FUNCTION_MAX_ERROR arc_libm_function_max_error + struct gcc_target targetm = TARGET_INITIALIZER; #include "gt-arc.h" |