diff options
Diffstat (limited to 'gcc/config/mips/mips.c')
| -rw-r--r-- | gcc/config/mips/mips.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 4957a150078..d7a0749b4ee 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -16912,6 +16912,21 @@ mips_option_override (void) warning (0, "the %qs architecture does not support branch-likely" " instructions", mips_arch_info->name); + /* If the user hasn't specified -mimadd or -mno-imadd set + MASK_IMADD based on the target architecture and tuning + flags. */ + if ((target_flags_explicit & MASK_IMADD) == 0) + { + if (ISA_HAS_MADD_MSUB && + (mips_tune_info->tune_flags & PTF_AVOID_IMADD) == 0) + target_flags |= MASK_IMADD; + else + target_flags &= ~MASK_IMADD; + } + else if (TARGET_IMADD && !ISA_HAS_MADD_MSUB) + warning (0, "the %qs architecture does not support madd or msub" + " instructions", mips_arch_info->name); + /* The effect of -mabicalls isn't defined for the EABI. */ if (mips_abi == ABI_EABI && TARGET_ABICALLS) { |