diff options
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index ccf9ace..4406f1b 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -5170,11 +5170,14 @@ rs6000_spe_function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode, are passed and returned in a pair of GPRs for ABI compatibility. */ if (TARGET_E500_DOUBLE && (mode == DFmode || mode == DCmode)) { + int n_words = rs6000_arg_size (mode, type); + /* Doubles go in an odd/even register pair (r5/r6, etc). */ - gregno += (1 - gregno) & 1; + if (mode == DFmode) + gregno += (1 - gregno) & 1; - /* We do not split between registers and stack. */ - if (gregno + 1 > GP_ARG_MAX_REG) + /* Multi-reg args are not split between registers and stack. */ + if (gregno + n_words - 1 > GP_ARG_MAX_REG) return NULL_RTX; return spe_build_register_parallel (mode, gregno); |