diff options
Diffstat (limited to 'gcc/config/ia64/ia64.c')
| -rw-r--r-- | gcc/config/ia64/ia64.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index b51cc7a9408..5eed72144ef 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -3325,10 +3325,11 @@ ia64_function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode, cum->fp_regs = fp_regs; } - /* Integral and aggregates go in general registers. If we have run out of - FR registers, then FP values must also go in general registers. This can - happen when we have a SFmode HFA. */ - else if (! FLOAT_MODE_P (mode) || cum->fp_regs == MAX_ARGUMENT_SLOTS) + /* Integral and aggregates go in general registers. So do TFmode FP values. + If we have run out of FR registers, then other FP values must also go in + general registers. This can happen when we have a SFmode HFA. */ + else if (mode == TFmode || mode == TCmode + || (! FLOAT_MODE_P (mode) || cum->fp_regs == MAX_ARGUMENT_SLOTS)) cum->int_regs = cum->words; /* If there is a prototype, then FP values go in a FR register when @@ -3351,6 +3352,31 @@ ia64_function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode, } } +/* Arguments with alignment larger than 8 bytes start at the next even + boundary. On ILP32 HPUX, TFmode arguments start on next even boundary + even though their normal alignment is 8 bytes. See ia64_function_arg. */ + +int +ia64_function_arg_boundary (enum machine_mode mode, tree type) +{ + + if (mode == TFmode && TARGET_HPUX && TARGET_ILP32) + return PARM_BOUNDARY * 2; + + if (type) + { + if (TYPE_ALIGN (type) > PARM_BOUNDARY) + return PARM_BOUNDARY * 2; + else + return PARM_BOUNDARY; + } + + if (GET_MODE_BITSIZE (mode) > PARM_BOUNDARY) + return PARM_BOUNDARY * 2; + else + return PARM_BOUNDARY; +} + /* Variable sized types are passed by reference. */ /* ??? At present this is a GCC extension to the IA-64 ABI. */ |