diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 09c7f133e42..773745e5930 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -89,6 +89,8 @@ #define min(A,B) ((A) < (B) ? (A) : (B)) #define max(A,B) ((A) > (B) ? (A) : (B)) +static pad_direction rs6000_function_arg_padding (machine_mode, const_tree); + /* Structure used to define the rs6000 stack */ typedef struct rs6000_stack { int reload_completed; /* stack info won't change from here on */ @@ -1794,6 +1796,8 @@ static const struct attribute_spec rs6000_attribute_table[] = #define TARGET_FUNCTION_ARG_ADVANCE rs6000_function_arg_advance #undef TARGET_FUNCTION_ARG #define TARGET_FUNCTION_ARG rs6000_function_arg +#undef TARGET_FUNCTION_ARG_PADDING +#define TARGET_FUNCTION_ARG_PADDING rs6000_function_arg_padding #undef TARGET_FUNCTION_ARG_BOUNDARY #define TARGET_FUNCTION_ARG_BOUNDARY rs6000_function_arg_boundary @@ -11247,7 +11251,8 @@ rs6000_return_in_msb (const_tree valtype) return (DEFAULT_ABI == ABI_ELFv2 && BYTES_BIG_ENDIAN && AGGREGATE_TYPE_P (valtype) - && FUNCTION_ARG_PADDING (TYPE_MODE (valtype), valtype) == upward); + && (rs6000_function_arg_padding (TYPE_MODE (valtype), valtype) + == PAD_UPWARD)); } #ifdef HAVE_AS_GNU_ATTRIBUTE @@ -11464,17 +11469,13 @@ abi_v4_pass_in_fpr (machine_mode mode) return false; } -/* If defined, a C expression which determines whether, and in which - direction, to pad out an argument with extra space. The value - should be of type `enum direction': either `upward' to pad above - the argument, `downward' to pad below, or `none' to inhibit - padding. +/* Implement TARGET_FUNCTION_ARG_PADDING. For the AIX ABI structs are always stored left shifted in their argument slot. */ -enum direction -function_arg_padding (machine_mode mode, const_tree type) +static pad_direction +rs6000_function_arg_padding (machine_mode mode, const_tree type) { #ifndef AGGREGATE_PADDING_FIXED #define AGGREGATE_PADDING_FIXED 0 @@ -11486,7 +11487,7 @@ function_arg_padding (machine_mode mode, const_tree type) if (!AGGREGATE_PADDING_FIXED) { /* GCC used to pass structures of the same size as integer types as - if they were in fact integers, ignoring FUNCTION_ARG_PADDING. + if they were in fact integers, ignoring TARGET_FUNCTION_ARG_PADDING. i.e. Structures of size 1 or 2 (or 4 when TARGET_64BIT) were passed padded downward, except that -mstrict-align further muddied the water in that multi-component structures of 2 and 4 @@ -11507,19 +11508,19 @@ function_arg_padding (machine_mode mode, const_tree type) size = GET_MODE_SIZE (mode); if (size == 1 || size == 2 || size == 4) - return downward; + return PAD_DOWNWARD; } - return upward; + return PAD_UPWARD; } if (AGGREGATES_PAD_UPWARD_ALWAYS) { if (type != 0 && AGGREGATE_TYPE_P (type)) - return upward; + return PAD_UPWARD; } /* Fall back to the default. */ - return DEFAULT_FUNCTION_ARG_PADDING (mode, type); + return default_function_arg_padding (mode, type); } /* If defined, a C expression that gives the alignment boundary, in bits, |