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| author | Nick Clifton <nickc@redhat.com> | 2010-10-19 10:26:31 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@gcc.gnu.org> | 2010-10-19 10:26:31 +0000 |
| commit | e2f289f3c75abb5716f15cd7d3e0d78b0439f952 (patch) | |
| tree | 759435ed53eb8bc0782ca50e78af2f1dee8ae542 /gcc | |
| parent | 462027293874eb55bf0da3468f5635bc9f550ed3 (diff) | |
| download | gcc-e2f289f3c75abb5716f15cd7d3e0d78b0439f952.zip gcc-e2f289f3c75abb5716f15cd7d3e0d78b0439f952.tar.gz gcc-e2f289f3c75abb5716f15cd7d3e0d78b0439f952.tar.bz2 | |
rx.c (rx_function_value): Small integer types are promotes to SImode.
* config/rx/rx.c (rx_function_value): Small integer types are
promotes to SImode.
(rx_promote_function_mode): New function.
(TARGET_PROMOTE_FUNCTION_MODE): Define.
From-SVN: r165690
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/rx/rx.c | 30 |
2 files changed, 36 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1d6ada9..e124df7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2010-10-19 Nick Clifton <nickc@redhat.com> + * config/rx/rx.c (rx_function_value): Small integer types are + promotes to SImode. + (rx_promote_function_mode): New function. + (TARGET_PROMOTE_FUNCTION_MODE): Define. + +2010-10-19 Nick Clifton <nickc@redhat.com> + * config/mep/mep.c (mep_print_operand): Use targetm.strip_name_encoding. (mep_output_aligned_common): Likewise. diff --git a/gcc/config/rx/rx.c b/gcc/config/rx/rx.c index f087c66..2ce5f58 100644 --- a/gcc/config/rx/rx.c +++ b/gcc/config/rx/rx.c @@ -830,7 +830,32 @@ rx_function_value (const_tree ret_type, const_tree fn_decl_or_type ATTRIBUTE_UNUSED, bool outgoing ATTRIBUTE_UNUSED) { - return gen_rtx_REG (TYPE_MODE (ret_type), FUNC_RETURN_REGNUM); + enum machine_mode mode = TYPE_MODE (ret_type); + + /* RX ABI specifies that small integer types are + promoted to int when returned by a function. */ + if (GET_MODE_SIZE (mode) > 0 && GET_MODE_SIZE (mode) < 4) + return gen_rtx_REG (SImode, FUNC_RETURN_REGNUM); + + return gen_rtx_REG (mode, FUNC_RETURN_REGNUM); +} + +/* TARGET_PROMOTE_FUNCTION_MODE must behave in the same way with + regard to function returns as does TARGET_FUNCTION_VALUE. */ + +static enum machine_mode +rx_promote_function_mode (const_tree type ATTRIBUTE_UNUSED, + enum machine_mode mode, + int * punsignedp, + const_tree funtype ATTRIBUTE_UNUSED, + int for_return) +{ + if (for_return != 1 + || GET_MODE_SIZE (mode) >= 4 + || GET_MODE_SIZE (mode) < 1) + return mode; + + return SImode; } static bool @@ -2825,6 +2850,9 @@ rx_memory_move_cost (enum machine_mode mode, enum reg_class regclass, bool in) #undef TARGET_OPTION_OVERRIDE #define TARGET_OPTION_OVERRIDE rx_option_override +#undef TARGET_PROMOTE_FUNCTION_MODE +#define TARGET_PROMOTE_FUNCTION_MODE rx_promote_function_mode + #undef TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE #define TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE rx_override_options_after_change |