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| author | Chung-Ju Wu <jasonwucj@gmail.com> | 2014-09-03 10:19:39 +0000 |
|---|---|---|
| committer | Chung-Ju Wu <jasonwucj@gcc.gnu.org> | 2014-09-03 10:19:39 +0000 |
| commit | d40f3c40304c9086d7ff2c5239f58de8bc0c2218 (patch) | |
| tree | 34b531900948ad949ba6299b368d5f6ea517b9c0 | |
| parent | 650fc46935f19fe1e935fa62891689cb1375d8b6 (diff) | |
| download | gcc-d40f3c40304c9086d7ff2c5239f58de8bc0c2218.zip gcc-d40f3c40304c9086d7ff2c5239f58de8bc0c2218.tar.gz gcc-d40f3c40304c9086d7ff2c5239f58de8bc0c2218.tar.bz2 | |
[NDS32] No need to take padding into consideration in Andes ABI2 because we can...
[NDS32] No need to take padding into consideration in Andes ABI2 because
we can pass arguments in registers for variadic function.
-- By default GCC uses must_pass_in_stack_var_size_or_pad for TARGET_MUST_PASS_IN_STACK.
For Andes ABI2, the data layout in memory will be incorrect when calling variadic function
under big-endian configuration.
* config/nds32/nds32.c (nds32_must_pass_in_stack): New implementation
for TARGET_MUST_PASS_IN_STACK.
From-SVN: r214869
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/nds32/nds32.c | 16 |
2 files changed, 21 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2ea7792..cfec7b4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2014-09-03 Chung-Ju Wu <jasonwucj@gmail.com> + * config/nds32/nds32.c (nds32_must_pass_in_stack): New implementation + for TARGET_MUST_PASS_IN_STACK. + +2014-09-03 Chung-Ju Wu <jasonwucj@gmail.com> + * config/nds32/nds32.c (nds32_arg_partial_bytes): New implementation for TARGET_ARG_PARTIAL_BYTES. diff --git a/gcc/config/nds32/nds32.c b/gcc/config/nds32/nds32.c index fdd4fd4..062e803 100644 --- a/gcc/config/nds32/nds32.c +++ b/gcc/config/nds32/nds32.c @@ -1352,6 +1352,19 @@ nds32_function_arg (cumulative_args_t ca, enum machine_mode mode, return NULL_RTX; } +static bool +nds32_must_pass_in_stack (enum machine_mode mode, const_tree type) +{ + /* Return true if a type must be passed in memory. + If it is NOT using hard float abi, small aggregates can be + passed in a register even we are calling a variadic function. + So there is no need to take padding into consideration. */ + if (TARGET_HARD_FLOAT) + return must_pass_in_stack_var_size_or_pad (mode, type); + else + return must_pass_in_stack_var_size (mode, type); +} + static int nds32_arg_partial_bytes (cumulative_args_t ca, enum machine_mode mode, tree type, bool named ATTRIBUTE_UNUSED) @@ -3498,6 +3511,9 @@ nds32_target_alignment (rtx label) #undef TARGET_FUNCTION_ARG #define TARGET_FUNCTION_ARG nds32_function_arg +#undef TARGET_MUST_PASS_IN_STACK +#define TARGET_MUST_PASS_IN_STACK nds32_must_pass_in_stack + #undef TARGET_ARG_PARTIAL_BYTES #define TARGET_ARG_PARTIAL_BYTES nds32_arg_partial_bytes |