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| author | Chung-Ju Wu <jasonwucj@gmail.com> | 2014-09-03 08:57:02 +0000 |
|---|---|---|
| committer | Chung-Ju Wu <jasonwucj@gcc.gnu.org> | 2014-09-03 08:57:02 +0000 |
| commit | 6f3d3f9c7c6db3468b8d0269bbca946df2c48d5f (patch) | |
| tree | 3d780b782ef18d1f3a43d38cf23c58bca8ec5cfb /gcc/final.c | |
| parent | 126b11c6921e3e0b8eb29b60e5bf5b4dd83797d4 (diff) | |
| download | gcc-6f3d3f9c7c6db3468b8d0269bbca946df2c48d5f.zip gcc-6f3d3f9c7c6db3468b8d0269bbca946df2c48d5f.tar.gz gcc-6f3d3f9c7c6db3468b8d0269bbca946df2c48d5f.tar.bz2 | |
[NDS32] Consider varargs situation when creating stack operation assembly code.
-- In fact, we only need to take care of 'push.s' situation,
because we have to push all the nameless arguments into stack.
-- We do not have to use 'pop.s' to restore them back to registers,
because we can just adjust stack pointer to set frame location.
This operation should be done in epilogue expanding.
-- Because 'pop25' instruction also performs return operation, we will
not use v3push/v3pop on isr and vararg functions.
Therefore, their instruction length should be 4 bytes.
* config/nds32/nds32-md-auxiliary.c (nds32_output_stack_push):
Check rtx for varargs implementation.
(nds32_output_stack_pop): Likewise.
* config/nds32/nds32-protos.h: Have a rtx argument for
nds32_output_stack_push and nds32_output_stack_pop.
* config/nds32/nds32.md: Likewise.
From-SVN: r214856
Diffstat (limited to 'gcc/final.c')
0 files changed, 0 insertions, 0 deletions