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| author | Jakub Jelinek <jakub@redhat.com> | 2009-07-11 11:23:32 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2009-07-11 11:23:32 +0200 |
| commit | dd67163fa487933aff300fd75228b6889c9c6f6e (patch) | |
| tree | b700b07fc721a69f0f74991e6005fdca45a0e888 /gcc/function.c | |
| parent | e9edda2372898f4d180d084fdd27438c832cb893 (diff) | |
| download | gcc-dd67163fa487933aff300fd75228b6889c9c6f6e.zip gcc-dd67163fa487933aff300fd75228b6889c9c6f6e.tar.gz gcc-dd67163fa487933aff300fd75228b6889c9c6f6e.tar.bz2 | |
re PR target/40668 (64-bit sparc miscompiles memcpy of argument inside switch)
PR target/40668
* function.c (assign_parm_setup_stack): Adjust
MEM_OFFSET (data->stack_parm) if promoted_mode is different
from nominal_mode on big endian.
* gcc.c-torture/execute/pr40668.c: New test.
From-SVN: r149511
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/gcc/function.c b/gcc/function.c index 93244db..258f594 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -2976,9 +2976,17 @@ assign_parm_setup_stack (struct assign_parm_data_all *all, tree parm, TYPE_UNSIGNED (TREE_TYPE (parm))); if (data->stack_parm) - /* ??? This may need a big-endian conversion on sparc64. */ - data->stack_parm - = adjust_address (data->stack_parm, data->nominal_mode, 0); + { + int offset = subreg_lowpart_offset (data->nominal_mode, + GET_MODE (data->stack_parm)); + /* ??? This may need a big-endian conversion on sparc64. */ + data->stack_parm + = adjust_address (data->stack_parm, data->nominal_mode, 0); + if (offset && MEM_OFFSET (data->stack_parm)) + set_mem_offset (data->stack_parm, + plus_constant (MEM_OFFSET (data->stack_parm), + offset)); + } } if (data->entry_parm != data->stack_parm) |