diff options
| author | pinskia <pinskia@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-02 21:03:37 +0000 |
|---|---|---|
| committer | pinskia <pinskia@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-02 21:03:37 +0000 |
| commit | ea70b59793087198d6ae137fa5e68096ec1c30a3 (patch) | |
| tree | b9f0d6e93903ee4d20168c9841c8cb91e8491689 | |
| parent | e2b2e56e706444249ee0b20d14d54aed8d38c8f1 (diff) | |
| download | gcc-ea70b59793087198d6ae137fa5e68096ec1c30a3.tar.gz | |
2012-10-02 Andrew Pinski <apinski@cavium.com>
* simplify-rtx.c (simplify_unary_operation_1 <case TRUNCATE>):
Don't optimize a truncate of a mem if it is a vector mode.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192006 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a8ad41cb28d..932f5739146 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-10-02 Andrew Pinski <apinski@cavium.com> + + * simplify-rtx.c (simplify_unary_operation_1 <case TRUNCATE>): + Don't optimize a truncate of a mem if it is a vector mode. + 2012-10-02 Alexandre Oliva <aoliva@redhat.com> PR debug/54551 diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index c3e8a0a7e18..acd47987603 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -873,6 +873,7 @@ simplify_unary_operation_1 (enum rtx_code code, enum machine_mode mode, rtx op) /* A truncate of a memory is just loading the low part of the memory if we are not changing the meaning of the address. */ if (GET_CODE (op) == MEM + && !VECTOR_MODE_P (mode) && !MEM_VOLATILE_P (op) && !mode_dependent_address_p (XEXP (op, 0), MEM_ADDR_SPACE (op))) return rtl_hooks.gen_lowpart_no_emit (mode, op); |