diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-08-14 07:41:21 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-08-14 07:41:21 +0000 |
| commit | 79db42ad80f974a3ab3e26cc9f27dd80f758ac71 (patch) | |
| tree | f65ee46abc8fdcc78833bb133081242356b6efb8 /gcc/config/alpha/alpha.h | |
| parent | a9b30977034616e7f67a271758594dd545778945 (diff) | |
| download | gcc-79db42ad80f974a3ab3e26cc9f27dd80f758ac71.tar.gz | |
* config/alpha/alpha.h (PROMOTE_MODE): Don't promote vector types.
* config/alpha/alpha.c (function_value): Use PROMOTE_MODE.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85989 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/alpha/alpha.h')
| -rw-r--r-- | gcc/config/alpha/alpha.h | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index 43cdfff7f2a..d2ab9332289 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -471,16 +471,22 @@ extern const char *alpha_tls_size_string; /* For -mtls-size= */ type, but kept valid in the wider mode. The signedness of the extension may differ from that of the type. - For Alpha, we always store objects in a full register. 32-bit objects - are always sign-extended, but smaller objects retain their signedness. */ - -#define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ - if (GET_MODE_CLASS (MODE) == MODE_INT \ - && GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \ - { \ - if ((MODE) == SImode) \ - (UNSIGNEDP) = 0; \ - (MODE) = DImode; \ + For Alpha, we always store objects in a full register. 32-bit integers + are always sign-extended, but smaller objects retain their signedness. + + Note that small vector types can get mapped onto integer modes at the + whim of not appearing in alpha-modes.def. We never promoted these + values before; don't do so now that we've trimed the set of modes to + those actually implemented in the backend. */ + +#define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ + if (GET_MODE_CLASS (MODE) == MODE_INT \ + && (TYPE == NULL || TREE_CODE (TYPE) != VECTOR_TYPE) \ + && GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \ + { \ + if ((MODE) == SImode) \ + (UNSIGNEDP) = 0; \ + (MODE) = DImode; \ } /* Define this if most significant bit is lowest numbered |